Flights from Reagan to Seattle

DCASEA

Ronald Reagan Washington National Airport (Washington, United States) → Seattle–Tacoma International Airport (Seattle, United States)

Nonstop
5h 50m
Distance
3,738 km
Frequency
7×/week
One-way from
$170
Airlines
Alaska Airlines, Delta Air Lines
Book on Aviasales

Fares by month

One-way, per person

Lowest fares Aviasales travelers found in recent searches; some may include a connection. Prices change often — tap a month to see live fares.

Weekly schedule

Monday

  • AS108:00→10:555h 55mAlaska Airlines
  • DL78616:45→19:355h 50mDelta Air Lines
  • AS317:11→20:136h 2mAlaska Airlines

Tuesday

  • AS108:00→10:555h 55mAlaska Airlines
  • DL78616:45→19:355h 50mDelta Air Lines
  • AS317:11→20:136h 2mAlaska Airlines

Wednesday

  • AS108:00→10:555h 55mAlaska Airlines
  • DL78616:45→19:355h 50mDelta Air Lines
  • AS317:11→20:136h 2mAlaska Airlines

Thursday

  • AS108:00→10:555h 55mAlaska Airlines
  • DL78616:45→19:355h 50mDelta Air Lines
  • AS317:11→20:136h 2mAlaska Airlines

Friday

  • AS108:00→10:555h 55mAlaska Airlines
  • DL78616:45→19:355h 50mDelta Air Lines
  • AS317:11→20:136h 2mAlaska Airlines

Saturday

  • AS108:00→10:555h 55mAlaska Airlines
  • DL78616:45→19:355h 50mDelta Air Lines
  • AS317:11→20:136h 2mAlaska Airlines

Sunday

  • AS108:00→10:555h 55mAlaska Airlines
  • DL78616:45→19:355h 50mDelta Air Lines
  • AS317:11→20:136h 2mAlaska Airlines

Reagan to Seattle — frequently asked

How long is the flight from Reagan to Seattle?
DCA–SEA is 5h 50m nonstop, covering 3,738 km (2,323 mi).
Which airlines fly nonstop from Reagan to Seattle?
Alaska Airlines, Delta Air Lines operate this route nonstop.
How much is a flight from Reagan to Seattle?
One-way fares on DCA–SEA recently started from $170 ($192 nonstop). The lowest recent fare is for travel in December 2026. Fares change daily, so check current prices before booking.
How often do flights run from Reagan to Seattle?
The route is served 7 days a week (21 scheduled departures).