£103 Cheap Alaska Airlines flights from Seattle to Washington (SEA→DCA)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards

Alaska Airlines flights from Seattle to Washington (SEA→DCA)

Prices were available within the past 7 days and start at £103 for one-way flights and £207 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Flight from Seattle to Washington route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, United
Popular airline
Alaska Airlines
Distance
3715 km
Average flight time
8 hours 6 mins
*Available to Expedia members.