$163 Cheap American Airlines flights Seattle (SEA) to Boston (BOS)

View $163 flight on Mon, Jan 12, 2026Opens in a new window

$163 Cheap American Airlines flights Seattle (SEA) to Boston (BOS)

Prices were available within the past 7 days and start at $163 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Seattle (SEA) to Boston (BOS)

March is typically the cheapest month to fly

From $157 - $307 per traveler.
Flights from Seattle (SEA) to Boston (BOS)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Logan Intl.
Distance
3980 km
Average flight time
9 hours 18 mins