Airlines operating on route
Starting at $115
Starting at $122
Starting at $138
Starting at $140
Starting at $144
Starting at $145
Helping travelers to find the best flight offers
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Seattle to Boston. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
Starting at $115
Starting at $122
Starting at $138
Starting at $140
Starting at $144
Starting at $145
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Seattle to Boston:
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Seattle to Boston
JetBlue Airways
Every day
Starting at $296
Seattle — Boston
06/19/2025
Departure date
Direct flight
B6198
Starting at $258
Seattle — Boston
07/08/2025
Departure date
Direct flight
AS536
Starting at $239
Seattle — Boston
08/31/2025
Departure date
Direct flight
AS536
Starting at $216
Seattle — Boston
06/11/2025
Departure date
Direct flight
B6398
Starting at $495
The cheapest flight ticket from Seattle to Boston according to data for the last 48 hours costs $97
Often the best time to buy tickets from Seattle to Boston is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seattle to Boston can be found flying in these months: June.
The fastest flights from Seattle to Boston start from 5 hours 24 minutes in the air.
The following airlines operate direct flights on the route Seattle — Boston: JetBlue Airways, Alaska Airlines
We couldn't find any special offers for flights from Seattle to Boston
The cheapest one-way flight from Seattle to Boston departs on 08/30/2025, is operated by Alaska Airlines and costs $97
The cheapest roundtrip flight from Seattle to Boston departs on 06/15/2025, is operated by Alaska Airlines and costs $268
Fastest flight from Seattle to Boston takes 5h 24m
There are direct flights on this route 1 day a week: Sa
The distance between Seattle and Boston is 3999km (2479 miles). There are 127 direct flights from Seattle to Boston. The time difference between Seattle and Boston is 3h . Flights from Seattle begin at 7:50 AM. The latest flight from Seattle departs at 11:40 PM.
A direct flight is the most convenient and comfortable way to fly from Seattle to Boston, despite the fact that sometimes flights with transfers can cost significantly less.
Below you will find a list of airlines operating flights on the Seattle — Boston route and the starting prices for flights of each specific airline on it.
