Cheap flights from Boston to Seattle

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Travelers usually depart from Logan International, Boston South Station, Boston, MA - Back Bay Station, Boston, MA - Copley Square, or Boston, MA - LAZ parking lot when they travel from Boston to Seattle. Book your trip to arrive at Seattle–Tacoma International, Seattle, WA - King Street Station, Seattle, WA - Greyhound Station, Seattle, WA - Poly Clinic, or Seattle, WA-Harborview Med . The distance between Boston and Seattle is 4009 km. The most popular airlines for this route are United Airlines, Delta Air Lines, Alaska Airlines, American Airlines, and WN. Boston and Seattle have 189 direct flights per week.

Weekly flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Number of flights39302431-3332

Fly direct with

Alaska Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Delta Air Lines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from Boston to Seattle

NameCarrier codeIATA CodePassport needed during bookingAirport check-in closesOnline check-in available
United AirlinesUALUAYesUnknownNo
Delta Air LinesDALDLYesUnknownNo
Alaska AirlinesASAASYesUnknownNo
American AirlinesAALAAYesUnknownNo
WNSWAWNNoUnknownNo

Frequently asked questions

How long does it take to travel from Boston to Seattle?

A one-way nonstop (direct) flight between Boston and Seattle takes around 6.4 hours.

What is the flight distance between Boston and Seattle?

The flight distance between Boston and Seattle is 4009 km.

What airlines offer nonstop (direct) flights between Boston and Seattle?

Several carriers operate flights between Boston and Seattle. Airlines offering nonstop (direct) flights include Alaska Airlines, Delta Air Lines.

What are the most popular routes to and from Boston?

Travelers frequently search for route combinations, such as Boston and John F. Kennedy International, Orlando International, Miami International, McCarran International, Fort Lauderdale–Hollywood International, Hartsfield–Jackson Atlanta International, Tampa International, Dallas/Fort Worth International, Baltimore–Washington International, Southwest Florida International, Austin–Bergstrom International.

What are the most popular routes to and from Seattle?

Travelers frequently search for route combinations, such as Seattle and Orlando International, McCarran International, Los Angeles International, Denver International, San Francisco International, Hartsfield–Jackson Atlanta International, Phoenix Sky Harbor International, Dallas/Fort Worth International, Guadalajara International, George Bush Intercontinental, Chicago Midway International.

What buses and trains depart from Boston?

A number of bus and train companies depart from Boston, including Peter Pan Bus.

Is it possible to combine flights, buses, and trains in one itinerary when traveling between Boston and Seattle?

What is Virtual Interlining and how do I use it?

Which airlines fly between Boston and Seattle?

When's the best time to travel between Boston and Seattle?

What flights operate between Boston and Seattle?

Is it possible to reach Boston by bus or train?

What time do nonstop (direct) flights between Boston and Seattle depart?

What time do nonstop (direct) flights between Boston and Seattle arrive?

What time do flights between Boston and Seattle depart?

What time do flights between Boston and Seattle arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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