Flights to Dupont from Boston - $90

Popular airlines from Boston to Dupont

Cheap Flights from Boston to Dupont (BOS-SEA)

Prices were available within the past 7 days and start at $90 for one-way flights and $144 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Southwest Airlines
American Airlines
Delta
United
Hawaiian Airlines

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

September is typically the cheapest month to fly

From $155 - $245 per traveler.

Graph displaying average flight prices per month

*Available to One Key members.