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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: Sat May 2 2015 Return: Mon May 4 2015 Trip spans 3 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:15a
7h 55m
1 stop
SEA
1:10p
BOS
3:55a
14h 45m
1 stop
Depart: Mon May 4 2015 Return: Tue May 5 2015 Trip spans 2 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:15a
7h 55m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Tue May 5 2015 Return: Sun May 10 2015 Trip spans 6 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:15a
7h 55m
1 stop
SEA
1:10p
BOS
3:55a
14h 45m
1 stop
Depart: Wed May 6 2015 Return: Thu May 7 2015 Trip spans 2 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:15a
7h 55m
1 stop
SEA
1:10p
BOS
3:55a
14h 45m
1 stop
Depart: Thu May 7 2015 Return: Mon May 11 2015 Trip spans 5 days
Sun Country Air
Sun Country Air
BOS
7:45a
SEA
3:25p
7h 40m
1 stop
SEA
1:10p
BOS
3:55a
14h 45m
1 stop
Depart: Fri May 8 2015 Return: Mon May 11 2015 Trip spans 4 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: Sat May 9 2015 Return: Mon May 11 2015 Trip spans 3 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:15a
7h 55m
1 stop
SEA
1:10p
BOS
3:55a
14h 45m
1 stop
Depart: Tue May 12 2015 Return: Tue May 19 2015 Trip spans 8 days
Sun Country Air
Sun Country Air
BOS
3:20a
SEA
11:15a
7h 55m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Thu Apr 30 2015 Return: Thu May 7 2015 Trip spans 8 days
Sun Country Air
Sun Country Air
BOS
4:55p
SEA
11:15a
18h 20m
1 stop
SEA
1:10p
BOS
3:55a
14h 45m
1 stop
Depart: Fri May 1 2015 Return: Sun May 3 2015 Trip spans 3 days
Sun Country Air
Sun Country Air
BOS
4:55p
SEA
11:15a
18h 20m
1 stop
SEA
1:10p
BOS
3:55a
14h 45m
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
5:16p
BOS
12:21a
7h 05m
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: Tue Jun 2 2015 Return: Mon Jun 8 2015 Trip spans 7 days
United
United
BOS
2:00p
SEA
11:50p
9h 50m
1 stop
SEA
8:27p
BOS
6:08a
9h 41m
1 stop
Depart: Sun May 3 2015 Return: Tue May 5 2015 Trip spans 3 days
American Airlines
American Airlines
BOS
1:00a
SEA
9:05a
8h 05m
1 stop
SEA
8:15p
BOS
4:47a
8h 32m
1 stop
Depart: Fri May 29 2015 Return: Mon Jun 1 2015 Trip spans 4 days
Virgin America
Virgin America
BOS
5:00a
SEA
3:55p
10h 55m
1 stop
SEA
1:40p
BOS
12:35a
10h 55m
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
4:43a
8h 03m
1 stop
Depart: Fri Jun 5 2015 Return: Sun Jun 7 2015 Trip spans 3 days
Delta
Delta
BOS
1:55p
SEA
11:22p
9h 27m
1 stop
SEA
5:50p
BOS
1:25a
7h 35m
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 Aug 11 2015 Return: Mon Aug 17 2015 Trip spans 7 days
US Airways
US Airways
BOS
8:00a
SEA
5:54p
9h 54m
1 stop
SEA
2:00p
BOS
12:53a
10h 53m
1 stop
Depart: Thu Oct 15 2015 Return: Mon Oct 26 2015 Trip spans 12 days
Alaska Airlines
Alaska Airlines
BOS
2:55p
SEA
9:13p
6h 18m
nonstop
SEA
6:30p
BOS
11:41p
5h 11m
nonstop
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
9238 8:00 am 11:21 am Apr 7 - May 2
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 10:10 pm Apr 29 - May 2
7482 6:55 pm 10:10 pm Apr 28 - Apr 28
7482 6:55 pm 10:10 pm Apr 7 - Apr 27
7482 6:55 pm 10:07 pm May 11 - Jun 5
Airports
Origin

Boston
$260
Destination

Seattle
$260