Cheap flights Seattle — Boston (SEA — BOS)

Good to know - Cheap tickets Seattle — Boston

Cheapest flight found $90
Minimal flight time 5h 12m
Flight distance 4001 km
Most popular airline Alaska Airlines

Airfare Seattle – Boston by month

Here you can find out in what months how much a ticket Seattle – Boston costs to buy cheap plane tickets.

Month One-way Round-trip
April 2026
March 2026
January 2026
November 2025
October 2025
September 2025
August 2025
July 2025
June 2025
May 2025
April 2025
March 2025

Remember that the optimal time for booking air tickets is 59 days before the departure date, this is the average time at which air tickets were sold at the lowest prices.

Schedule of direct flights Seattle — Boston

Departure Arrival Flight days Flight Airlines Flight time Airports
07:45 16:24 daily DL459 Delta Connection 5h 39m Seattle-Tacoma International Airport — Logan International Airport Select dates
07:50 16:22 mon, tue, wed, thu, fri, sat DL459 Delta Connection 5h 32m Seattle-Tacoma International Airport — Logan International Airport Select dates
08:00 16:37 daily AS306 Alaska Airlines 5h 37m Seattle-Tacoma International Airport — Logan International Airport Select dates
08:30 17:08 wed, thu, fri, sat, sun AS306 Alaska Airlines 5h 38m Seattle-Tacoma International Airport — Logan International Airport Select dates
09:00 17:23 mon, wed AS306 Alaska Airlines 5h 23m Seattle-Tacoma International Airport — Logan International Airport Select dates
10:46 19:25 wed, fri, sat AS818 Alaska Airlines 5h 39m Seattle-Tacoma International Airport — Logan International Airport Select dates
10:56 19:23 tue, wed, thu, fri, sat, sun AS818 Alaska Airlines 5h 27m Seattle-Tacoma International Airport — Logan International Airport Select dates
10:58 19:19 daily AS818 Alaska Airlines 5h 21m Seattle-Tacoma International Airport — Logan International Airport Select dates
13:10 21:46 daily B6398 JetBlue 5h 36m Seattle-Tacoma International Airport — Logan International Airport Select dates
15:35 23:59 mon, tue, wed, thu, fri, sun DL474 Delta Connection 5h 24m Seattle-Tacoma International Airport — Logan International Airport Select dates
All routes

Dynamics airfare Seattle — Boston by month for the last year

according to LowCost.Club for the last year

The airfare depends on the departure date. Our chart shows the low season prices on route Seattle — Boston

The graph shows that booking flights Seattle — Boston is best planned for November and flights Seattle — Boston — Seattle in the month of November.

Flights Seattle — Boston

The selection of cheap flights Seattle — Boston

Here you can find and purchase the cheapest flights Seattle — Boston from $90 and Seattle — Boston — Seattle from $100.

The price of the flight Seattle — Boston (United States) — Seattle from $100 (round-trip).

The average price of the flight Seattle — Boston (United States) — Seattle $386 (round-trip).

Low cost flights Seattle — Boston (SEA — BOS)

The distance between Seattle and Boston 2486 miles (or 4001 kilometres).

The time difference between Seattle and Boston is 3 h.

Minimal flight time from Seattle to Boston 5h 12m.

LowCostClub always do a comparison of airfares Seattle — Boston with several airlines (include Delta Connection, Alaska Airlines, JetBlue). They will always give you all available options so you can find the cheapest flight to Boston. In addition, you can choose the platform where you want to place your orders. There are also special offers for air tickets Seattle — Boston. Last week, for instance, the cheapest round-trip prices stood at $100 while the cheapest one-way price that was available within the last week cost $90

Routes from nearby cities to Boston

A flight from a neighbouring city can help you save money on plane tickets.

Most often, they fly to Boston from Pasco, this is the closest city with an airport from Seattle. The cheapest ticket can be bought for a flight departing from Portland from $105.

Popular International routes from Seattle

Popular routes from Boston

If you are going to fly from Boston, then study the popular flights. The most popular flights from Boston:

Popular domestic routes from Seattle

FAQ about Seattle — Boston

Yes, they do: DL459, AS306, AS818, B6398, DL474, AS460, B6198, DL473, AS536

Yes, you can fly from Seattle to Boston. Seattle has 3 airports (Boeing Field International Airport, Kenmore Air Harbor SPB, Seattle-Tacoma International Airport) for flights. Delta Connection, Alaska Airlines, JetBlue depart from Seattle on mon, tue, wed, thu, fri, sat, sun. There are non-direct flights through ABX Air, Aer Lingus, Aeromexico, Air Canada, Air France, AlphaSky, American Eagle, Ameriflight, Atlas Air, Boutique Air, Breeze Airways, British Airways, Condor, DHL, Emirates, FedEx, Frontier (Cali the Mountain Lion Livery), Hainan Airlines, Hawaiian Airlines, Icelandair, Japan Airlines, Jet Linx Aviation, Korean Air, Lufthansa, NetJets, Qatar Airways, Southwest Airlines, Sun Country Airlines, Tradewind Aviation, Turkish Airlines, United Express, UPS, Virgin Atlantic, WestJet.

A direct flight lasts an average of 5h 12m, during which time the aircraft covers a distance of 4001 km.

The price of flights Seattle — Boston starts from $90.

Planes fly Seattle — Boston 7 times a week on the following days: mon, tue, wed, thu, fri, sat, sun

In Seattle — Boeing Field International Airport, Kenmore Air Harbor SPB, Seattle-Tacoma International Airport. In Boston — Pease Air Force Base, Logan International Airport, Boston City Heliport.

The following flights fly between Seattle and Boston: DL459, DL459, AS306, AS306, AS306, AS818, AS818, AS818, B6398, DL474, AS460, DL474, AS460, B6198, B6198, DL473, DL473, AS536, AS536, AS536, AS536

High season is considered to be July and the cheapest month is November. Enter your preferred airports (or cities) and dates into the search form above to unlock the latest Seattle — Boston flight deals.

The following airlines have direct flights Seattle — Boston: Delta Connection, Alaska Airlines, JetBlue.

All the following airlines flights Seattle — Boston: ABX Air, Aer Lingus, Aeromexico, Air Canada, Air France, Alaska Airlines, AlphaSky, American Eagle, Ameriflight, Atlas Air, Boutique Air, Breeze Airways, British Airways, Condor, Delta Connection, DHL, Emirates, FedEx, Frontier (Cali the Mountain Lion Livery), Hainan Airlines, Hawaiian Airlines, Icelandair, Japan Airlines, Jet Linx Aviation, JetBlue, Korean Air, Lufthansa, NetJets, Qatar Airways, Southwest Airlines, Sun Country Airlines, Tradewind Aviation, Turkish Airlines, United Express, UPS, Virgin Atlantic, WestJet.

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