Cheap flights from Boston to Seattle from $0
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Discover deals on Boston to Seattle flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from Boston to Seattle
Best
8 Feb
DEP
07:00
BOS
10:34
SEA
6h 34m
8 Feb
DEPARTURE
07:00 - 10:34
6h 34m
BOS
SEA
8 Feb
DEP
18:44
BOS
22:17
SEA
6h 33m
8 Feb
DEPARTURE
18:44 - 22:17
6h 33m
BOS
SEA
American Airlines flights from Boston to Seattle
Our best American Airlines deals on Boston to Seattle tickets
Best
1 stop
8 Feb
DEP
06:00
BOS
1×
13:17
SEA
10h 17m
8 Feb
DEPARTURE
06:00 - 13:17
10h 17m
BOS
1 stop
SEA
1 stop
8 Feb
DEP
06:00
BOS
1×
15:34
SEA
12h 34m
8 Feb
DEPARTURE
06:00 - 15:34
12h 34m
BOS
1 stop
SEA
Alaska Airlines flights from Boston to Seattle
Our best Alaska Airlines deals on Boston to Seattle tickets
Best
8 Feb
DEP
07:00
BOS
10:34
SEA
6h 34m
8 Feb
DEPARTURE
07:00 - 10:34
6h 34m
BOS
SEA
8 Feb
DEP
18:44
BOS
22:17
SEA
6h 33m
8 Feb
DEPARTURE
18:44 - 22:17
6h 33m
BOS
SEA
Hawaiian Airlines flights from Boston to Seattle
Our best Hawaiian Airlines deals on Boston to Seattle tickets
Best
8 Feb
DEP
18:44
BOS
22:17
SEA
6h 33m
8 Feb
DEPARTURE
18:44 - 22:17
6h 33m
BOS
SEA
8 Feb
DEP
07:00
BOS
10:34
SEA
6h 34m
8 Feb
DEPARTURE
07:00 - 10:34
6h 34m
BOS
SEA
What's the cheapest day of the week to fly from Boston to Seattle?
If your flying dates are flexible, you should consider flying to Seattle on a Fri, as we generally find the cheapest rates on that day. On the other hand, Sun is the most expensive day to fly.
What is the cheapest month to fly from Boston to Seattle?
The cheapest month for flights from Boston to Seattle is Sep, where tickets cost $306 on average. The most expensive months are Dec.
JanFebMarAprMayJunJulAugSepOctNovDec
$482$394$306
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Everything you should know
Cheapest one-way flight
$340
Typical prices: $340–$680
When to book
3 weeks
in advance to save around 25%
Good to know
💰
Save money
Compare prices across airlines to find the best deal. Prices can vary significantly.
📅
Be flexible
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
⏰
Book early
Booking 3+ weeks in advance typically offers the best prices.
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Frequently asked questions
The cheapest flight from Boston to Seattle currently costs AUD $340. Prices typically range from $340 to $340. Prices change frequently, so we recommend booking early and being flexible with your travel dates.