Cheap JetBlue flights from USA to Seattle. Check out some of the cheapest JetBlue flights we've come across from USA to Seattle. Deals update often to give you more flight options matching your criteria. Wed 5/8 7:30 pm JFK - SEA. Nonstop 6h 19m JetBlue. Fri 5/10 11:59 pm SEA - JFK. Nonstop 5h 21m JetBlue. Deal found 4/18 $217.Washington ». Seattle ». First Class. $261. Seattle. Search and compare first class flight deals to Seattle. Fly from San Francisco from $327, from Ontario from $387, from Los Angeles from $454. Book your first class tickets to Seattle.Distance from Boston to Seattle (Logan International Airport – Seattle–Tacoma International Airport) is 2496 miles / 4016 kilometers / 2169 nautical miles. See also a map, estimated flight duration, carbon dioxide emissions and … The two airlines most popular with KAYAK users for flights from Boston to Beijing are Korean Air and Hainan Airlines. With an average price for the route of $1,995 and an overall rating of 8.5, Korean Air is the most popular choice. Hainan Airlines is also a great choice for the route, with an average price of $1,463 and an overall rating of 8.1. Cheap Flights from Boston to San Francisco (BOS-SFO) Prices were available within the past 7 days and start at $98 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to San Francisco with no change fee on ...The calculation of flight time is based on the straight line distance from BOS to SEA ("as the crow flies"), which is about 2,495 miles or 4 016 kilometers. Your trip begins at Boston Logan International Airport in Boston, Massachusetts. It ends at Seattle-Tacoma International Airport in Seattle, Washington.Direct. from $286. Boston.$287 per passenger.Departing Mon, Apr 29, returning Tue, May 7.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Mon, Apr 29, arriving in Boston Logan International.Inbound direct flight with Alaska Airlines departing from Boston Logan ... Cheap Flights from Seattle to Boston (SEA-BOS) Prices were available within the past 7 days and start at $101 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to Boston with no change fee on selected flights. 9. Virgin Atlantic. Virgin Atlantic, Sir Richard Branson’s brainchild, has always been about breaking the mold and offering a flight experience that’s anything but ordinary. As one of the best airlines to travel to Seattle, Virgin Atlantic brings British flair, a sprinkle of fun, and a whole lot of style to the skies.View Delta's best fares on flights from Seattle for your next getaway. Cradled by mountains and cool waters, stunning nature meets creative cityscapes in the sprawling and colorful Seattle, Washington. This gives visitors flying into Seattle-Tacoma International Airport (SEA) the best of outdoor adventure with the abounding options of a city ...Cheap flights from Boston (BOS) to Seattle (SEA) Prices were available within the past 7 days and start at CA $160 for one-way flights and CA $333 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to Seattle with no change fee on selected ...9. Virgin Atlantic. Virgin Atlantic, Sir Richard Branson’s brainchild, has always been about breaking the mold and offering a flight experience that’s anything but ordinary. As one of the best airlines to travel to Seattle, Virgin Atlantic brings British flair, a sprinkle of fun, and a whole lot of style to the skies. The cheapest return flight ticket from Houston to Seattle found by KAYAK users in the last 72 hours was for $119 on Frontier, followed by Spirit Airlines ($157). One-way flight deals have also been found from as low as $75 on Frontier and from $94 on Spirit Airlines. Boston to Seattle Flights Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Boston to Seattle offer the perfect respite. Not only does exploring Seattle provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare ... The average flight time from Boston to Seattle is 5 hours and 50 minutes. The flight distance is 4005 km / 2489 miles and the average flight speed is 688 km/h / 428 mph. How many QR2033 flights are operated per week? 4 flights per week. The flight QR2033 is operated on Thursday, Friday, Saturday and Sunday.Track JetBlue (B6) #498 flight from Seattle-Tacoma Intl to Boston Logan Intl. Flight status, tracking, and historical data for JetBlue 498 (B6498/JBU498) including scheduled, estimated, and actual departure and arrival times.Direct flights from Boston to Seattle. All flights from BOS to SEA non-stop. There are direct flights from General Edward Lawrence Logan International, Massachusetts, USA to Seattle Tacoma International (SEA), Washington, USA every day of the week The flight distance is 2502 miles and the trip usually takes about 6 hours and 9 minutes.Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight. Find the best flights fast, track prices, and book …Amazing JetBlue Airways BOS to SEA Flight Deals. The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $244 round trip and $139 one way. Prices and availability subject to change. Additional terms may apply. Fri, May 3 - Tue, May 7.Cheap Flights from Boston (BOS) to Seattle (SEA) Prices were available within the past 7 days and start at £110 for one-way flights and £205 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Return. Fri, 3 May - Tue, 7 May. BOS.Book the lowest fares on Seattle flights today! Find low-fare American Airlines flights to Seattle. Enjoy our travel experience and great prices. Book the lowest fares on Seattle flights today! ... Boston (BOS) to. Seattle (SEA) 05/06/24 - 05/13/24. from. $251* Updated: 5 hours ago. Round trip. I. Economy. See Latest Fare. Columbus (CMH) to ...Cheap Flights from Boston Logan International (BOS) to Seattle (SEA) from $232 | Skyscanner. Roundtrip One way Multi-city. Depart. 4/14/24. Return. 4/21/24. …BOS - Boston Logan - Signature Flight Support 240 Prescott St, Boston, MA 02128 View Airport; Charter to Boston Private Jet Charter Boston to Seattle Local Seattle Airports SEA - Seattle Tacoma International - 2400 S 170th St, SeaTac, WA 98158, USA View Airport; Charter to SeattleIn the last 72 hours, the best return deals on flights connecting Boston to Seattle were found on Spirit Airlines ($235) and United Airlines ($249). American Airlines proposed the cheapest one-way flight at $124.To find the best deals on flights to Seattle from Boston with Alaska Airlines, just enter your travel dates, filter by Alaska Airlines, and hit search. You’ll find 4 flights to choose from and can sort by price, flight duration, and arrival or departure time. Return flights from Seattle SEA to Boston BOS with Alaska AirlinesB789. Arrived / Gate Arrival. Sun 05:40PM EST. 08:30PM PST Sun. Boston Logan Intl (KBOS) - Seattle-Tacoma Intl (KSEA) - Flight Finder - Find and track any flight (airline or private) -- search by origin and destination.Flight Status & Notifications. All fields required. Search by. From City or Airport. To City or Airport. Departure Date Selected Departure date 2024AprilWednesday24. Open calender and then use pageup and pagedown to navigate between months and alt + pageup and alt + pagedown for years.Use Google Flights to plan your next trip and find cheap one way or round trip flights from Boston to Shanghai. Find the best flights fast, track prices, and book with confidence.4 days ago · Compare flight deals to Seattle from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Seattle start from £102 one-way. Flex your dates to find the best BOS-SEA ticket prices. Flights from Seattle to Boston. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Boston.Seattle. 239 € per passenger. Departing Thu, 2 May, returning Sun, 5 May. Return flight with Alaska Airlines and jetBlue. Outbound direct flight with Alaska Airlines departs from Boston Logan International on Thu, 2 May, arriving in Seattle / Tacoma International.AS349 and Boston BOS to Seattle SEA Flights. Flight AS349 is code-shared by 3 airlines using the flight numbers AA9369, JL6357, TN2336. Other flights departing from Boston BOS: B6167, DL5670, AA2600, DL627. Other flights arriving at Seattle SEA: UA1986, AS2400, AS2185, AS9441. All flights connecting Boston BOS to Seattle SEA.Plan your Delta flight from Boston to Seattle by taking into account the cheapest months to travel. The average price of a one-way Delta flight from Boston to Seattle is currently $137 while a round-trip flight costs $269. Price data was last updated on April 7, 2024.Lowest fares from Seattle to Boston. Searching for cheap flights from Seattle to Boston? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today.Book one-way or return flights from Boston to Seattle starting at US$91. Fly with top airlines and search for flights deals on Trip.com now!Direct flights from Boston to Seattle. All flights from BOS to SEA non-stop. There are direct flights from General Edward Lawrence Logan International, Massachusetts, USA to Seattle Tacoma International (SEA), Washington, USA every day of the week The flight distance is 2502 miles and the trip usually takes about 6 hours and 9 minutes.This month, there are 26,970 flights arriving at Seattle / Tacoma Airport, which are 899 flights per day or 37 flights per hour. On an average day, there is at least 1 flight arriving every 2 minutes. The most frequently departed flights to Seattle / Tacoma are routes from Portland (PDX) in United States and Phoenix (PHX), also in United States.1 stop. from ₹ 9,206. Seattle. ₹ 10,287 per passenger.Departing Wed, 1 May.