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Cheap Flights from Boston to Seattle (BOS - SEA)

DepartReturn
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 $465 2 $443 3 $397 4 $397 5 $397 6 $397
7 $402 8 $385 9 $346 10 $376 11 $350 12 $320 13 $325
14 $364 15 $326 16 $300 17 $306 18 $311 19 $320 20 $311
21 $329 22 $311 23 $300 24 $306 25 $307 26 $307 27 $306
28 $315 29 $296 30 $296        
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 10:15 am Oct 8 - Oct 27
7519 7:00 am 10:15 am Sep 29 - Oct 7
7519 7:00 am 10:15 am Sep 28 - Oct 1
7519 7:00 am 10:09 am Sep 27 - Sep 27
7519 7:00 am 10:09 am Aug 26 - Sep 26
9238 8:40 am 11:49 am Sep 23 - Sep 27
9238 8:40 am 11:49 am Sep 5 - Sep 9
9238 8:40 am 11:49 am Sep 6 - Sep 13
9238 8:40 am 11:55 am Oct 6 - Nov 1
9238 8:40 am 11:55 am Sep 29 - Oct 4
9238 8:40 am 11:49 am Sep 15 - Sep 22
7482 6:10 pm 9:19 pm Sep 5 - Sep 27
7482 6:10 pm 9:28 pm Sep 28 - Nov 1