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 Aug 16 2016 Return: Mon Aug 22 2016 Trip spans 7 days
Depart: Fri Oct 28 2016 Return: Sat Oct 29 2016 Trip spans 2 days
Depart: Sun Oct 2 2016 Return: Thu Oct 13 2016 Trip spans 12 days
Depart: Wed Oct 19 2016 Return: Sun Oct 30 2016 Trip spans 12 days
Depart: Tue Jul 26 2016 Return: Thu Jul 28 2016 Trip spans 3 days
Depart: Tue Aug 30 2016 Return: Mon Sep 5 2016 Trip spans 7 days
Depart: Thu Sep 29 2016 Return: Fri Sep 30 2016 Trip spans 2 days
Depart: Wed Jan 25 2017 Return: Thu Jan 26 2017 Trip spans 2 days
Depart: Mon Sep 19 2016 Return: Tue Sep 27 2016 Trip spans 9 days
Depart: Sat Oct 8 2016 Return: Thu Oct 13 2016 Trip spans 6 days
Depart: Fri Oct 21 2016 Return: Sat Oct 29 2016 Trip spans 9 days
Depart: Wed Aug 31 2016 Return: Mon Sep 5 2016 Trip spans 6 days
Depart: Fri Sep 9 2016 Return: Sun Sep 11 2016 Trip spans 3 days
Depart: Tue Aug 9 2016 Return: Wed Aug 17 2016 Trip spans 9 days
Depart: Sat Sep 24 2016 Return: Tue Sep 27 2016 Trip spans 4 days
Depart: Sun Oct 9 2016 Return: Fri Oct 14 2016 Trip spans 6 days
Depart: Sat Oct 29 2016 Return: Sun Oct 30 2016 Trip spans 2 days
Depart: Fri Sep 30 2016 Return: Thu Oct 6 2016 Trip spans 7 days
Depart: Tue Sep 13 2016 Return: Fri Sep 16 2016 Trip spans 4 days
Depart: Thu Sep 1 2016 Return: Sun Sep 4 2016 Trip spans 4 days
Direct flights SEA to BOS on Delta
Flight # Depart SEA Arrive BOS Sun Mon Tue Wed Thu Fri Sat Valid Between
669 11:05 am 7:40 pm Sep 1 - Sep 9
669 11:20 am 7:51 pm Aug 28 - Aug 29
669 11:20 am 7:51 pm Aug 31 - Aug 31
669 11:20 am 7:50 pm Aug 27 - Aug 27
2635 12:00 pm 8:29 pm Jul 24 - Aug 8
2635 12:00 pm 8:29 pm Aug 9 - Aug 10
2635 12:00 pm 8:29 pm Aug 11 - Aug 26
* 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.

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Airports
Origin

Seattle
$296
Destination

Boston
$296
Airlines Airline reviews

35 travelers who booked a flight from Seattle to Boston rated their chosen airlines with an average of 8.2.

Overall
8.4
Boarding
8.4
Crew
9.2
Comfort
8.3
Food
6.9
Entertainment
6.2