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Boston Logan International on Wed, 1 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From ₹ 10,287, select.Find cheap flights to Seattle from $43. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Thu 5/23. Thu 5/30. Search. Direct flights only. Search hundreds of travel sites at once …The two airlines most popular with KAYAK users for flights from Boston to San Francisco are Alaska Airlines and Delta. With an average price for the route of $371 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $338 and an overall rating of 8.0.Atlanta, GA - Hartsfield-Jackson Atlanta Intl Airport is the most popular connection for one stop flights between Boston, MA and Seattle; In-Flight information. The average flying time for a direct flight from Boston, MA to Seattle is 6 hours 24 minutes; Most direct flights leave around 7:00 EDT; Korean Air flight #25 is today's earliest flight ...Flying time between cities. Travelmath provides an online flight time calculator for all types of travel routes. You can enter airports, cities, states, countries, or zip codes to find the flying time between any two points. The database uses the great circle distance and the average airspeed of a commercial airliner to figure out how long a ... Tue, 24 Sep SEA - BOS with Spirit Airlines. 1 stop. from £206. Seattle. £235 per passenger.Departing Thu, 2 May, returning Mon, 6 May.Return flight with Delta.Outbound direct flight with Delta departs from Boston Logan International on Thu, 2 May, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle ... Apr 17, 2024 · Cheap USA to Seattle flights in April & May 2024. Check out some of the best flight deals from USA to Seattle in 2024. Check back in a little while for more flight options. Sat 5/4 11:45 am DEN - SEA. Nonstop 3h 00m Frontier. Tue 5/7 9:35 pm SEA - DEN. Nonstop 2h 50m Frontier. Deal found 4/16 $69. 1 stop. Wed, 1 May BOS - SEA with United. 1 stop. from $395. Boston.$454 per passenger.Departing Wed, 1 May, returning Tue, 7 May.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Wed, 1 May, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston …Apr 26, 2020 · $129 Cheap Delta flights Boston (BOS) to Seattle (SEA) Prices were available within the past 7 days and start at $129 for one-way flights and $254 for round trip, for the period specified. Prices and availability are subject to change. AS9202 and Boston BOS to Seattle SEA Flights. Other flights departing from Boston BOS: AA1414, B6569, DL1410, B6365. Other flights arriving at Seattle SEA: DL372, UA1399, AS1307, WN799. All flights connecting Boston BOS to Seattle SEA.Seattle. 239 € per passenger. Departing Thu, 2 May, returning Sun, 5 May. Return flight with Alaska Airlines and jetBlue. Outbound direct flight with Alaska Airlines departs from Boston Logan International on Thu, 2 May, arriving in Seattle / Tacoma International.1 stop. Wed, 1 May BOS - SEA with United. 1 stop. from $395. Boston.$454 per passenger.Departing Wed, 1 May, returning Tue, 7 May.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Wed, 1 May, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston …Cheap Flights from Boston to Seattle Paine Field Intl. Airport (BOS-PAE) Prices were available within the past 7 days and start at $215 for one-way flights and $463 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.The two airlines most popular with KAYAK users for flights from Boston to San Francisco are Alaska Airlines and Delta. With an average price for the route of $371 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $338 and an overall rating of 8.0.Reportedly, Air India may deploy Boeing 777-9 for its likely nonstop service to India from Dallas and Los Angeles. A fleet of new widebody B777-9 planes will join Air India starting from the end of 2024, as part of the US$34-billion deal with Boeing. Currently, IndianEagle.com has best deals for LAX, Seattle and Dallas to India flights by ...14-Mar-2024. 07:37AM EDT Boston Logan Intl - BOS. 10:44AM PDT Seattle-Tacoma Intl - SEA. B39M. 6h 07m. Join FlightAware View more flight history Purchase entire flight history for ASA459. Get Alerts.