Browse Origins:
Browse Destinations:

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: Mon Feb 9 2015 Return: Tue Mar 17 2015 Trip spans 36 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
5:35a
BOS
10:54a
5h 19m
nonstop
Depart: Tue Feb 10 2015 Return: Tue Mar 17 2015 Trip spans 35 days
Alaska Airlines
Alaska Airlines
BOS
2:40a
SEA
9:10a
6h 30m
nonstop
SEA
5:35a
BOS
10:54a
5h 19m
nonstop
Depart: Wed Feb 18 2015 Return: Wed Feb 25 2015 Trip spans 8 days
American Airlines
American Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Tue Feb 24 2015 Return: Thu Feb 26 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
BOS
2:40a
SEA
9:10a
6h 30m
nonstop
SEA
4:15a
BOS
9:35a
5h 20m
nonstop
Depart: Thu Feb 19 2015 Return: Wed Feb 25 2015 Trip spans 7 days
American Airlines
American Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Fri Feb 20 2015 Return: Wed Feb 25 2015 Trip spans 6 days
American Airlines
American Airlines
BOS
2:40a
SEA
9:10a
6h 30m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Mon Feb 23 2015 Return: Thu Feb 26 2015 Trip spans 4 days
American Airlines
American Airlines
BOS
2:40a
SEA
9:10a
6h 30m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Thu Feb 26 2015 Return: Mon Mar 2 2015 Trip spans 5 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Fri Feb 27 2015 Return: Wed Mar 4 2015 Trip spans 6 days
American Airlines
American Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Sat Feb 28 2015 Return: Wed Mar 4 2015 Trip spans 5 days
American Airlines
American Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
5:10p
BOS
10:20p
5h 10m
nonstop
Depart: Mon Mar 2 2015 Return: Tue Mar 10 2015 Trip spans 8 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
6:20p
BOS
11:38p
5h 18m
nonstop
Depart: Tue Mar 3 2015 Return: Thu Mar 5 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
BOS
2:40a
SEA
9:10a
6h 30m
nonstop
SEA
4:15a
BOS
9:35a
5h 20m
nonstop
Depart: Wed Mar 4 2015 Return: Tue Mar 10 2015 Trip spans 6 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
6:20p
BOS
11:38p
5h 18m
nonstop
Depart: Thu Mar 5 2015 Return: Mon Mar 9 2015 Trip spans 4 days
American Airlines
American Airlines
BOS
2:40a
SEA
9:10a
6h 30m
nonstop
SEA
6:20p
BOS
11:38p
5h 18m
nonstop
Depart: Sat Mar 7 2015 Return: Tue Mar 10 2015 Trip spans 3 days
Alaska Airlines
Alaska Airlines
BOS
1:40p
SEA
8:09p
6h 29m
nonstop
SEA
6:20p
BOS
11:38p
5h 18m
nonstop
Depart: Fri Mar 6 2015 Return: Mon Mar 9 2015 Trip spans 3 days
JetBlue Airways
JetBlue Airways
BOS
3:55a
SEA
10:07a
6h 12m
nonstop
SEA
6:59p
BOS
12:09a
5h 10m
nonstop
Depart: Thu Apr 9 2015 Return: Tue Apr 21 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 Mar 13 2015 Return: Wed Mar 18 2015 Trip spans 6 days
Virgin America
Virgin America
BOS
3:20a
SEA
2:50p
11h 30m
1 stop
SEA
3:40p
BOS
12:44a
9h 04m
1 stop
Depart: Sat Feb 21 2015 Return: Mon Feb 23 2015 Trip spans 3 days
Delta
Delta
BOS
12:45a
SEA
8:52a
8h 07m
1 stop
SEA
5:55p
BOS
3:41a
9h 46m
1 stop
Depart: Sun Feb 1 2015 Return: Tue Feb 10 2015 Trip spans 10 days
US Airways
US Airways
BOS
9:30a
SEA
7:13p
9h 43m
1 stop
SEA
12:15a
BOS
8:54a
8h 39m
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 11:07 am Jan 27 - Feb 6
9238 7:40 am 11:10 am Mar 7 - Mar 7
9238 7:40 am 11:10 am Mar 6 - Mar 6
9238 7:40 am 11:10 am Feb 27 - Feb 28
9238 7:40 am 11:10 am Feb 24 - Mar 5
9238 7:40 am 11:10 am Feb 19 - Feb 23
9238 7:40 am 11:10 am Feb 10 - Feb 17
9238 7:40 am 11:10 am Feb 7 - Feb 16
7482 6:40 pm 10:14 pm Jan 27 - Feb 5
7482 6:40 pm 10:09 pm Feb 18 - Feb 18
7482 6:40 pm 10:09 pm Mar 5 - Mar 5
7482 6:40 pm 10:09 pm Mar 4 - Mar 7
7482 6:40 pm 10:09 pm Feb 19 - Mar 3
7482 6:40 pm 10:09 pm Feb 8 - Feb 17
7482 6:40 pm 10:14 pm Feb 7 - Feb 7
7482 6:40 pm 10:14 pm Feb 6 - Feb 6
Airports
Origin

Boston
$282
Destination

Seattle
$282