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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: Tue May 5 2015 Trip spans 4 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
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Mon Apr 27 2015 Return: Mon May 4 2015 Trip spans 8 days
Sun Country Air
Sun Country Air
BOS
4:55p
SEA
8:35a
15h 40m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Wed Apr 29 2015 Return: Wed May 6 2015 Trip spans 8 days
Sun Country Air
Sun Country Air
BOS
7:35a
SEA
3:15p
7h 40m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Mon May 4 2015 Return: Tue May 5 2015 Trip spans 2 days
Sun Country Air
Sun Country Air
BOS
7:45a
SEA
3:25p
7h 40m
1 stop
SEA
9:05a
BOS
4:15p
7h 10m
1 stop
Depart: Tue May 5 2015 Return: Wed May 6 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: Wed May 6 2015 Return: Fri May 8 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: Fri May 8 2015 Return: Mon May 11 2015 Trip spans 4 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: 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
1:10p
BOS
3:55a
14h 45m
1 stop
Depart: Wed Apr 15 2015 Return: Sat May 16 2015 Trip spans 32 days
JetBlue Airways
JetBlue Airways
BOS
3:09p
SEA
9:22p
6h 13m
nonstop
SEA
6:51p
BOS
12:09a
5h 18m
nonstop
Depart: Tue Apr 28 2015 Return: Wed Apr 29 2015 Trip spans 2 days
JetBlue Airways
JetBlue Airways
BOS
5:00a
SEA
11:12a
6h 12m
nonstop
SEA
7:13p
BOS
12:23a
5h 10m
nonstop
Depart: Sat Apr 25 2015 Return: Tue Apr 28 2015 Trip spans 4 days
JetBlue Airways
JetBlue Airways
BOS
3:09p
SEA
9:22p
6h 13m
nonstop
SEA
9:03a
BOS
2:14p
5h 11m
nonstop
Depart: Thu Apr 30 2015 Return: Sun May 10 2015 Trip spans 11 days
JetBlue Airways
JetBlue Airways
BOS
3:09p
SEA
9:22p
6h 13m
nonstop
SEA
6:56a
BOS
12:26p
5h 30m
nonstop
Depart: Thu May 14 2015 Return: Tue May 19 2015 Trip spans 6 days
American Airlines
American Airlines
BOS
3:15p
SEA
12:36a
9h 21m
1 stop
SEA
7:59p
BOS
3:22a
7h 23m
1 stop
Depart: Thu Apr 23 2015 Return: Tue May 5 2015 Trip spans 13 days
United
United
BOS
3:25a
SEA
1:16p
9h 51m
1 stop
SEA
3:50a
BOS
1:45p
9h 55m
1 stop
Depart: Fri May 1 2015 Return: Wed May 20 2015 Trip spans 20 days
Alaska Airlines
Alaska Airlines
BOS
5:00a
SEA
5:20p
12h 20m
1 stop
SEA
7:10a
BOS
5:41p
10h 31m
1 stop
Depart: Mon May 11 2015 Return: Tue May 12 2015 Trip spans 2 days
Virgin America
Virgin America
BOS
5:00a
SEA
3:55p
10h 55m
1 stop
SEA
3:00a
BOS
2:55p
11h 55m
1 stop
Depart: Tue Apr 14 2015 Return: Wed Apr 15 2015 Trip spans 2 days
American Airlines
American Airlines
BOS
1:00a
SEA
9:05a
8h 05m
1 stop
SEA
1:00a
BOS
8:13a
7h 13m
1 stop
Depart: Fri Apr 24 2015 Return: Tue Apr 28 2015 Trip spans 5 days
Delta
Delta
BOS
2:15a
SEA
10:20a
8h 05m
1 stop
SEA
5:55p
BOS
1:22a
7h 27m
1 stop
Direct flights BOS to SEA on Delta
Flight # Depart BOS Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9238 8:00 am 11:13 am May 6 - May 6
9238 8:00 am 11:13 am May 3 - May 10
9238 8:00 am 11:21 am Apr 5 - May 2
7482 6:55 pm 10:07 pm May 3 - May 10
7482 6:55 pm 10:07 pm May 4 - May 4
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 5 - Apr 27
Airports
Origin

Boston
$260
Destination

Seattle
$260