Cheap Flights from Boston to Seattle (BOS - SEA)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youth
12-17
Child
2-11
Seat Infant
under 2
Lap Infant
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Best fares from BOS to SEA

Sun Mon Tue Wed Thu Fri Sat
  1 $437 2 $471 3 $348 4 $348 5 $348 6 $320
7 $320 8 $320 9 $320 10 $320 11 $304 12 $280 13 $283
14 $345 15 $283 16 $302 17 $350 18 $446 19 $538 20 $574
21 $509 22 $509 23 $574 24 $467 25 $415 26 $575 27 $704
28 $708 29 $623 30 $574 31 $511      

Best fares found by others...

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Direct flights BOS to SEA on Delta
Flight # Depart BOS Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9238 7:35 am 11:15 am Dec 21 - Jan 6
9238 7:35 am 11:15 am Dec 8 - Dec 20
9238 7:35 am 11:10 am Dec 4 - Dec 6
7482 6:40 pm 10:15 pm Dec 7 - Jan 10
7482 6:40 pm 10:10 pm Dec 6 - Dec 6
7482 6:40 pm 10:10 pm Dec 4 - Dec 5