Cheap flights from Seattle to Boston
Know your dates, get live prices in seconds:
We work with more than 300 partners to bring you better travel deals
How to find the cheapest flight from
Seattle (SEA) to Boston (BOS)
What is the cheapest day to fly round-trip from Seattle to Boston?
Wednesday flights are found to be more expensive to fly from Seattle to Boston. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Boston.
How far in advance should I book a flight from Seattle to Boston?
Travellers have found it’s best to book a flight 34 days in advance to save up to 84% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 34 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Boston 1-2 weeks in advance for as low as C$ 658, or C$ 899 for flights within the next 24 hours.
What is the cheapest month to fly from Seattle to Boston?
February can be a great time to fly to Boston from Seattle with a flight ticket averaging about C$ 355. Cheapflights users have found deals in the month of February for as cheap as C$ 238. The most expensive prices can be found in the month of July.
Cheap flights from Seattle to Boston in July, August 2020
Seattle to Boston 2020 flight deals
Direct flights to Boston from Seattle
Last minute flights from Seattle to Boston
One-way flights to Boston from Seattle
The cheapest one-way flights from Seattle to Boston
Related info for your journey
Useful info, stats and facts about Seattle to Boston flights.
Destination information for Boston
Things to know before you go. Useful info for your trip from Seattle to Boston
Popular flight searches
Check out other popular destinations found by fellow travellers
Hourly flight availability from Seattle to Boston
|Morning 6 AM to noon||52% of flight departures|
|Afternoon Noon to 6 PM||32% of flight departures|
|Evening 6 PM to midnight||15% of flight departures|
|Early morning Midnight to 6 AM||1% of flight departures|