️ Use the interactive calendar available on Expedia to see the cheapest Alaska Airlines (Boston BOS - Seattle SEA) ticket prices during the weeks surrounding your travel dates. Compare flight prices for similar timeframes and adjust departure and return dates to get the cheapest fare possible. The lowest-priced days are highlighted in green.Users in need of a one-way flight from Boston to Washington can choose from these deals. Users can also find round-trip Boston to Washington flights by using the search form above. Wed 4/24 5:00 am BOS - SEA. 1 stop 10h 38m American Airlines. Deal found 4/17 $125.Boston Logan International. Seattle / Tacoma International. Compare Boston Logan International to Seattle / Tacoma International flight deals. Find the cheapest month or …Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight. Find the best flights fast, track prices, and book …DL9759 and Boston BOS to Seattle SEA Flights. Other flights departing from Boston BOS: AS311, DL58, OG112, WN1181. Other flights arriving at Seattle SEA: AS379, AS2003, AS385, AC8810. All flights connecting Boston BOS to Seattle SEA.The two airlines most popular with KAYAK users for flights from Boston to San Francisco are Alaska Airlines and Delta. With an average price for the route of $371 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $338 and an overall rating of 8.0.Cheap Flights from Boston to Shanghai (BOS-PVG) Prices were available within the past 7 days and start at $762 for one-way flights and $1,226 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to Shanghai with no change fee on selected flights.Please click on the specific area of the page that your feedback is related to so it can be sent to the correct team.Flights from Seattle to Boston. Flights to Boston. Massachusetts. United States of America. Flights. Expedia.com. $101 Cheap Flights from Seattle (SEA) to Boston …Direct. from $286. Boston.$287 per passenger.Departing Mon, Apr 29, returning Tue, May 7.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Mon, Apr 29, arriving in Boston Logan International.Inbound direct flight with Alaska Airlines departing from Boston Logan ...Mar 22, 2024 · The two airlines most popular with KAYAK users for flights from Boston to Seattle are Alaska Airlines and JetBlue. With an average price for the route of $372 and an overall rating of 8.3, Alaska Airlines is the most popular choice. JetBlue is also a great choice for the route, with an average price of $398 and an overall rating of 8.1. Cheap Flights from Seattle to Boston (SEA-BOS) Prices were available within the past 7 days and start at $101 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to Boston with no change fee on selected flights. Prices were available within the past 7 days and start at $139 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Sat, Apr 27 - …The best round-trip flight deal from Boston to Seattle found on momondo in the last 72 hours is $217. The fastest flight from Boston to Seattle takes 6h 05m. Direct flights go …Find the cheapest month – or even day – to fly to Boston Logan International. Apr. from £322. May. from £303. Jun. from £376. Jul. from £417.Cheap Flights from Boston Logan International (BOS) to Seattle (SEA) from $232 | Skyscanner. Roundtrip One way Multi-city. Depart. 4/14/24. Return. 4/21/24. …Seattle. £201 per passenger.Departing Sun, 28 Apr, returning Sun, 12 May.Return flight with United.Outbound indirect flight with United, departs from Boston Logan …The flight time from Seattle to Boston is 5 hours, 16 minutes. The time spent in the air is 4 hours, 46 minutes. These numbers are averages. In reality, it varies by airline with JetBlue being the fastest taking 5 hours, 11 minutes, and Alaska the slowest taking 5 …Washington ». Seattle. $227. Flights to Seattle, Seattle. Find flights to Seattle from $125. Fly from Massachusetts on American Airlines, Alaska Airlines, JetBlue and more. Search for Seattle flights on KAYAK now to find the best deal.Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight.Cheap Flights from Boston to San Francisco (BOS-SFO) Prices were available within the past 7 days and start at $98 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to San Francisco with no change fee on ...Seattle. £201 per passenger.Departing Sun, 28 Apr, returning Sun, 12 May.Return flight with United.Outbound indirect flight with United, departs from Boston Logan … Atlanta, GA - Hartsfield-Jackson Atlanta Intl Airport is the most popular connection for one stop flights between Boston, MA and Seattle; In-Flight information. The average flying time for a direct flight from Boston, MA to Seattle is 6 hours 24 minutes; Most direct flights leave around 7:00 EDT; Korean Air flight #25 is today's earliest flight ... Flights from Boston to Seattle. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Boston to Seattle. Find the best flights fast,... Direct. from $286. Boston.$287 per passenger.Departing Mon, Apr 29, returning Tue, May 7.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Mon, Apr 29, arriving in Boston Logan International.Inbound direct flight with Alaska Airlines departing from Boston Logan ...Cheap Flights from Boston to San Francisco (BOS-SFO) Prices were available within the past 7 days and start at $98 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to San Francisco with no change fee on ...Prices were available within the past 7 days and start at ₹11,552 for one-way flights and ₹21,344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Compare & reserve one-way or return flights from Boston to Seattle from ₹11,552 only to get the best flight deals and promotions ... Find flights to Seattle from $120. Fly from Boston on Sun Country Air, American Airlines, Spirit Airlines and more. Search for Seattle flights on KAYAK now to find the best deal. Tue, 24 Sep SEA - BOS with Spirit Airlines. 1 stop. from £206. Seattle. £235 per passenger.Departing Thu, 2 May, returning Mon, 6 May.Return flight with Delta.Outbound direct flight with Delta departs from Boston Logan International on Thu, 2 May, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle ...
