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Cheap Flights from Seattle to Boston (SEA - BOS)

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 SEA to BOS (Found by others)

Sun Mon Tue Wed Thu Fri Sat
  1 $498 2 $406 3 $443 4 $430 5 $451 6 $410
7 $406 8 $390 9 $390 10 $382 11 $425 12 $381 13 $385
14 $423 15 $346 16 $300 17 $306 18 $378 19 $360 20 $331
21 $403 22 $319 23 $306 24 $306 25 $315 26 $296 27 $301
28 $315 29 $296 30 $300        
KAYAK searches hundreds of sites to find the best rate for your next flight from Seattle to Boston. Get the best flight deal for your Boston trip!
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Direct flights SEA to BOS on Delta
Flight # Depart SEA Arrive BOS Sun Mon Tue Wed Thu Fri Sat Valid Between
9069 8:35 am 5:07 pm Sep 28 - Nov 1
9069 8:35 am 5:10 pm Sep 5 - Sep 27
7530 3:35 pm 11:59 pm Sep 28 - Oct 6
7530 3:35 pm 11:55 pm Sep 26 - Sep 26
7530 3:35 pm 11:55 pm Sep 27 - Sep 27
7530 3:35 pm 11:59 pm Sep 30 - Sep 30
7530 3:35 pm 11:59 pm Oct 7 - Oct 26
7530 3:35 pm 11:55 pm Aug 26 - Sep 25
7512 11:05 pm 7:19 am Sep 28 - Oct 3
7512 11:05 pm 7:24 am Sep 5 - Sep 12
7512 11:05 pm 7:24 am Sep 14 - Sep 21
7512 11:05 pm 7:24 am Sep 22 - Sep 26
7512 11:05 pm 7:19 am Oct 5 - Oct 31