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Cheap Flights from Boston to Seattle (BOS - SEA)

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1 adult
Note: some airlines charge for infants in laps.
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 (Found by others)

Sun Mon Tue Wed Thu Fri Sat
          1 $452 2 $452
3 $451 4 $452 5 $452 6 $421 7 $549 8 $549 9 $493
10 $656 11 $562 12 $587 13 $509 14 $571 15 $490 16 $551
17 $565 18 $518 19 $366 20 $366 21 $418 22 $428 23 $366
24 $385 25 $373 26 $316 27 $316 28 $437 29 $432 30 $316
31 $327            
KAYAK searches hundreds of sites to find the best rate for your next flight from Boston to Seattle. Get the best flight deal for your Seattle trip!
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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
7519 7:00 am 10:09 am Aug 25 - Sep 26
7519 7:00 am 10:09 am Aug 24 - Aug 24
7519 7:00 am 10:07 am Aug 18 - Aug 22
7519 7:00 am 10:07 am Aug 16 - Aug 23
7519 7:00 am 10:07 am Aug 7 - Aug 15
9238 8:40 am 11:49 am Sep 6 - Sep 13
9238 8:40 am 11:49 am Aug 26 - Sep 4
9238 8:40 am 11:49 am Sep 5 - Sep 9
9238 8:40 am 11:49 am Aug 25 - Aug 29
9238 8:45 am 11:59 am Aug 9 - Aug 23
9238 8:45 am 11:59 am Jul 29 - Aug 8
7482 6:10 pm 9:19 pm Sep 5 - Sep 27
7482 6:10 pm 9:19 pm Aug 24 - Sep 4
7482 6:45 pm 10:09 pm Aug 7 - Aug 19
7482 6:45 pm 10:09 pm Aug 20 - Aug 22
7482 6:45 pm 10:09 pm Aug 21 - Aug 23