Flights from Seattle to Boston

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Seattle to Boston flight comparison made easy

Below you can see the best fares for your route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Boston by changing tabs
Quickest
Cheapest
Spirit Airlines
Spirit Airlines
08 Oct
SEA
8:15 am
Seattle/Tacoma Intl airport
12h 06m
1 Stop
11:21 pm
BOS
Boston Logan Intl airport
Spirit Airlines
22 Oct
BOS
11:50 am
Boston Logan Intl airport
12h 34m
2 Stops
9:24 pm
SEA
Seattle/Tacoma Intl airport
203 USD
Spirit Airlines
Spirit Airlines
05 Nov
SEA
7:30 am
Seattle/Tacoma Intl airport
11h 54m
1 Stop
10:24 pm
BOS
Boston Logan Intl airport
Spirit Airlines
12 Nov
BOS
10:50 am
Boston Logan Intl airport
12h 35m
1 Stop
8:25 pm
SEA
Seattle/Tacoma Intl airport
203 USD
Spirit Airlines
Spirit Airlines
16 Sep
SEA
8:15 am
Seattle/Tacoma Intl airport
12h 06m
1 Stop
11:21 pm
BOS
Boston Logan Intl airport
Spirit Airlines
26 Sep
BOS
2:00 am
Boston Logan Intl airport
9h 59m
1 Stop
8:59 am
SEA
Seattle/Tacoma Intl airport
210 USD
Major Airline
Major Airline
14 Oct
SEA
2:15 pm
Seattle/Tacoma Intl airport
5h 20m
10:35 pm
BOS
Boston Logan Intl airport
Major Airline
16 Oct
BOS
1:55 am
Boston Logan Intl airport
8h 32m
1 Stop
7:27 am
SEA
Seattle/Tacoma Intl airport
226 USD
JetBlue
JetBlue
04 Dec
SEA
3:59 pm
Seattle/Tacoma Intl airport
5h 08m
12:07 am
+1
BOS
Boston Logan Intl airport
JetBlue
11 Dec
BOS
12:00 pm
Boston Logan Intl airport
9h 27m
1 Stop
6:27 pm
SEA
Seattle/Tacoma Intl airport
218 USD
JetBlue
JetBlue
06 Dec
SEA
3:59 pm
Seattle/Tacoma Intl airport
5h 08m
12:07 am
+1
BOS
Boston Logan Intl airport
JetBlue
11 Dec
BOS
12:00 pm
Boston Logan Intl airport
9h 27m
1 Stop
6:27 pm
SEA
Seattle/Tacoma Intl airport
218 USD

How to get the cheapest flight from Seattle to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight for your trip
What is the cheapest month to fly to Boston?
February
The cheapest time of year to fly to Boston from Seattle is February. Most expensive is July
What is the cheapest day to fly to Boston?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday
When is the cheapest time to fly to Boston?
at noon
Seattle to Boston flights are approximately 27% more expensive in the evening than at noon
What is the cheapest airline that flies to Boston?
Frontier
Frontier, Major Airline, and Spirit Airlines are the most popular carriers operating from Seattle to Boston
What is the cheapest route?
Seattle/Tacoma Intl - Boston Logan Intl
Fly from Seattle/Tacoma Intl to Boston Logan Intl for the best Seattle - Boston flight prices
SEA
Seattle/Tacoma Intl
BOS
Boston Logan Intl
When is the cheapest time to book a flight to Boston?
49 days before
The cheapest time to buy a flight from Seattle to Boston is approximately 49 days to departure
60
Days before departure
0

Flight information for Seattle to Boston

Find info about flight duration, direct flights, and airports for your flight from Seattle to Boston
Fastest flight time 5h 19m The fastest flight from Seattle to Boston takes 5h 19m.
Direct flights Every day Direct flights go from Seattle to Boston every day.
Airports in Boston 1 airport There is 1 airport near Boston: Boston Logan Intl (BOS)

Alternative routes for Seattle to Boston

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Seattle to Providence
Fastest flight time
6h 48m
Cheapest price
198 USD
Portland to Boston
Fastest flight time
5h 10m
Cheapest price
237 USD
Portland to Providence
Fastest flight time
7h 13m
Cheapest price
264 USD
Seattle to Islip
Fastest flight time
7h 33m
Cheapest price
341 USD
View more

Flights from Seattle to:

Flights to Boston from:

  • Seattle
  • Washington
  • United States
  • North America