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Find Deals on Flights 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: Wed Sep 9 2015 Return: Thu Sep 10 2015 Trip spans 2 days
Sun Country Air
Sun Country Air
BOS
7:45a
SEA
3:34p
7h 49m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Thu Sep 10 2015 Return: Fri Sep 11 2015 Trip spans 2 days
Sun Country Air
Sun Country Air
BOS
7:45a
SEA
3:34p
7h 49m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Sun Sep 13 2015 Return: Wed Sep 16 2015 Trip spans 4 days
Sun Country Air
Sun Country Air
BOS
4:55p
SEA
11:09a
18h 14m
1 stop
SEA
1:25p
BOS
3:55a
14h 30m
1 stop
Depart: Mon Sep 14 2015 Return: Tue Sep 15 2015 Trip spans 2 days
Sun Country Air
Sun Country Air
BOS
7:45a
SEA
3:34p
7h 49m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Tue Sep 15 2015 Return: Sun Sep 20 2015 Trip spans 6 days
Sun Country Air
Sun Country Air
BOS
7:45a
SEA
3:34p
7h 49m
1 stop
SEA
1:25p
BOS
3:55a
14h 30m
1 stop
Depart: Wed Sep 16 2015 Return: Sun Sep 20 2015 Trip spans 5 days
Sun Country Air
Sun Country Air
BOS
7:45a
SEA
3:34p
7h 49m
1 stop
SEA
1:25p
BOS
3:55a
14h 30m
1 stop
Depart: Thu Sep 17 2015 Return: Sun Sep 20 2015 Trip spans 4 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:09a
7h 49m
1 stop
SEA
1:25p
BOS
3:55a
14h 30m
1 stop
Depart: Fri Sep 18 2015 Return: Sun Sep 20 2015 Trip spans 3 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:09a
7h 49m
1 stop
SEA
1:25p
BOS
3:55a
14h 30m
1 stop
Depart: Sat Sep 19 2015 Return: Thu Sep 24 2015 Trip spans 6 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:09a
7h 49m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Sun Sep 20 2015 Return: Wed Sep 23 2015 Trip spans 4 days
Sun Country Air
Sun Country Air
BOS
7:45a
SEA
3:34p
7h 49m
1 stop
SEA
1:25p
BOS
3:55a
14h 30m
1 stop
Depart: Mon Sep 21 2015 Return: Sun Oct 4 2015 Trip spans 14 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:09a
7h 49m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Tue Sep 22 2015 Return: Wed Sep 30 2015 Trip spans 9 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
3:34p
12h 14m
1 stop
SEA
1:25p
BOS
3:55a
14h 30m
1 stop
Depart: Wed Sep 23 2015 Return: Sun Sep 27 2015 Trip spans 5 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:09a
7h 49m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Tue Sep 1 2015 Return: Wed Sep 9 2015 Trip spans 9 days
American Airlines
American Airlines
BOS
2:30a
SEA
11:51a
9h 21m
1 stop
SEA
8:00a
BOS
7:10p
11h 10m
1 stop
Depart: Sat Aug 22 2015 Return: Sat Sep 12 2015 Trip spans 22 days
Virgin America
Virgin America
BOS
5:00a
SEA
4:55p
11h 55m
1 stop
SEA
3:00a
BOS
2:50p
11h 50m
1 stop
Depart: Sat Oct 31 2015 Return: Tue Nov 3 2015 Trip spans 4 days
US Airways
US Airways
BOS
1:30a
SEA
9:39a
8h 09m
1 stop
SEA
6:59p
BOS
2:27a
7h 28m
1 stop
Depart: Fri Sep 11 2015 Return: Sat Sep 12 2015 Trip spans 2 days
Delta
Delta
BOS
2:40p
SEA
10:21p
7h 41m
1 stop
SEA
2:00a
BOS
9:17a
7h 17m
1 stop
Depart: Sat Nov 7 2015 Return: Wed Nov 11 2015 Trip spans 5 days
JetBlue Airways
JetBlue Airways
BOS
2:30p
SEA
8:43p
6h 13m
nonstop
SEA
7:47a
BOS
12:49p
5h 02m
nonstop
Depart: Tue Nov 3 2015 Return: Fri Nov 6 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
BOS
1:45p
SEA
8:20p
6h 35m
nonstop
SEA
4:35p
BOS
9:45p
5h 10m
nonstop
Depart: Wed Dec 2 2015 Return: Sun Dec 6 2015 Trip spans 5 days
United
United
BOS
1:00a
SEA
8:46a
7h 46m
1 stop
SEA
8:45a
BOS
4:09p
7h 24m
1 stop
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 Jul 12 - Aug 22
9238 8:40 am 11:55 am Jun 27 - Aug 22
7520 6:55 pm 10:20 pm Jul 31 - Aug 14
7520 6:55 pm 10:20 pm Jul 12 - Jul 26
7551 6:55 pm 10:20 pm Jul 27 - Jul 30
Airports
Origin

Boston
$286
Destination

Seattle
$286