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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: Thu Jan 22 2015 Return: Sun Jan 25 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
5:10p
BOS
10:25p
5h 15m
nonstop
Depart: Fri Jan 23 2015 Return: Sun Jan 25 2015 Trip spans 3 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
5:10p
BOS
10:25p
5h 15m
nonstop
Depart: Sat Jan 24 2015 Return: Sun Jan 25 2015 Trip spans 2 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
5:10p
BOS
10:25p
5h 15m
nonstop
Depart: Mon Jan 26 2015 Return: Fri Jan 30 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
4:20a
BOS
9:40a
5h 20m
nonstop
Depart: Tue Jan 27 2015 Return: Fri Jan 30 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
4:20a
BOS
9:40a
5h 20m
nonstop
Depart: Wed Jan 28 2015 Return: Sun Feb 1 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
5:10p
BOS
10:25p
5h 15m
nonstop
Depart: Thu Jan 29 2015 Return: Sun Feb 1 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
5:10p
BOS
10:25p
5h 15m
nonstop
Depart: Fri Jan 30 2015 Return: Mon Feb 2 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
BOS
2:35a
SEA
9:07a
6h 32m
nonstop
SEA
5:10p
BOS
10:25p
5h 15m
nonstop
Depart: Sat Jan 31 2015 Return: Tue Feb 3 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
BOS
2:35a
SEA
9:07a
6h 32m
nonstop
SEA
4:20a
BOS
9:40a
5h 20m
nonstop
Depart: Sun Feb 1 2015 Return: Wed Feb 4 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
4:20a
BOS
9:40a
5h 20m
nonstop
Depart: Mon Feb 2 2015 Return: Sun Feb 8 2015 Trip spans 7 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Tue Feb 3 2015 Return: Sun Feb 8 2015 Trip spans 6 days
Alaska Airlines
Alaska Airlines
BOS
2:35a
SEA
9:07a
6h 32m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Fri Feb 6 2015 Return: Sun Feb 8 2015 Trip spans 3 days
Alaska Airlines
Alaska Airlines
BOS
2:35a
SEA
9:07a
6h 32m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Sun Jan 25 2015 Return: Mon Feb 2 2015 Trip spans 9 days
Multiple Airlines
Multiple Airlines
BOS
1:55p
SEA
8:14p
6h 19m
nonstop
SEA
5:10p
BOS
10:25p
5h 15m
nonstop
Depart: Wed Feb 4 2015 Return: Tue Feb 10 2015 Trip spans 7 days
Multiple Airlines
Multiple Airlines
BOS
1:40p
SEA
8:14p
6h 34m
nonstop
SEA
9:13a
BOS
2:14p
5h 01m
nonstop
Depart: Sun Jan 11 2015 Return: Thu Jan 22 2015 Trip spans 12 days
JetBlue Airways
JetBlue Airways
BOS
1:55p
SEA
8:14p
6h 19m
nonstop
SEA
6:05p
BOS
11:11p
5h 06m
nonstop
Depart: Fri Feb 27 2015 Return: Mon Mar 2 2015 Trip spans 4 days
American Airlines
American Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Thu Apr 9 2015 Return: Tue Apr 14 2015 Trip spans 6 days
United
United
BOS
2:00a
SEA
9:46a
7h 46m
1 stop
SEA
9:45a
BOS
4:59p
7h 14m
1 stop
Depart: Sun Feb 22 2015 Return: Mon Mar 2 2015 Trip spans 9 days
Delta
Delta
BOS
7:33a
SEA
3:35p
8h 02m
1 stop
SEA
1:45a
BOS
10:52a
9h 07m
1 stop
Depart: Tue Dec 30 2014 Return: Mon Jan 5 2015 Trip spans 7 days
US Airways
US Airways
BOS
1:30p
SEA
9:59p
8h 29m
1 stop
SEA
12:55p
BOS
9:31p
8h 36m
1 stop
Change your search
Direct flights BOS to SEA on Delta
Flight # Depart BOS Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9238 7:35 am 11:15 am Jan 8 - Jan 10
9238 7:35 am 11:15 am Dec 23 - Jan 6
9238 7:35 am 11:07 am Jan 12 - Feb 6
7482 6:40 pm 10:15 pm Dec 23 - Jan 10
7482 6:40 pm 10:14 pm Jan 11 - Feb 5
Airports
Origin

Boston
$277
Destination

Seattle
$277