Search flights from Baltimore (BWI) to Seattle (SEA)

Book your plane tickets from Baltimore to Seattle with ease

Cheapest flights to Seattle

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from Baltimore to Seattle: things to know

The most popular route is from Baltimore - Washington International Airport in Baltimore to Sea-Tac Airport in Seattle. On average this flight takes 7 hours 42 minutes one-way and costs $685 round-trip.

Most popular route
Baltimore - Washington International Airport (BWI) to Sea-Tac Airport (SEA)
Average flight time
7 hours 42 minutes
Average round-trip price
$685
Fly from Baltimore to Seattle
8 airlines

Reasons to book flights with Booking.com

  • Great selection

    Easily compare flights, airlines, and prices – all in one place

  • No hidden fees

    Always know exactly what you’re paying for

  • Flexibility

    Use our flexible plane ticket option to change your dates if needed

Flexible plane ticket options are available for an additional cost on select airfares

Airlines that fly from Baltimore to Seattle

Airline options may vary according to recently booked flights and your search terms

  • Alaska Airlines
  • American Airlines
  • Spirit Airlines
  • United Airlines
  • Frontier Airlines
  • Hawaiian Airlines
  • Sun Country
  • Southwest Airlines

Frequently asked questions

Fly to more destinations from Baltimore

Research, refine, and make plans for your whole trip

Flights to Washington State

Get your flight tickets to Washington State right here on Booking.com.

Hotels in Seattle

A popular choice with visitors to the United States.

Flights to Sea-Tac Airport

Jet into this airport to explore Seattle at your leisure.

Flights to Snohomish County Airport

Jet into this airport to explore Seattle at your leisure.

All flights

Fly to your next dream destination.
gogless