Find flights to Alaska from $254. Fly from Boston on Alaska Airlines, Sun Country Air, Delta and more. Search for Alaska flights on KAYAK now to find the best deal.. Flimzila.com
From. New York (JFK) to Seattle (SEA) From. $154. one-way. Restrictions Apply. Boston (BOS) to Seattle (SEA) From. $194. There are 4 airlines that fly nonstop from Boston to Seattle. They are: Alaska Airlines, Delta, Hainan Airlines and JetBlue. The cheapest price of all airlines flying this route was found with JetBlue at $133 for a one-way flight. On average, the best prices for this route can be found at Alaska Airlines. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Boston. Find the best flights fast, track prices, and book with confidence. Round-trip One-way. Mon 4/22. Mon 4/29. 1 adult, Economy. Find deals. We work with more than 300 partners to bring you better travel deals. The best prices from …B789. Arrived / Gate Arrival. Sun 05:40PM EST. 08:30PM PST Sun. Boston Logan Intl (KBOS) - Seattle-Tacoma Intl (KSEA) - Flight Finder - Find and track any flight (airline or private) -- search by origin and destination.Flights from Seattle to Boston. Flights to Boston. Massachusetts. United States of America. Flights. Expedia.com. $101 Cheap Flights from Seattle (SEA) to Boston …The Seattle-based airline said in a statement it requested a ground stop for all Alaska and Horizon air flights out of an abundance of caution after it “experienced an …Cheap Flights from Boston to San Francisco (BOS-SFO) Prices were available within the past 7 days and start at $98 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to San Francisco with no change fee on ...The cheapest prices found with in the last 7 days for return flights were $53 and $39 for one-way flights to Seattle for the period specified. Prices and availability are subject to change. Additional terms apply. Wed, May 15 - Wed, May 22. PHX.The flight time from Boston to Seattle is 6 hours, 9 minutes. The time spent in the air is 5 hours, 33 minutes. These numbers are averages. In reality, it varies by airline with Delta being the fastest taking 6 hours, 7 minutes, and JetBlue the …Find The Best Day To Fly from Boston to Seattle Amazing Alaska Airlines BOS to SEA Flight Deals The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $265 round trip and $149 one way.Each day, there are between 9 and 14 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 13m. The most common departure time is …Cheap Flights from Boston Logan International (BOS) to Seattle (SEA) from $232 | Skyscanner. Roundtrip One way Multi-city. Depart. 4/14/24. Return. 4/21/24. … Book Cheap Nonstop & Direct Flights from Boston to Seattle: Search and compare airfares on Tripadvisor to find the best nonstop and direct flights for your trip from Boston to Seattle. Choose the best airline for you by reading reviews and viewing hundreds of ticket rates for non stop and direct flights going to and from your destination. Flight Status & Notifications. All fields required. Search by. From City or Airport. To City or Airport. Departure Date Selected Departure date 2024AprilWednesday24. Open calender and then use pageup and pagedown to navigate between months and alt + pageup and alt + pagedown for years.From. New York (JFK) to Seattle (SEA) From. $154. one-way. Restrictions Apply. Boston (BOS) to Seattle (SEA) From. $194.Flights from Seattle to Boston. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Boston.AS364 and Boston BOS to Seattle SEA Flights. Flight AS364 is code-shared by 2 airlines using the flight numbers QR2033, TN2334. Other flights departing from Boston BOS: DL5698, NK2086, AA1434, AA2145. Other flights arriving at Seattle SEA: AS3, DL3840, DL3688, DL4141.14-Mar-2024. 07:37AM EDT Boston Logan Intl - BOS. 10:44AM PDT Seattle-Tacoma Intl - SEA. B39M. 6h 07m. Join FlightAware View more flight history Purchase entire flight history for ASA459. Get Alerts.There are 4 airlines that fly direct from Boston to Seattle. They are: Alaska Airlines, Delta, Hainan Airlines and JetBlue. The cheapest price of all airlines flying this route was found ….