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Cheap Flights from Boston to Seattle - BOS to SEA

Popular flights from Boston to Seattle

If your flight days are flexible and you looking for a good deal, our charts on cheap flights provide some insight regarding affordable flight options for your next big adventure.

Alaska Airlines
Departure Date Return Date Lowest Price
Feb 23, 2016 Mar 10, 2016 $210
American Airlines
Departure Date Return Date Lowest Price
Feb 23, 2016 Mar 1, 2016 $243
JetBlue Airways
Departure Date Return Date Lowest Price
Feb 29, 2016 Mar 2, 2016 $237
Feb 29, 2016 Mar 3, 2016 $237
Mar 1, 2016 Mar 2, 2016 $237
Mar 1, 2016 Mar 3, 2016 $237
Mar 2, 2016 Mar 9, 2016 $237
Sun Country Airlines
Departure Date Return Date Lowest Price
Feb 29, 2016 Mar 7, 2016 $374
Apr 13, 2016 Apr 26, 2016 $374
United Airlines
Departure Date Return Date Lowest Price
Feb 20, 2016 Feb 23, 2016 $208

How Much Does it Cost to Fly from Boston to Seattle (BOS to SEA)?

We have collected flight cost data from across the web for travel from Boston to Seattle, and have found the average flight price for this trip to be $237.

When Can I Buy the Cheapest Flight from Boston to Seattle (BOS to SEA)?

Airlines can adjust prices for plane tickets from Boston to Seattle based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Boston to Seattle

The chart below shows up-to-date information regarding how far in advance a flight from Boston to Seattle should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $530 $403
7-14 days $335 $208
14-21 days $210 $214
21-30 days $230 $243
30-60 days $237 $256
60-90 days $287 $280
90+ days $323 $297

Cheapest Day To Fly from Boston to Seattle

The chart below shows up-to-date information regarding the cheapest days to fly from Boston to Seattle.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$230 $210 $230 $237 $262 $208 $287

Lowest Fares Chart By Month from Boston to Seattle

The chart below shows the lowest fare by month when flying from Boston to Seattle.

Month Origin Destination Carrier Depart Date Return Date Stops Price
February Boston Seattle United 2/20/16 2/23/16 1 $208
March Boston Seattle Alaska 3/1/16 3/2/16 0 $230
April Boston Seattle Alaska 4/2/16 4/12/16 0 $279
May Boston Seattle United 5/2/16 5/10/16 1 $290
June Boston Seattle United 6/1/16 6/6/16 1 $302
July Boston Seattle United 7/4/16 7/12/16 1 $315
August Boston Seattle United 8/31/16 9/7/16 1 $305
September Boston Seattle United 9/10/16 9/24/16 1 $301

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Boston to Seattle

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Boston to Seattle.

Next 30 Days

SunMonTueWedThuFriSat
7 8 9 10 11 12 13
$792
14 15 16 17 18 19 20
$792 $335
21 22 23 24 25 26 27
$335 $282
28 29 1 2 3 4 5
$282 $237
6 7 8 9 10 11 12
$237 $330
13 14 15 16 17 18 19
$330

Non-Stop vs Connecting Flights from Boston to Seattle (BOS to SEA)

Your Boston to Seattle flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Boston to Seattle is $291.

The average price for non-stop flights from Boston to Seattle is $249.

The chart below shows up to date information regarding non-stop flights from Boston to Seattle.

Nonstop Flight Details from Boston to Seattle
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 2 2 1 2 2 2 1 07:00 18:45
JetBlue 2 2 2 2 2 1 2 08:37 19:15

Round Trip vs One Way Flights from Boston to Seattle (BOS to SEA)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Boston to Seattle. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Boston to Seattle is $141.

The average price for round trip flights from Boston to Seattle is $272.

