Affordable Flights from Boston to Seattle

Fly from Boston (BOS) to Seattle (SEA) at competitive prices for both leisure and business travel. With multiple airline options and flexible schedules, travelers can enjoy convenience and cost savings.

Round-trip fares often range between $280 and $550, depending on season and booking time. My Trips Time helps you compare options to land the best deal for your itinerary.

Best Time to Book Flights from Boston to Seattle

Booking 8–10 weeks in advance usually yields the best rates. Shoulder seasons like spring (March–May) and fall (September–October) offer more affordable fares.

Mid-week departures (Tuesday–Thursday) are often cheaper than weekends. Using fare alerts via My Trips Time helps you grab occasional deals.

Boston Logan International Airport (BOS)

BOS is New England’s major airport, offering efficient check-in, lounges, car rentals, and connections to Seattle. Its central location makes it ideal for travelers departing from the Boston metro area.

Seattle–Tacoma International Airport (SEA)

SEA serves the greater Seattle area with modern facilities, easy transport to downtown, car rentals, taxis, and shuttle services. Arrival is smooth and convenient for first-time visitors or frequent travelers alike.

Seattle – Emerald City of the Pacific Northwest

Seattle is a cultural and natural hub featuring tech, music, arts, and outdoor attractions. Visitors enjoy a blend of city life and scenic beauty.

Major Attractions:

  • Space Needle – iconic observation tower
  • Pike Place Market – historic marketplace
  • Chihuly Garden and Glass – artistic glass installations
  • Museum of Pop Culture – music and culture exhibits
  • Seattle Aquarium – marine life exploration
  • Kerry Park – panoramic city views
  • Olympic Sculpture Park – outdoor art displays
  • Mount Rainier National Park – nature excursions

From city tours to hiking nearby mountains, Seattle offers a diverse travel experience for all types of visitors.

Airlines Flying Boston to Seattle

Travelers have multiple options for nonstop and connecting flights from BOS to SEA.

  • Alaska Airlines
  • Delta Air Lines
  • United Airlines
  • American Airlines
  • JetBlue Airways

Compare routes, schedules, and fares on My Trips Time to choose the best option for your trip.

Why Book with My Trips Time?

  • Competitive BOS → SEA fares
  • Secure and user-friendly booking platform
  • Compare multiple airlines and schedules
  • Transparent pricing without hidden fees
  • Travel support and planning tips
  • Flexible booking options for families, groups, and solo travelers

Frequently Asked Questions

Nonstop flights take about 6 hours; connecting flights vary depending on layovers.

Yes, Alaska Airlines and Delta offer nonstop flights on this route.

Seattle–Tacoma International Airport (SEA).

8–10 weeks before departure, or during spring/fall seasons.

Typical fares range between $280–$550 depending on airline and booking time.

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