Cheap flights from Boston to Seattle

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Flight information for Boston to Seattle
(BOS to 03A)

Find info about flight duration, direct flights, and airports for your flight from Boston to Seattle
Best Price Found $43 The best flight deal from Boston to Seattle found on momondo in the last 72 hours is $43
Fastest flight time 6h 12m The fastest flight from Boston to Seattle takes 6h 12m.
Direct flights Every day Direct flights go from Boston to Seattle every day.
Airports in Seattle 3 airports There 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 to Seattle?
January
The cheapest time of year to fly to Seattle from Boston is January. Most expensive is July
What is the cheapest day to fly to Seattle?
Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Monday
When is the cheapest time to fly to Seattle?
in the afternoon
Boston to Seattle flights are approximately 17% more expensive in the morning than in the afternoon
What is the cheapest airline that flies to Seattle?
Southwest
Southwest, Spirit Airlines, and Major Airline are the most popular carriers operating from Boston to Seattle
What is the cheapest route?
Boston Logan Intl - Seattle/Tacoma Intl
Fly from Boston Logan Intl to Seattle/Tacoma Intl for the best Boston - Seattle flight prices
BOS
Boston Logan Intl
SEA
Seattle/Tacoma Intl
When is the cheapest time to book a flight to Seattle?
59 days before
The cheapest time to buy a flight from Boston to Seattle is approximately 59 days to departure
60
Days before departure
0

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
Quickest
Cheapest
Spirit Airlines
Jun 4
BOS
Boston Logan Intl
10h 14m
1 stop
SEA
Seattle/Tacoma Intl
Jun 10
SEA
Seattle/Tacoma Intl
12h 21m
1 stop
BOS
Boston Logan Intl
Spirit Airlines
Apr 30
BOS
Boston Logan Intl
10h 14m
1 stop
SEA
Seattle/Tacoma Intl
May 3
SEA
Seattle/Tacoma Intl
11h 44m
1 stop
BOS
Boston Logan Intl
Spirit Airlines
Apr 30
BOS
Boston Logan Intl
10h 14m
1 stop
SEA
Seattle/Tacoma Intl
May 4
SEA
Seattle/Tacoma Intl
11h 44m
1 stop
BOS
Boston 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 Spirit Airlines
Quickest
Cheapest
Spirit Airlines
Apr 30
BOS
Boston Logan Intl
10h 14m
1 stop
SEA
Seattle/Tacoma Intl
Multiple Airlines
May 3
BOS
Boston Logan Intl
24h 39m
1 stop
SEA
Seattle/Tacoma Intl
Spirit Airlines
Apr 29
BOS
Boston Logan Intl
12h 29m
1 stop
SEA
Seattle/Tacoma Intl

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 Portland Flights
Fastest flight time
6h 10m
Cheapest price
$46
Providence to Portland Flights
Fastest flight time
7h 33m
Cheapest price
$197

Flights from Boston to: