Cheap flights from Boston to Seattle

Round-trip
1 adult
Economy
From?
To?
Tue 8/3
Tue 8/10

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Boston Logan Intl to Seattle.
View current United States travel restrictions

Flight information for Boston to Seattle
(BOS to SEA)

Find info about flight duration, direct flights, and airports for your flight from Boston to Seattle
Best Price Found$133The best flight deal from Boston to Seattle found on momondo in the last 72 hours is $133
Fastest flight time6h 20mThe fastest flight from Boston to Seattle takes 6h 20m
Direct flightsWedDirect flights go from Boston to Seattle on Wednesday. The only airline offering direct flights is Virgin Atlantic.
Airports in Seattle3 airportsThere are 3 airports near Seattle: Seattle King County/Boeing (BFI), Seattle Lake Union Spb (LKE), Seattle/Tacoma Intl (SEA)

How to get the cheapest flight ticket from Boston to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Boston to Seattle?

January

The cheapest time of year to fly to Seattle from Boston is January. Most expensive is December

What is the cheapest day to depart Boston for Seattle?

Wednesday

The cheapest day of the week is typically Wednesday. The most expensive is typically Monday

When is the cheapest time to fly from Boston to Seattle?

in the afternoon

Boston to Seattle flights are approximately 18% more expensive in the morning than in the afternoon

What is the cheapest airline that flies to Seattle from Boston?

Major Airline

American Airlines, Frontier, and Major Airline are the most popular carriers operating from Boston to Seattle

What is the cheapest Boston to Seattle flight route?

Boston Logan Intl - Seattle/Tacoma Intl

Fly from Boston Logan Intl to Seattle/Tacoma Intl for the best Boston - Seattle flight prices

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

53 days before

The cheapest time to buy a flight from Boston to Seattle is approximately 53 days to departure


Easily compare round-trip flights from Boston to Seattle

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Boston to Seattle by changing tabs
Spirit Airlines
Sep 18
BOS2:00 amBoston Logan Intl
14h 29m
1 stop
SEA4:29 pmSeattle/Tacoma Intl
Sep 22
SEA10:00 amSeattle/Tacoma Intl
13h 29m
1 stop
BOS11:29 pmBoston Logan Intl
Spirit Airlines
Sep 22
BOS2:00 amBoston Logan Intl
10h 11m
1 stop
SEA12:11 pmSeattle/Tacoma Intl
Sep 25
SEA2:19 pmSeattle/Tacoma Intl
9h 10m
1 stop
BOS11:29 pmBoston Logan Intl
Spirit Airlines
Sep 14
BOS2:00 amBoston Logan Intl
16h 05m
1 stop
SEA6:05 pmSeattle/Tacoma Intl
Sep 21
SEA2:19 pmSeattle/Tacoma Intl
9h 10m
1 stop
BOS11:29 pmBoston Logan Intl
Spirit Airlines
Sep 18
BOS2:00 amBoston Logan Intl
10h 11m
1 stop
SEA12:11 pmSeattle/Tacoma Intl
Sep 21
SEA2:19 pmSeattle/Tacoma Intl
9h 10m
1 stop
BOS11:29 pmBoston Logan Intl
Spirit Airlines
Sep 21
BOS2:00 amBoston Logan Intl
16h 05m
1 stop
SEA6:05 pmSeattle/Tacoma Intl
Oct 5
SEA2:19 pmSeattle/Tacoma Intl
9h 10m
1 stop
BOS11:29 pmBoston Logan Intl
Spirit Airlines
Sep 14
BOS2:00 amBoston Logan Intl
16h 05m
1 stop
SEA6:05 pmSeattle/Tacoma Intl
Sep 18
SEA2:20 pmSeattle/Tacoma Intl
9h 09m
1 stop
BOS11:29 pmBoston Logan Intl

Find the cheapest one-way flights from Boston to Seattle

If you're looking for one-way flights from Boston to Seattle, view some of our deals below provided by Alaska Airlines, American Airlines and Spirit Airlines
Spirit Airlines
Sep 21
BOS2:00 amBoston Logan Intl
16h 05m
1 stop
SEA6:05 pmSeattle/Tacoma Intl
Spirit Airlines
Sep 11
BOS2:00 amBoston Logan Intl
10h 11m
1 stop
SEA12:11 pmSeattle/Tacoma Intl
Spirit Airlines
Sep 21
BOS2:00 amBoston Logan Intl
16h 05m
1 stop
SEA6:05 pmSeattle/Tacoma Intl

