Cheap flights from Seattle to Boston from $0
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Discover deals on Seattle to Boston flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from Seattle to Boston
Best
8 Feb
DEP
07:55
SEA
16:20
BOS
5h 25m
8 Feb
DEPARTURE
07:55 - 16:20
5h 25m
SEA
BOS
8 Feb
DEP
15:40
SEA
23:54
BOS
5h 14m
8 Feb
DEPARTURE
15:40 - 23:54
5h 14m
SEA
BOS
American Airlines flights from Seattle to Boston
Our best American Airlines deals on Seattle to Boston tickets
Best
1 stop
8 Feb
DEP
08:04
SEA
1×
23:44
BOS
12h 40m
8 Feb
DEPARTURE
08:04 - 23:44
12h 40m
SEA
1 stop
BOS
1 stop
8 Feb
DEP
06:00
SEA
1×
17:20
BOS
8h 20m
8 Feb
DEPARTURE
06:00 - 17:20
8h 20m
SEA
1 stop
BOS
Alaska Airlines flights from Seattle to Boston
Our best Alaska Airlines deals on Seattle to Boston tickets
Best
8 Feb
DEP
07:55
SEA
16:20
BOS
5h 25m
8 Feb
DEPARTURE
07:55 - 16:20
5h 25m
SEA
BOS
8 Feb
DEP
15:40
SEA
23:54
BOS
5h 14m
8 Feb
DEPARTURE
15:40 - 23:54
5h 14m
SEA
BOS
Hawaiian Airlines flights from Seattle to Boston
Our best Hawaiian Airlines deals on Seattle to Boston tickets
Best
8 Feb
DEP
15:40
SEA
23:54
BOS
5h 14m
8 Feb
DEPARTURE
15:40 - 23:54
5h 14m
SEA
BOS
8 Feb
DEP
07:55
SEA
16:20
BOS
5h 25m
8 Feb
DEPARTURE
07:55 - 16:20
5h 25m
SEA
BOS
What's the cheapest day of the week to fly from Seattle to Boston?
If your flying dates are flexible, you should consider flying to Boston on a Wed, as we generally find the cheapest rates on that day. On the other hand, Fri is the most expensive day to fly.
What is the cheapest month to fly from Seattle to Boston?
The cheapest month for flights from Seattle to Boston is Sep, where tickets cost $312 on average. The most expensive months are Jul.
JanFebMarAprMayJunJulAugSepOctNovDec
$450$381$312
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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 Seattle to Boston 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.