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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: Tue Sep 8 2015 Return: Tue Sep 15 2015 Trip spans 8 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: Thu Sep 10 2015 Return: Thu Sep 24 2015 Trip spans 15 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
3:34p
12h 14m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Mon Sep 14 2015 Return: Sun Sep 27 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 15 2015 Return: Sun Sep 20 2015 Trip spans 6 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: Wed Sep 16 2015 Return: Sun Sep 27 2015 Trip spans 12 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 17 2015 Return: Sun Sep 27 2015 Trip spans 11 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: Fri Sep 18 2015 Return: Tue Sep 22 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: Sat Sep 19 2015 Return: Wed Sep 23 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: Sun Sep 20 2015 Return: Thu Sep 24 2015 Trip spans 5 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: Mon Sep 21 2015 Return: Thu Sep 24 2015 Trip spans 4 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 22 2015 Return: Thu Sep 24 2015 Trip spans 3 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: Thu Sep 24 2015 Return: Sun Sep 27 2015 Trip spans 4 days
Sun Country Air
Sun Country Air
BOS
4:55p
SEA
11:09a
18h 14m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Sat Sep 26 2015 Return: Wed Sep 30 2015 Trip spans 5 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: Tue Sep 1 2015 Return: Tue Sep 15 2015 Trip spans 15 days
American Airlines
American Airlines
BOS
2:30a
SEA
11:51a
9h 21m
1 stop
SEA
12:05p
BOS
11:01p
10h 56m
1 stop
Depart: Tue Oct 13 2015 Return: Tue Oct 20 2015 Trip spans 8 days
Virgin America
Virgin America
BOS
3:20a
SEA
4:05p
12h 45m
1 stop
SEA
1:20p
BOS
12:40a
11h 20m
1 stop
Depart: Fri Sep 11 2015 Return: Mon Sep 14 2015 Trip spans 4 days
Delta
Delta
BOS
2:20a
SEA
10:42a
8h 22m
1 stop
SEA
7:15p
BOS
2:21a
7h 06m
1 stop
Depart: Sun Aug 30 2015 Return: Wed Sep 16 2015 Trip spans 18 days
US Airways
US Airways
BOS
1:30a
SEA
9:27a
7h 57m
1 stop
SEA
7:40a
BOS
3:38p
7h 58m
1 stop
Depart: Thu Nov 19 2015 Return: Mon Nov 23 2015 Trip spans 5 days
JetBlue Airways
JetBlue Airways
BOS
3:40a
SEA
9:54a
6h 14m
nonstop
SEA
7:45a
BOS
12:46p
5h 01m
nonstop
Depart: Mon Sep 7 2015 Return: Mon Sep 28 2015 Trip spans 22 days
United
United
BOS
2:10a
SEA
1:45p
11h 35m
1 stop
SEA
5:16p
BOS
12:13a
6h 57m
1 stop
Depart: Mon Dec 28 2015 Return: Thu Jan 7 2016 Trip spans 11 days
Alaska Airlines
Alaska Airlines
BOS
2:00a
SEA
8:45a
6h 45m
nonstop
SEA
4:30p
BOS
9:45p
5h 15m
nonstop
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 10:08 am Jun 27 - Jul 11
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
7520 6:55 pm 10:10 pm Jun 29 - Jul 11
7551 6:55 pm 10:20 pm Jul 27 - Jul 30
Airports
Origin

Boston
$276
Destination

Seattle
$276