United Flights from Seattle (SEA) to Washington (IAD)
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United Flights from SEA to IAD
How much is a United flight from Seattle (SEA) to Washington (IAD)?
One-way flights start as little as and there are roundtrips available from . Get in! You can score some sweet deals with Wotif and United.
How many non-stop United flights from Seattle (SEA) to Washington (IAD) are there per day?
United flies flights direct every day between Seattle (SEA) and Washington (IAD).
How far is Seattle (SEA) from Washington (IAD)?
It’s from Seattle (SEA) to Washington (IAD).
What is the best airline to fly from Seattle - Tacoma Intl.?
At Wotif, we give you all the available options from our reputable partners. Select the airline that best suits your preferences and membership loyalties. You can fly from Seattle - Tacoma Intl. with: .
Can I change or cancel my United tickets from Seattle to Washington on Wotif?
Change of plans? No worries! We’re right here to make things as easy as possible. Check out the United rules and restrictions in your itinerary. You can also use the No Change Fees filter to find flexible plane tickets for future trips. For more information on how to cancel or change your flight on Wotif, visit our customer service portal.
How do I find the best deal on United flights from Seattle (SEA) to Washington (IAD)?
Just review and compare all our awesome offers or enter your travel dates to see more terrific deals on United flights from Seattle. And remember you can save even more when you bundle a hotel with your flight as part of a Wotif package. Sweet!
What’s a good way to get cheap United flight tickets from Seattle to Washington?
We have loads of cheap flights, so just enter your travel dates to see what’s available. If you can be flexible on when you fly, you’ll find even more epic flight deals. So get booking!
What is the cheapest time of year to fly from Seattle (SEA) to Washington (IAD)?
The cheapest time of the year for a return trip is . One-way, the cheapest month to fly is . Check our deal cards for details.
How long does it take to fly from SEA to IAD?
It typically takes hours to fly directly from Seattle (SEA) to Washington (IAD).
Epic Hotel in Washington
Hyatt Regency Dulles International Airport
Quick overnight to catch a flight out of Dulles. Took the stress out of the morning
Reviewed on 28 Mar 2026
Hyatt Place Herndon Dulles Airport East
The options available were repetitive, minimal, and not particularly appealing. If you’re expecting a diverse or fresh breakfast to start your day, this isn’t the place that will deliver it. Overall, the experience didn’t match the standard I’ve come to expect from Hyatt properties.
Reviewed on 29 Mar 2026
Washington Dulles Airport Marriott
The hotel was like a big maze, we liked it, the front desk staff was friendly and very helpful with everything. the room was nice and clean, the pool area was clean, is very well set up, no hut tub but the pool was very warm and big enough to swim laps. The gentleman at the restaurant was very friendly ...
Reviewed on 30 Mar 2026
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^Savings based on all package bookings made with Flight + Hotel on Wotif.com from , 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.