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Find Flight Deals from Boston Logan International to Seattle/Tacoma Intl (BOS - SEA)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Boston Logan International to Seattle/Tacoma Intl

(Round-trip)
Depart: Tue May 12 2015 Return: Tue May 19 2015 Trip spans 8 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
3:25p
12h 05m
1 stop
SEA
1:10p
BOS
3:55a
14h 45m
1 stop
Depart: Tue Jun 2 2015 Return: Tue Jun 9 2015 Trip spans 8 days
Alaska Airlines
Alaska Airlines
BOS
3:00a
SEA
9:12a
6h 12m
nonstop
SEA
9:00a
BOS
7:01p
10h 01m
1 stop
Depart: Mon May 11 2015 Return: Tue May 12 2015 Trip spans 2 days
United
United
BOS
2:00p
SEA
11:45p
9h 45m
1 stop
SEA
10:05a
BOS
5:15p
7h 10m
1 stop
Depart: Wed May 13 2015 Return: Mon May 18 2015 Trip spans 6 days
United
United
BOS
2:00p
SEA
11:44p
9h 44m
1 stop
SEA
9:04p
BOS
7:00a
9h 56m
1 stop
Depart: Thu May 14 2015 Return: Mon May 18 2015 Trip spans 5 days
United
United
BOS
2:00p
SEA
11:45p
9h 45m
1 stop
SEA
5:50p
BOS
2:50a
9h 00m
1 stop
Depart: Wed May 27 2015 Return: Mon Jun 1 2015 Trip spans 6 days
United
United
BOS
2:00p
SEA
11:44p
9h 44m
1 stop
SEA
8:46p
BOS
4:25a
7h 39m
1 stop
Depart: Wed Jun 3 2015 Return: Tue Jun 9 2015 Trip spans 7 days
United
United
BOS
2:00p
SEA
11:49p
9h 49m
1 stop
SEA
5:05p
BOS
12:13a
7h 08m
1 stop
Depart: Sat Sep 5 2015 Return: Fri Sep 11 2015 Trip spans 7 days
United
United
BOS
2:00a
SEA
9:46a
7h 46m
1 stop
SEA
7:40p
BOS
2:56a
7h 16m
1 stop
Depart: Sun Sep 6 2015 Return: Fri Sep 11 2015 Trip spans 6 days
United
United
BOS
3:45a
SEA
12:24p
8h 39m
1 stop
SEA
7:40p
BOS
2:56a
7h 16m
1 stop
Depart: Wed Sep 9 2015 Return: Sat Sep 12 2015 Trip spans 4 days
United
United
BOS
2:00a
SEA
9:46a
7h 46m
1 stop
SEA
6:30p
BOS
1:58a
7h 28m
1 stop
Depart: Thu Jun 4 2015 Return: Mon Jun 8 2015 Trip spans 5 days
American Airlines
American Airlines
BOS
3:15p
SEA
12:29a
9h 14m
1 stop
SEA
8:40p
BOS
5:32a
8h 52m
1 stop
Depart: Tue Sep 1 2015 Return: Tue Sep 15 2015 Trip spans 15 days
Virgin America
Virgin America
BOS
3:20a
SEA
3:55p
12h 35m
1 stop
SEA
1:20p
BOS
12:45a
11h 25m
1 stop
Depart: Mon Sep 14 2015 Return: Tue Sep 22 2015 Trip spans 9 days
Virgin America
Virgin America
BOS
3:20a
SEA
3:55p
12h 35m
1 stop
SEA
3:15p
BOS
12:45a
9h 30m
1 stop
Depart: Tue Sep 15 2015 Return: Tue Sep 22 2015 Trip spans 8 days
Virgin America
Virgin America
BOS
3:20a
SEA
3:55p
12h 35m
1 stop
SEA
3:15p
BOS
12:45a
9h 30m
1 stop
Depart: Fri Sep 18 2015 Return: Mon Sep 21 2015 Trip spans 4 days
Virgin America
Virgin America
BOS
3:20a
SEA
3:55p
12h 35m
1 stop
SEA
3:15p
BOS
12:45a
9h 30m
1 stop
Depart: Mon Sep 21 2015 Return: Mon Oct 5 2015 Trip spans 15 days
Virgin America
Virgin America
BOS
3:20a
SEA
3:55p
12h 35m
1 stop
SEA
1:50p
BOS
11:05p
9h 15m
1 stop
Depart: Fri Sep 25 2015 Return: Mon Sep 28 2015 Trip spans 4 days
Virgin America
Virgin America
BOS
5:00a
SEA
3:35p
10h 35m
1 stop
SEA
3:15p
BOS
12:45a
9h 30m
1 stop
Depart: Sun May 24 2015 Return: Wed May 27 2015 Trip spans 4 days
JetBlue Airways
JetBlue Airways
BOS
3:00a
SEA
9:05a
6h 05m
nonstop
SEA
6:51p
BOS
12:09a
5h 18m
nonstop
Depart: Tue Apr 28 2015 Return: Sat May 9 2015 Trip spans 12 days
US Airways
US Airways
BOS
5:50a
SEA
3:52p
10h 02m
1 stop
SEA
2:00p
BOS
10:44p
8h 44m
1 stop
Depart: Mon May 4 2015 Return: Mon May 11 2015 Trip spans 8 days
Delta
Delta
BOS
10:32a
SEA
7:41p
9h 09m
1 stop
SEA
5:15p
BOS
1:23a
8h 08m
1 stop
Direct flights BOS to SEA on Delta
Flight # Depart BOS Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9238 7:00 am 10:12 am May 11 - Jun 5
9238 8:00 am 11:13 am May 3 - May 10
9238 8:00 am 11:13 am May 6 - May 6
7519 9:00 am 12:13 pm May 11 - Jun 6
7482 6:55 pm 10:07 pm May 4 - May 4
7482 6:55 pm 10:07 pm May 3 - May 10
7482 6:55 pm 10:07 pm May 11 - Jun 5
Airports
Origin

Boston
$270
Destination

Seattle
$270