Find Deals on Flights from Seattle to Boston Logan International

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 Seattle to Boston Logan International

(Round-trip)
Depart: Fri Jan 6 2017 Return: Sun Jan 8 2017 Trip spans 3 days
Delta
Delta
SEA
6:25a
BOS
11:55a
5h 30m
nonstop
BOS
2:10a
SEA
8:42a
6h 32m
nonstop
Depart: Sat Jan 7 2017 Return: Mon Jan 9 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
1:12p
BOS
6:23p
5h 11m
nonstop
BOS
8:58a
SEA
3:21p
6h 23m
nonstop
Depart: Wed Jan 11 2017 Return: Sat Jan 14 2017 Trip spans 4 days
JetBlue
JetBlue
SEA
7:13a
BOS
12:22p
5h 09m
nonstop
BOS
1:58p
SEA
8:21p
6h 23m
nonstop
Depart: Tue Jan 31 2017 Return: Mon Feb 6 2017 Trip spans 7 days
United
United
SEA
8:45a
BOS
4:13p
7h 28m
1 stop
BOS
12:45a
SEA
9:24a
8h 39m
1 stop
Depart: Wed Feb 8 2017 Return: Thu Feb 9 2017 Trip spans 2 days
American Airlines
American Airlines
SEA
6:15a
BOS
3:05p
8h 50m
1 stop
BOS
1:00a
SEA
12:00p
11h 00m
1 stop
Depart: Sun Dec 4 2016 Return: Fri Dec 9 2016 Trip spans 6 days
Alaska Airlines
Alaska Airlines
SEA
4:25p
BOS
9:36p
5h 11m
nonstop
BOS
2:00a
SEA
8:40a
6h 40m
nonstop
Depart: Wed Dec 14 2016 Return: Fri Dec 16 2016 Trip spans 3 days
Sun Country Air
Sun Country Air
SEA
8:20a
BOS
3:14p
6h 54m
1 stop
BOS
1:55a
SEA
10:30a
8h 35m
1 stop
Depart: Mon Jan 9 2017 Return: Wed Jan 11 2017 Trip spans 3 days
Delta
Delta
SEA
6:45a
BOS
12:10p
5h 25m
nonstop
BOS
2:10a
SEA
8:42a
6h 32m
nonstop
Depart: Fri Feb 3 2017 Return: Sun Feb 5 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
1:14p
BOS
6:25p
5h 11m
nonstop
BOS
8:58a
SEA
3:23p
6h 25m
nonstop
Depart: Sun Jan 8 2017 Return: Tue Jan 10 2017 Trip spans 3 days
United
United
SEA
5:30p
BOS
1:55a
8h 25m
1 stop
BOS
12:45a
SEA
9:09a
8h 24m
1 stop
Depart: Sat Dec 24 2016 Return: Sun Jan 8 2017 Trip spans 16 days
JetBlue
JetBlue
SEA
6:35p
BOS
11:44p
5h 09m
nonstop
BOS
1:58p
SEA
8:21p
6h 23m
nonstop
Depart: Thu Jan 12 2017 Return: Sat Jan 14 2017 Trip spans 3 days
Delta
Delta
SEA
6:45a
BOS
12:10p
5h 25m
nonstop
BOS
2:10a
SEA
8:40a
6h 30m
nonstop
Depart: Tue Jan 10 2017 Return: Thu Jan 12 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
7:15a
BOS
4:55p
9h 40m
1 stop
BOS
9:15p
SEA
9:30a
12h 15m
1 stop
Depart: Tue Jan 17 2017 Return: Tue Jan 31 2017 Trip spans 15 days
United
United
SEA
1:21a
BOS
8:52a
7h 31m
1 stop
BOS
12:45a
SEA
9:09a
8h 24m
1 stop
Depart: Wed Feb 15 2017 Return: Tue Feb 28 2017 Trip spans 14 days
American Airlines
American Airlines
SEA
3:15a
BOS
12:25p
9h 10m
1 stop
BOS
8:15a
SEA
6:52p
10h 37m
1 stop
Depart: Fri Feb 10 2017 Return: Sat Feb 11 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
4:25p
BOS
9:45p
5h 20m
nonstop
BOS
2:00a
SEA
8:40a
6h 40m
nonstop
Depart: Wed Jan 18 2017 Return: Sun Jan 22 2017 Trip spans 5 days
Delta
Delta
SEA
6:45a
BOS
12:10p
5h 25m
nonstop
BOS
2:10a
SEA
8:42a
6h 32m
nonstop
Depart: Tue Feb 7 2017 Return: Thu Feb 9 2017 Trip spans 3 days
JetBlue
JetBlue
SEA
7:13a
BOS
12:22p
5h 09m
nonstop
BOS
6:00a
SEA
12:23p
6h 23m
nonstop
Depart: Thu Dec 8 2016 Return: Thu Dec 15 2016 Trip spans 8 days
Sun Country Air
Sun Country Air
SEA
8:20a
BOS
3:14p
6h 54m
1 stop
BOS
3:55p
SEA
10:30a
18h 35m
1 stop
Depart: Mon Jan 16 2017 Return: Wed Jan 18 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
11:50p
BOS
4:55p
17h 05m
1 stop
BOS
8:55a
SEA
9:30a
24h 35m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

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.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Seattle
$217
Destination

Boston
$217
Airlines Airline reviews

51 travelers who booked a flight from Seattle to Boston rated their chosen airlines with an average of 7.7.

Overall
7.9
Boarding
7.9
Crew
8.7
Comfort
7.6
Food
6.5
Entertainment
6.0