$208 Find Cheap Flights from Reagan Washington National Airport to Seattle - Compare and Save

These are the earliest and latest flight times available from Washington, D.C. Reagan-National Airport to Seattle:

• Earliest: departs at 8:00 am and lands at 2:07 pm
• Latest: departs at 5:11 pm and lands at 11:18 pm.

The flight takes about 6h 07m.

Four cabin classes are available on flights from Washington, D.C. Reagan-National Airport to Seattle:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Washington, D.C. Reagan-National Airport to Seattle takes 6h 07m, covering 2,321 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Washington, D.C. Reagan-National Airport to Seattle range from $335 to $613, with an average of $465 over the past 12 months. Anything below $335 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 66% above the $465 route average. Book 9 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $363 round-trip via Denver Intl (DEN), compared to $496 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines. Other aircraft seen on the route include Airbus A321neo variants.

Morning is the busiest departure period on Washington, D.C. Reagan-National Airport to Seattle flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $301 to $1,663. That means the highest observed fare was about 6x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on Washington, D.C. Reagan-National Airport to Seattle flights:

• Alaska Airlines
• Delta

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Washington, D.C. Reagan-National Airport to Seattle are currently lower than usual. Average one-way flight prices are about $211, which is 24% below the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Budget
• Hertz

Flights from Washington, D.C. Reagan-National Airport to Seattle usually depart from Washington, D.C. Reagan-National (DCA) and arrive at Seattle/Tacoma Intl (SEA).

One-stop flights from Washington, D.C. Reagan-National Airport to Seattle most commonly connect through:

• Chicago O'Hare Intl (ORD) - 40% of one-stop connections
• Denver Intl (DEN) - 36% of one-stop connections
• Chicago Midway (MDW) - 16% of one-stop connections
• Charlotte Douglas (CLT) - 3% of one-stop connections

Yes. Flexible dates can save you up to 25% on flights from Washington, D.C. Reagan-National Airport to Seattle. Wednesday is the cheapest departure day at $430 round-trip on average, while Sunday is the most expensive at $573, a difference of $143.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Washington, D.C. Reagan-National Airport and Seattle. The airlines offering nonstop flights on this route include:

• Alaska Airlines
• Delta

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 7h 32m, compared with 7h 54m via Chicago O'Hare Intl (ORD) and 8h 18m via Charlotte Douglas (CLT).

Seattle is 3 hours behind Washington, D.C. Reagan-National Airport (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Among airlines operating Washington, D.C. Reagan-National Airport to Seattle flights:

• Alaska Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in Economy Class
• Delta: a cabin bag and a checked bag in First Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Yes. There are two nursing rooms at DCA. One is in Terminal A landside, just before the TSA security checkpoint, and the other is National Hall landside, near the Metro walkway. These rooms are calm private spaces with rocking chairs, power outlets, and changing tables.

The USO at the Ronald Reagan Airport is on the Concourse level of Terminal A landside, across from the Lost and Found. Active duty US military personnel and their families can enjoy the services and facilities of the USO at DCA free of charge. Some amenities of this military lounge include refreshments, comfortable seating, TV, and more. The lounge is open 6 am to 6 pm on weekdays and 8 am to 4 pm on weekends.

Yes. If you want to ease the kinks out of your sore or stiff muscles when you land at SEA, you can go to the Spa Terminal Gateway at Gate A5 on Concourse A. This spa retail outlet offers massages as well as other relaxation treatments.

For affordable transportation into the city, go to the fourth floor near the parking garage where you will find the Light Rail Station at SeaTac. Catch Light Rail #1, and this train will take you to several different locations throughout the Seattle metropolitan area.