Find Deals on Flights from Seattle/Tacoma Intl to Boston Logan International (SEA - BOS)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
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/Tacoma Intl to Boston Logan International

(Round-trip)
Depart: Tue Feb 9 2016 Return: Tue Feb 23 2016 Trip spans 15 days
United
United
SEA
9:11a
BOS
4:24p
7h 13m
1 stop
BOS
12:33a
SEA
9:45a
9h 12m
1 stop
Depart: Mon Feb 8 2016 Return: Tue Feb 23 2016 Trip spans 16 days
United
United
SEA
8:07a
BOS
3:58p
7h 51m
1 stop
BOS
12:33a
SEA
9:45a
9h 12m
1 stop
Depart: Wed Feb 10 2016 Return: Mon Feb 22 2016 Trip spans 13 days
United
United
SEA
9:11a
BOS
4:24p
7h 13m
1 stop
BOS
9:15a
SEA
8:41p
11h 26m
1 stop
Depart: Sun Feb 7 2016 Return: Mon Feb 22 2016 Trip spans 16 days
United
United
SEA
5:58a
BOS
1:55p
7h 57m
1 stop
BOS
1:10p
SEA
11:13p
10h 03m
1 stop
Depart: Mon Feb 22 2016 Return: Mon Feb 29 2016 Trip spans 8 days
JetBlue
JetBlue
SEA
6:26p
BOS
11:32p
5h 06m
nonstop
BOS
2:15p
SEA
8:35p
6h 20m
nonstop
Depart: Tue Feb 23 2016 Return: Sat Feb 27 2016 Trip spans 5 days
JetBlue
JetBlue
SEA
6:26p
BOS
11:32p
5h 06m
nonstop
BOS
2:15p
SEA
8:35p
6h 20m
nonstop
Depart: Sat Feb 27 2016 Return: Sun Feb 28 2016 Trip spans 2 days
JetBlue
JetBlue
SEA
6:26p
BOS
11:32p
5h 06m
nonstop
BOS
3:39a
SEA
9:59a
6h 20m
nonstop
Depart: Tue Mar 22 2016 Return: Wed Mar 23 2016 Trip spans 2 days
JetBlue
JetBlue
SEA
7:23p
BOS
12:31a
5h 08m
nonstop
BOS
4:37a
SEA
10:52a
6h 15m
nonstop
Depart: Thu Feb 25 2016 Return: Wed Mar 2 2016 Trip spans 7 days
Alaska Airlines
Alaska Airlines
SEA
4:25a
BOS
9:45a
5h 20m
nonstop
BOS
1:45p
SEA
8:20p
6h 35m
nonstop
Depart: Fri Feb 26 2016 Return: Sun Feb 28 2016 Trip spans 3 days
JetBlue
JetBlue
SEA
6:26p
BOS
11:32p
5h 06m
nonstop
BOS
2:15p
SEA
8:35p
6h 20m
nonstop
Depart: Sun Feb 28 2016 Return: Mon Feb 29 2016 Trip spans 2 days
JetBlue
JetBlue
SEA
6:26p
BOS
11:32p
5h 06m
nonstop
BOS
2:15p
SEA
8:35p
6h 20m
nonstop
Depart: Mon Feb 29 2016 Return: Tue Mar 1 2016 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
4:25p
BOS
9:45p
5h 20m
nonstop
BOS
1:45p
SEA
8:20p
6h 35m
nonstop
Depart: Tue Mar 1 2016 Return: Wed Mar 2 2016 Trip spans 2 days
JetBlue
JetBlue
SEA
7:45a
BOS
12:55p
5h 10m
nonstop
BOS
3:37a
SEA
9:52a
6h 15m
nonstop
Depart: Wed Mar 2 2016 Return: Fri Mar 4 2016 Trip spans 3 days
Alaska Airlines
Alaska Airlines
SEA
4:25p
BOS
9:45p
5h 20m
nonstop
BOS
2:00a
SEA
8:40a
6h 40m
nonstop
Depart: Thu Mar 3 2016 Return: Sun Mar 6 2016 Trip spans 4 days
JetBlue
JetBlue
SEA
6:23p
BOS
11:31p
5h 08m
nonstop
BOS
2:15p
SEA
8:32p
6h 17m
nonstop
Depart: Fri Mar 4 2016 Return: Sun Mar 6 2016 Trip spans 3 days
JetBlue
JetBlue
SEA
6:23p
BOS
11:31p
5h 08m
nonstop
BOS
2:15p
SEA
8:32p
6h 17m
nonstop
Depart: Sat Mar 5 2016 Return: Wed Mar 9 2016 Trip spans 5 days
JetBlue
JetBlue
SEA
6:23p
BOS
11:31p
5h 08m
nonstop
BOS
2:15p
SEA
8:32p
6h 17m
nonstop
Depart: Sun Mar 6 2016 Return: Tue Mar 15 2016 Trip spans 9 days
Alaska Airlines
Alaska Airlines
SEA
4:25p
BOS
9:45p
5h 20m
nonstop
BOS
3:00a
SEA
9:25a
6h 25m
nonstop
Depart: Tue Aug 23 2016 Return: Mon Aug 29 2016 Trip spans 7 days
Virgin America
Virgin America
SEA
1:00p
BOS
11:10p
10h 10m
1 stop
BOS
6:15a
SEA
3:15p
9h 00m
1 stop
Depart: Sun Apr 24 2016 Return: Tue Apr 26 2016 Trip spans 3 days
Delta
Delta
SEA
7:40p
BOS
3:21a
7h 41m
1 stop
BOS
3:05a
SEA
9:38a
6h 33m
nonstop
Direct flights SEA to BOS on American Airlines
Flight # Depart SEA Arrive BOS Sun Mon Tue Wed Thu Fri Sat Valid Between
7088 9:25 am 5:40 pm Mar 13 - Apr 8
7088 9:25 am 5:45 pm Mar 8 - Mar 8
7088 9:25 am 5:45 pm Feb 28 - Mar 7
7088 9:25 am 5:45 pm Feb 27 - Feb 27
7088 9:25 am 5:45 pm Feb 14 - Feb 26
7088 9:25 am 5:43 pm Feb 6 - Feb 13
7088 9:25 am 5:45 pm Mar 9 - Mar 12
7103 8:30 pm 5:44 am Mar 12 - Mar 12
7103 9:20 pm 5:34 am Mar 13 - Mar 27
7103 9:25 pm 5:45 am Feb 14 - Mar 11
* 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 prices, so it’s not possible for us to guarantee what other companies are selling.

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Why aren’t prices accurate 100% of the time?
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Airports
Origin

Seattle
$205
Destination

Boston
$205