Best airlines flying from Boston to Seattle

Compare and see reviews for airlines that fly from Boston to Seattle with momondo
AirlineRatingFree CancellationPrice
Spirit Airlines
PriceFrom $94
Free Cancellation
Rating
6.5
6.8

Boarding

6.1

Comfort

7.2

Crew

5.5

Entertainment

5.6

Food

Reviews

Pros: Well, it was not very comfortable and we were delayed for an hour. And a crew member was sick.

Cons: Mostly everything.

1 / 10
Alaska Airlines
PriceFrom $118
Free Cancellation
Rating
8.3
8.7

Boarding

8.4

Comfort

8.7

Crew

8.1

Entertainment

7.6

Food

Reviews

Pros: The comfort of the plane was great! Lots of room and very comfortable seating.

Cons: I found some members of staff to be a bit rude. When other passengers asked questions or did something wrong (that was a minor issue), one of the staff members in particular talked down to them and treated them like they were stupid.

1 / 10
Delta
PriceFrom $118
Free Cancellation
Rating
8.2
8.3

Boarding

8.5

Comfort

8.3

Crew

7.9

Entertainment

8.0

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
United Airlines
PriceFrom $122
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Pros: Everything! From ticketing agent to all the crew on our flight back were awesome. Thank you!

1 / 10
American Airlines
PriceFrom $126
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.8

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Delayed flight no reasons seems like American Airlines don’t know what to do in these situations

Cons: I believe this airlines should have figured the answer to this question by now.

1 / 10
Sun Country Air
PriceFrom $130
Free Cancellation
Rating
8.2
8.5

Boarding

8.1

Comfort

8.9

Crew

7.3

Entertainment

7.7

Food

Reviews

Pros: Quick boarding. Inexpensive ticket. Direct flight.

Cons: Crew walked thru cabin at least 5 times collecting garbage, but could not hand out sealed snack or sealed water. People sat should-to-shoulder - No buffer space, but asked to leave the plane with 6 foot intervals???? This airline picks and chooses their Covid precautions. Quick and inexpensive flight, if you don’t mind the rest.

1 / 3
JetBlue
PriceFrom $138
Free Cancellation
Rating
7.1
7.4

Boarding

7.7

Comfort

8.0

Crew

7.2

Entertainment

6.8

Food

Reviews

Cons: Boarding at a tourist location is tough but cabin space is prestigious nowadays. Passengers need to be given clear guidance for carry-on baggage since it delays the onboarding process.

1 / 10
Frontier
PriceFrom $138
Free Cancellation
Rating
6.0
6.4

Boarding

5.8

Comfort

6.7

Crew

4.9

Entertainment

5.2

Food

Reviews

Cons: The boarding process was horrible. The flight was running late there was no communication until people started screaming at the person behind the counter tell us what the heck is going on. Then they made us walk at least a mile to the plane.

1 / 10

  • Are airlines flying from Boston Logan Intl to Seattle/Tacoma Intl offering flexible cancellation due to COVID-19?

    To ease the stress of booking flights, some of our airline partners flying from Boston Logan Intl to Seattle/Tacoma Intl are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travelers: Delta, JetBlue, and Alaska Airlines.

  • How far is Boston Logan Intl to Seattle/Tacoma Intl by plane?

    The straight-line distance from Boston Logan Intl to Seattle/Tacoma Intl is 2484.0 mi. Flights usually cover this in 6h 17m, depending on flying conditions and air traffic around both airports.


Can I fly to Seattle/Tacoma Intl from Boston Logan Intl right now?

Information is based on travel restrictions for travel to Seattle/Tacoma Intl within the United States

Most visitors from Boston Logan Intl need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Boston Logan Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Boston Logan Intl are not required to quarantine after entering Seattle/Tacoma Intl.

Can I fly back to Boston Logan Intl from Seattle/Tacoma Intl?

Returning to Boston Logan Intl from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Boston Logan Intl.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Boston Logan Intl.

If you are planning to travel to Seattle at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for Boston to Seattle

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Boston to Spokane Flights
Fastest flight time8h 25m
Cheapest price$311