Flights from Seattle to Boston

Depart
Return
Any month
Compare vs. momondo |

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
United Airlines
United Airlines
SEA
5:27 am
Seattle/Tacoma Intl airport
9h 23m
1 Stop
5:50 pm
BOS
Boston Logan International airport
United Airlines
BOS
1:00 pm
Boston Logan International airport
9h 23m
1 Stop
7:23 pm
SEA
Seattle/Tacoma Intl airport
201 USD
Spirit Airlines
Spirit Airlines
SEA
10:20 am
Seattle/Tacoma Intl airport
9h 30m
1 Stop
10:50 pm
BOS
Boston Logan International airport
Spirit Airlines
BOS
1:45 am
Boston Logan International airport
8h 23m
1 Stop
7:08 am
SEA
Seattle/Tacoma Intl airport
208 USD
American Airlines
American Airlines
SEA
2:18 pm
Seattle/Tacoma Intl airport
7h 46m
1 Stop
1:04 am
+1
BOS
Boston Logan International airport
American Airlines
BOS
12:45 am
Boston Logan International airport
8h 23m
1 Stop
6:08 am
SEA
Seattle/Tacoma Intl airport
210 USD
JetBlue
JetBlue
SEA
4:51 pm
Seattle/Tacoma Intl airport
5h 16m
1:07 am
+1
BOS
Boston Logan International airport
JetBlue
BOS
3:16 pm
Boston Logan International airport
6h 25m
6:41 pm
SEA
Seattle/Tacoma Intl airport
237 USD
JetBlue
JetBlue
SEA
4:51 pm
Seattle/Tacoma Intl airport
5h 16m
1:07 am
+1
BOS
Boston Logan International airport
JetBlue
BOS
3:16 pm
Boston Logan International airport
6h 25m
6:41 pm
SEA
Seattle/Tacoma Intl airport
237 USD
Alaska Airlines
Alaska Airlines
SEA
2:25 pm
Seattle/Tacoma Intl airport
5h 20m
10:45 pm
BOS
Boston Logan International airport
Alaska Airlines
BOS
1:45 am
Boston Logan International airport
8h 23m
1 Stop
7:08 am
SEA
Seattle/Tacoma Intl airport
221 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
CHEAPEST MONTH TO FLY
January
The cheapest time of year to fly to Boston from Seattle is January. Most expensive is July
CHEAPEST DAY TO FLY
Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
CHEAPEST TIME TO FLY
at Noon
Seattle to Boston flights are approximately 27% more expensive in the Evening than at Noon
CHEAPEST AIRLINE
Frontier
Frontier, Sun Country Air, and Spirit Airlines are the most popular carriers operating from Seattle to Boston
CHEAPEST ROUTE
Seattle/Tacoma Intl - Boston Logan International
Fly from Seattle/Tacoma Intl to Boston Logan International for the best Seattle - Boston flight prices
SEA
Seattle/Tacoma Intl
BOS
Boston Logan International
CHEAPEST TIME TO BOOK
38 days before
The cheapest time to buy a flight from Seattle to Boston is approximately 38 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 8m
The fastest flight from Seattle to Boston takes 5h 8m.
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 International (BOS)

Cost comparison between Seattle and Boston

Compare the costs of everyday items in Seattle and Boston
Food
Inexpensive restaurant
15 USD
Seattle
15 USD
Boston
Fast food
McDonald's meal
9 USD
Seattle
7.92 USD
Boston
Soft drink
0.33 liter
2.01 USD
Seattle
1.90 USD
Boston
Coffee
Cappuccino
4.31 USD
Seattle
3.91 USD
Boston
Public transport
One-way ticket
2.73 USD
Seattle
2.48 USD
Boston

Flights from Seattle to:

Flights to Boston from:

  • Seattle
  • Washington
  • United States
  • North America