Beginning of main content

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Fares from $99 One Way, $188 Round Trip from Washington to Seattle

Prices starting at $188 for return flights and $99 for one-way flights to Seattle were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Need A Hotel In Seattle?

Hotels In Top Seattle Neighborhoods

Downtown Seattle
643 hotels

The Belltown Inn

2.5 out of 5.0


255 hotels
Queen Anne
148 hotels

Mediterranean Inn

3.0 out of 5.0


Stay Near Exciting Seattle Attractions

More About Flying To Seattle from Washington

Route Information for Flights from Washington to Seattle

Origin Airport IATA CodeWAS
Destination Airport IATA CodeSEA
Distance2328 mi
Direct Flight AirlinesAlaska Airlines
Earliest Flight Arrival4:08AM UTC
Latest Flight Arrival4:08AM UTC

Flights Review

Jan 23, 2020

Delta Service is excellent

Aug 29, 2019

Greatly appreciated a direct flight IAD to SEA (or DCA to SEA) Please keep this running

Aug 22, 2019

It will be better of they allow us to chose our seats when we buy the tickets.

Aug 17, 2019

Thank you!

Aug 3, 2019

The delays were a bit much, but overall it was a good flight

Jul 31, 2019

Nicest flight attendant ever

Jun 12, 2019

The flight crew made the flight fun.

Jun 7, 2019

Delta is definitely doing things to differentiate themselves. Nicely done!

May 26, 2019

Didn’t like not getting my seat until check in. Especially since I was flying w my 7 year old. Wasn’t sure we would be put together.

Dec 21, 2018

Pilot did an amazing job keeping us safe by aborting landing in heavy wind at Seattle airport and flew to Vancouver. He had big challenges on all ends and really did a fantastic job. We all applauded when we finally got back to Seattle. Bravo!

Travel to Seattle Today

Seattle is a large city with more than 616,000 residents, and Washington DC’s population is about the same. Trade federal buildings and government monuments for a cultural experience filled with museums, aquariums, and unique restaurants when you use to find cheap flights from Washington DC to Seattle, Washington.

Departing from Washington DC

Washington has two major airports, both of which can help you reach your destination. Familiar carriers, such as US Airways and Frontier Airlines, help domestic passengers reach Seattle from Ronald Reagan Washington National Airport, while Washington Dulles International Airport uses Colgan Air and Virgin America. Rely on DC Yellow Cab to help you arrive on time for your flight or drive your own vehicle and take advantage of the large parking lots located at each airport. Each airport lot offers daily parking rates that vary from $10 to $20, based on amenities such as covered parking.

About Seattle

Most travelers land at Seattle-Tacoma International Airport, informally referred to as Sea-Tac by locals. The airport is about fifteen miles from downtown Seattle, so you’ll want to take advantage of the Link Light Rail or hail a taxi. Rental cars are also an option, and you can get one from Budget or Avis. Seattle is notorious for its rainy weather, and this wet state has the highest amount of precipitation in November. The temperature varies throughout the year, depending on the season. Average temperatures range from the mid-30s during the winter to the mid-70s in the summer. Visit this stormy city in the spring or summer if you want to avoid the coldest days. A common stereotype conveys Seattle as an artsy area with lots of coffee drinkers, and there actually are quite a few coffee shops and cafes scattered across Seattle. Grab a hot cup of espresso at Bakery Nouveau or stop by Molly Moon for some homemade ice cream. Head downtown to get a glimpse of the entire city from the top of the Space Needle or take the family to the Pacific Science Center to learn more about the world. Seattle has enough museums, shops, and restaurants to keep parents and kids happy.

Trip Information

Don’t spend another vacation in Washington DC wondering if Pike Place Market really has flying fish. Pack your galoshes and rain jacket and get ready for an exciting Seattle vacation. Use to find hotels and book flights from Washington DC to Seattle for a memorable trip that your entire family will enjoy.

Flights from Washington to Seattle - Frequently Asked Questions

Are there non-stop flights from Washington to Seattle?

There are 3 airlines that fly straight from Washington, DC (IAD-Washington Dulles Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), so get ready to hit that beautiful "book" button. One of these popular carriers will have the flight you're looking for:

  • Alaska Airlines
  • United Airlines
  • Delta Air Lines
What is the shortest flight from Washington to Seattle?

The fastest flight time from Washington to Seattle is 5 hours and 31 minutes, which gives you plenty of time to enjoy a drink or lose yourself in a good book.

What airlines fly from Washington (and vicinity) to Seattle (and vicinity) most frequently?

Consider booking a ticket with Alaska Airlines (AS), which frequently services this route. This airline operates 81 flights each month between Washington, DC Airport (IAD-Washington Dulles Intl.) and Seattle, WA Airport (SEA-Seattle - Tacoma Intl.). Alternatively, lock in a seat with United Airlines (UA). You'll have 73 monthly flights between Washington (and vicinity) and Seattle (and vicinity) to take your pick of with this company.

If I am not able to travel due to COVID-19, can I cancel my flight to Seattle?

We get that traveling right now has its challenges, so it's good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to Seattle have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you'll quickly see what options are available. Our Customer Service Portal is the place to go for more information.

Are there flights to Seattle with flexible change policies?

In most cases you'll have the option to reschedule your flight to Seattle without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the "no change fees" filter and book with confidence.

What is the cheapest day of the week to fly?

Consider flying out early in the week to save on your airfare. Orbitz data from 2019 shows that Tuesday is the cheapest day to depart, followed by Monday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.

What is the cheapest month to fly?

We won't keep you guessing, according to Orbitz data the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a fresh start to the new year. Be aware that the most expensive time to fly isn't the height of summer, as most people assume, but the festive month of December.

How can I save money on flights?

To really save big on your next vacation, think outside the box. Select two different airlines or fare types for your return trip and you'll generally get a much better deal. Those who tried this on Orbitz in 2019 saved over 50% on their airfares. Get mixing and matching today!

*According to flight demand on from January to December 2019. Savings are subject to change based on departure location, date and destination.

^Savings based on all package bookings with Flight + Hotel made on from January 1, 2019 to December 31, 2019 as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.