Find Deals on Flights from Boston Logan International to Seattle

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Boston Logan International to Seattle

(Round-trip)
Depart: Wed Feb 1 2017 Return: Thu Feb 9 2017 Trip spans 9 days
Major Airline
Major Airline
BOS
9:00p
SEA
3:39a
6h 39m
nonstop
SEA
1:14p
BOS
6:21p
5h 07m
nonstop
Depart: Thu Feb 2 2017 Return: Fri Feb 3 2017 Trip spans 2 days
JetBlue
JetBlue
BOS
1:58p
SEA
8:21p
6h 23m
nonstop
SEA
7:13a
BOS
12:20p
5h 07m
nonstop
Depart: Tue Feb 28 2017 Return: Wed Mar 1 2017 Trip spans 2 days
American Airlines
American Airlines
BOS
8:40a
SEA
8:18p
11h 38m
1 stop
SEA
6:13a
BOS
3:59p
9h 46m
1 stop
Depart: Tue Jan 31 2017 Return: Mon Feb 6 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
BOS
1:50p
SEA
8:29p
6h 39m
nonstop
SEA
4:25p
BOS
9:45p
5h 20m
nonstop
Depart: Fri Mar 3 2017 Return: Sun Mar 5 2017 Trip spans 3 days
Delta
Delta
BOS
2:15a
SEA
8:49a
6h 34m
nonstop
SEA
6:40a
BOS
12:00p
5h 20m
nonstop
Depart: Tue Feb 21 2017 Return: Wed Feb 22 2017 Trip spans 2 days
United
United
BOS
9:36a
SEA
7:44p
10h 08m
1 stop
SEA
8:35a
BOS
4:29p
7h 54m
1 stop
Depart: Sat Jul 15 2017 Return: Sat Aug 5 2017 Trip spans 22 days
Southwest
Southwest
BOS
12:50p
SEA
9:10p
8h 20m
1 stop
SEA
11:25a
BOS
6:50p
7h 25m
1 stop
Depart: Fri Feb 3 2017 Return: Sat Feb 4 2017 Trip spans 2 days
JetBlue
JetBlue
BOS
1:58p
SEA
8:21p
6h 23m
nonstop
SEA
6:14p
BOS
11:21p
5h 07m
nonstop
Depart: Sat Mar 4 2017 Return: Mon Mar 6 2017 Trip spans 3 days
American Airlines
American Airlines
BOS
12:45p
SEA
10:48p
10h 03m
1 stop
SEA
7:20p
BOS
5:36a
10h 16m
1 stop
Depart: Mon Jan 23 2017 Return: Thu Jan 26 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
BOS
1:50p
SEA
8:29p
6h 39m
nonstop
SEA
4:25p
BOS
9:43p
5h 18m
nonstop
Depart: Sat Feb 4 2017 Return: Sun Feb 5 2017 Trip spans 2 days
JetBlue
JetBlue
BOS
1:58p
SEA
8:21p
6h 23m
nonstop
SEA
6:14p
BOS
11:21p
5h 07m
nonstop
Depart: Tue Apr 25 2017 Return: Mon May 1 2017 Trip spans 7 days
American Airlines
American Airlines
BOS
8:30a
SEA
7:55p
11h 25m
1 stop
SEA
7:59p
BOS
5:10a
9h 11m
1 stop
Depart: Tue Jan 24 2017 Return: Thu Jan 26 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
BOS
2:00a
SEA
8:39a
6h 39m
nonstop
SEA
4:25p
BOS
9:43p
5h 18m
nonstop
Depart: Sun Feb 5 2017 Return: Mon Feb 6 2017 Trip spans 2 days
JetBlue
JetBlue
BOS
1:58p
SEA
8:21p
6h 23m
nonstop
SEA
6:14p
BOS
11:21p
5h 07m
nonstop
Depart: Thu Jan 26 2017 Return: Mon Jan 30 2017 Trip spans 5 days
Major Airline
Major Airline
BOS
12:00a
SEA
7:58a
7h 58m
nonstop
SEA
8:00a
BOS
9:58a
1h 58m
nonstop
Depart: Thu Apr 6 2017 Return: Tue Apr 18 2017 Trip spans 13 days
Delta
Delta
BOS
3:15a
SEA
9:45a
6h 30m
nonstop
SEA
7:30a
BOS
12:55p
5h 25m
nonstop
Depart: Tue May 2 2017 Return: Tue May 9 2017 Trip spans 8 days
American Airlines
American Airlines
BOS
8:00a
SEA
6:39p
10h 39m
1 stop
SEA
7:13a
BOS
5:20p
10h 07m
1 stop
Depart: Wed Jan 25 2017 Return: Thu Feb 2 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
BOS
1:50p
SEA
8:29p
6h 39m
nonstop
SEA
4:25p
BOS
9:43p
5h 18m
nonstop
Depart: Mon Feb 6 2017 Return: Tue Feb 7 2017 Trip spans 2 days
JetBlue
JetBlue
BOS
1:58p
SEA
8:21p
6h 23m
nonstop
SEA
7:13a
BOS
12:20p
5h 07m
nonstop
Depart: Sat Jan 28 2017 Return: Mon Jan 30 2017 Trip spans 3 days
Major Airline
Major Airline
BOS
12:00a
SEA
7:58a
7h 58m
nonstop
SEA
8:00a
BOS
9:58a
1h 58m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Boston
$227
Destination

Seattle
$227
Airlines Airline reviews

63 travelers who booked a flight from Boston to Seattle rated their chosen airlines with an average of 8.0.

Overall
8.3
Boarding
8.6
Crew
8.7
Comfort
7.9
Food
7.1
Entertainment
6.8