$163 Economy One-way to Seattle (BOS-SEA) in Dec from Boston

Cheap economy Flights: BOS to SEA in December - Route 3

Starting from $420

Flight Options & Prices:

Direct Flights: From $444 - Fastest option with no layovers
One-Stop Flights: From $444 - Good value with one connection
Multi-Stop Flights: From $420 - Cheapest option with multiple connections

Book your economy class flight from Boston (BOS) to Seattle (SEA)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Best Flights starting from $163

Mon, Dec 14

One-way

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Fri, Dec 4

One-way

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Sun, Dec 27

One-way

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Flight Options & Prices:

Cheap economy Flights: BOS to SEA in December - Route 3

Flight Options & Prices:

Why Choose Economy Class Flights from Boston (BOS) to Seattle (SEA)?