Cheap Flights from Seattle (SEA) to Boston (BOS) from £60

Cheap Flights from Seattle (SEA) to Boston (BOS)

Prices were available within the past 7 days and starts at £60 for one-way flights and £119 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Alaska Airlines
Alaska Airlines
Alaska Airlines
United
JetBlue Airways
Alaska Airlines
JetBlue Airways
Alaska Airlines
United
JetBlue Airways
Alaska Airlines
Alaska Airlines
JetBlue Airways
Alaska Airlines
Alaska Airlines
JetBlue Airways
JetBlue Airways
Alaska Airlines
Alaska Airlines

Flights from Seattle to Boston: Reviews from verified customers

7 Nov 2016

My favourite airline in America so far

A verified traveller
Seattle to Boston · Alaska Airlines
Flight from Seattle to Boston route information
Origin AirportSeattle - Tacoma Intl.
Destination AirportLogan Intl.
Airlines ServingAlaska Airlines, JetBlue Airways, United
Flight Price£118
Distance3980 km

Frequently asked questions

Compare flights from Seattle to Boston easily and book in confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Boston. Operating between them 8 flights per day, 20 airlines cover the route. And Qatar Airways, KLM, JAL, Alaska Airlines, Air France, Delta Air Lines fly direct, getting you to Logan Intl. in just 11hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to Logan Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to Logan Intl. (BOS) 

The easiest way to view the best deals on flights from Seattle to Boston today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to Logan Intl. start at just £119 and range up to £159.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seattle and Boston
  • booking your flight during January , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seattle to Boston flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to Logan Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.