More Cheap Flights

FlightsAirlineLowest Price
New York to Seattle United, Alaska, American, US Airways, Sun Country, JetBlue, Frontier, Virgin America, AirTran $234
Newark to Seattle United, Delta, Alaska, American, US Airways, JetBlue, Virgin America $247
Hartford to Seattle Alaska, United, Delta, US Airways, American $314
Providence to Seattle United, Delta, US Airways $257
Burlington to Seattle United, Delta, US Airways, JetBlue $377
Manchester to Seattle United, Delta, US Airways $305
Portland to Seattle United, Delta, US Airways, JetBlue $301
Albany to Seattle United, Delta, US Airways $340
Westchester County to Seattle United, Delta, US Airways, American $291
Bangor to Seattle Delta, US Airways $436
Long Island MacArthur to Seattle United, US Airways $664
Newburgh to Seattle Delta, US Airways Check Dates
New Haven to Seattle United, US Airways $467
Nantucket to Seattle Delta, US Airways, JetBlue Check Dates
New York to Los Angeles Alaska, United, American, US Airways, Sun Country, Spirit, Hawaiian, JetBlue, Frontier, Virgin America, AirTran $239
New York to Chicago Alaska, United, American, US Airways, Spirit, JetBlue, AirTran $74
New York to San Francisco Alaska, United, American, US Airways, Sun Country, Hawaiian, JetBlue, Frontier, Virgin America, AirTran $238
New York to Las Vegas United, American, US Airways, Sun Country, Spirit, JetBlue, Frontier, Virgin America, AirTran $228
New York to Vancouver Air Canada, Alaska, United, Delta, Cathay, US Airways, American, WestJet $334
New York to London Virgin Atlantic, Turkish, Swiss, LOT, Norwegian Shuttle, Aeroflot, Delta, Iberia, Air Europa, Icelandair, Royal Air Maroc, US Airways, Transaero, KLM, Austrian, Alitalia, Brussels, Finnair, British Airways, Kuwait, Air Canada, United, American, Air Berlin, Air France, Lufthansa, Air India, Aer Lingus $649
New York to Portland United, Alaska, US Airways, American, Spirit, JetBlue, Frontier, Virgin America, AirTran $262
New York to Atlanta United, US Airways, American, Spirit, AirTran $105
New York to Dallas - Ft Worth United, American, US Airways, Sun Country, Spirit, JetBlue, Frontier $89
Boston to Portland Alaska, United, Delta, American, US Airways, Spirit, JetBlue, Virgin America, AirTran $241
New York to Denver United, US Airways, American, Spirit, JetBlue, Frontier, AirTran $201
New York to Paris Turkish, Swiss, LOT, Air Tahiti Nui, Aeroflot, Delta, Iberia, Air Europa, Icelandair, Royal Air Maroc, US Airways, XL Airways, KLM, Austrian, Alitalia, Brussels, Finnair, British Airways, Air Canada, United, American, Air Berlin, Air France, Lufthansa, Aer Lingus $539
New York to Orlando United, US Airways, American, Spirit, JetBlue, AirTran $124
Boston to Vancouver Air Canada, Alaska, United, Delta, US Airways, American, WestJet $305
New York to Miami United, American, US Airways $97
New York to Toronto Air Canada, United, US Airways, American, WestJet, Pakistan $172

Airlines Flying from Boston to Seattle (BOS to SEA)

Below are the different airlines that fly from Boston to Seattle with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Boston to Seattle.

Boston to Seattle
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American JFK X X X X X X X
Alaska - X X X X X X X
Alaska PDX X X X X X X X
JetBlue - X X X X X X X
JetBlue JFK X X X X X X X
Delta DTW X X X X X X X
United EWR X X X X X X X
Virgin America SFO X X X X X X X
Southwest BWI X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Boston and Seattle, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Boston to Seattle Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Boston to Seattle?
Answer: The average Boston to Seattle flight time is 6 hours and 26 minutes.
Question: How many miles are there between Boston and Seattle?
Answer: The distance from Boston to Seattle is 2488 miles.
Question: How common are direct flights from Boston to Seattle?
Answer: There are 25 direct flights from Boston to Seattle.
Question: What is the most popular airline for non-stop flights from Boston to Seattle?
Answer: JetBlue Airways provides 52% of the non-stop flights between Boston and Seattle.
Question: What are the most popular connecting cities when flying from Boston to Seattle?
Answer: New York, NY
Boston (BOS) To Seattle (SEA) Flights: Cheap Flights From Boston To Seattle | FareCompare.