US$779 – Cheap flights to Boston from Seattle – First Class (United Airlines)

Written and Published October 16, 2020

<cur_name>US$</cur_name><cur_val>779</cur_val> &#8211; <span id="translate">Cheap flights to</span> <span id="translate">Boston</span> <span id="translate">from</span> <span id="translate">Seattle</span> &#8211; <span id="translate">First Class</span> (United Airlines)
Airline: United Airlines

Airfares starting at:
US$779

Typical Price: US$ 1402 (You are saving 44% percent or US$ 623 per ticket)!

Cabin Class: First Class

Flights available from: Seattle (SEA)

Flights available to: Boston (BOS)

Example Booking Link: Please click and wait for search to finish

Travel Dates (Outbound): June 15 2021

Travel Dates (Inbound): June 29 2021

Compare to prices for these dates:


Earn miles with all Star Alliance Partners.


There are possibly more airports in the same region that work for similar prices. If you are interested in the deal test your local airports.

How to Book:

Start with the booking link provided first. Then try your dates and airports.

Please note that this fare was valid and bookable at the time of publishing. Fare availability changes quickly and may have changed since.

Cheap flights to Boston - get the best deals now. US$779 with airlines such as United Airlines in First Class. Get the best flight deals and promotions for your trip to BOS from SEA below!