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Find cheap flights from Seattle to District of Columbia from $129

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to District of Columbia departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 6/3
Mon 6/10

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Best District of Columbia Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Washington, D.C.
Baltimore1 stop$140

Good to know

Low season

January

High season

April

Cheapest flight

$129
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Seattle to Reagan Washington National Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from Seattle to District of Columbia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to District of Columbia from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to District of Columbia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to District of Columbia with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to District of Columbia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to District of Columbia from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to District of Columbia

  • Morning departure is around 43% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Seattle to District of Columbia

 
Need help choosing which airline to fly with from Seattle to District of Columbia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
EVA AirOverall score based on 1542 reviews
8.4Boarding
8.2Comfort
8.0Food
8.6Crew
8.0Entertainment
Airline reviews

The type of the food requested (Asian vegetarian) was not properly met with. They have very limited snack items that may compensate for the main meals.

8.0 ExcellentAnonymous, Apr 2024TPE - JFK
Read more about EVA Air reviews

The type of the food requested (Asian vegetarian) was not properly met with. They have very limited snack items that may compensate for the main meals.

The quality of the food is pretty good. Thank you, EVA Air.

Pleasant, comfortable, and entertaining. All told, ZERO issues with it. And sadly, so far the flight was WAY more comfortable than the hellhole that is "Lambug Beach Resort" at Badian Beach!

Pleasant crew. Very long flight, a bit uncomfortable at times being seated, but not too bad.

No ice for the drinks. Only gave a half a cup of your beverage. Not enough water. I got very dehydrated.

Eva is one of the top airlines in Asia... but often are over priced. Finally found a reasonable rate.

My original flight was rescheduled & EVA did a good job rescheduling my flight & connecting flight.

Polite hard working crew. No complaints really. Meals were not to my liking.

Everything was fantastic! The crew really went above and beyond to make it a great flight. I felt cared for with EVA.

t and I Flight crew did excellent job taking care of us and feeding us and staying professional. The boarding was delayed by an hour and then extra security measures were taken. No real explanation except for they said it was more of a maintenance dey

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

The weather caused a delayed but I was impressed how United did everything they could to try to get us out which included bussing us to the plane doing a Hardstand and bringing us to the plane since the fog was too thick to tow the plane from the overnight stay in the cargo area.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Food was really good. Chicken curry delicious. Great service. Had 3 seats, what a pleasure. What about a healthier desert option on the dinner? Yogurt, fruit? Thankyou

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

I had the exit seat with all the leg room I could ask for. Great!

I wish there were no credit card announcements. I paid hundreds of dollars, I don't need to pay again by sitting through advertisements.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

Crowded plane but it flew on time and had friendly staff

The Air Canada agent was very helpful helping with my luggage and cat carrier when I went there instead of United.

Lost my bag. My first ever flight with them that they forced me to gate check my bag on, due to them having a 30 year old plane with small carry on bins, and they lost my bag. Never again.

United force you to download their App to do the check-in.

I liked Seattle but nothing air Canada did there was any good at all neither was kayak as when I purchased my flights the price I purchased at was not what kayak charged to my card and there has been no responses to my emails ....

There is no food or entertainment on these short flights. Again the wheelchair situation in Denver is nasty. They are short staffed due to cut backs and layoffs and this impacts on travel comfort and ease.

There was no food or entertainment on this flight. Great flight crew though

My connection arrived and this flight left early. My seat was reassigned, and the row didn’t have a window so I wasn’t able to see the Rockies, which I was disappointed. The flight staff was efficient.

Book cheap flights from Seattle to District of Columbia

Recent round-trip flight deals

5/17Fri
1 stopFrontier
20h 35mSEA-DCA
5/19Sun
1 stopFrontier
28h 40mDCA-SEA
$231
5/13Mon
1 stopFrontier
24h 40mSEA-DCA
5/17Fri
1 stopFrontier
17h 24mDCA-SEA
$234
5/28Tue
nonstopAlaska Airlines
5h 12mSEA-IAD
6/5Wed
nonstopAlaska Airlines
5h 30mIAD-SEA
$275
5/28Tue
nonstopDelta
5h 03mSEA-IAD
6/4Tue
nonstopDelta
5h 49mIAD-SEA
$277
5/29Wed
nonstopAlaska Airlines
5h 12mSEA-IAD
6/2Sun
nonstopAlaska Airlines
5h 30mIAD-SEA
$280
5/28Tue
1 stopUnited Airlines
7h 00mSEA-IAD
6/4Tue
nonstopUnited Airlines
5h 47mIAD-SEA
$286
5/30Thu
nonstopDelta
5h 03mSEA-IAD
6/2Sun
nonstopDelta
5h 49mIAD-SEA
$289
5/24Fri
nonstopUnited Airlines
4h 59mSEA-IAD
5/29Wed
1 stopUnited Airlines
9h 31mIAD-SEA
$292
8/13Tue
1 stopAmerican Airlines
7h 44mSEA-IAD
8/17Sat
1 stopAmerican Airlines
9h 06mIAD-SEA
$306
8/13Tue
1 stopAmerican Airlines
8h 09mSEA-IAD
8/20Tue
1 stopAmerican Airlines
9h 06mIAD-SEA
$308

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Recent one-way flight deals

5/22Wed
1 stopFrontier
7h 03mSEA-DCA
$129
5/26Sun
1 stopFrontier
11h 24mSEA-DCA
$132
5/25Sat
1 stopSun Country Air
8h 37mSEA-IAD
$135
5/28Tue
nonstopDelta
5h 03mSEA-IAD
$139
6/2Sun
nonstopDelta
5h 04mSEA-IAD
$145
5/28Tue
1 stopAmerican Airlines
8h 32mSEA-IAD
$147
8/27Tue
2 stopsAmerican Airlines
10h 44mSEA-IAD
$149
5/30Thu
1 stopUnited Airlines
7h 29mSEA-DCA
$154
5/27Mon
1 stopUnited Airlines
6h 56mSEA-IAD
$154
6/16Sun
1 stopJetBlue
8h 55mSEA-DCA
$163

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Last minute flights from Seattle to District of Columbia

Last minute flight, train and bus deals

5/8Wed
multi-stopFrontier
15h 02mSEA-DCA
5/10Fri
multi-stopFrontier
17h 34mDCA-SEA
$282
5/8Wed
multi-stopFrontier
15h 02mSEA-DCA
5/15Wed
multi-stopFrontier
28h 30mDCA-SEA
$287
5/8Wed
multi-stopFrontier
15h 02mSEA-DCA
5/15Wed
multi-stopFrontier
28h 30mDCA-SEA
$290
5/7Tue
multi-stopAmerican Airlines
8h 52mSEA-IAD
5/12Sun
multi-stopAmerican Airlines
10h 43mIAD-SEA
$573
5/7Tue
multi-stopAmerican Airlines
8h 00mSEA-DCA
5/11Sat
multi-stopAmerican Airlines
9h 22mDCA-SEA
$574
5/8Wed
multi-stopDelta
7h 25mSEA-IAD
5/16Thu
nonstopDelta
5h 45mIAD-SEA
$597
5/8Wed
multi-stopUnited Airlines
13h 26mSEA-IAD
5/16Thu
nonstopUnited Airlines
5h 48mIAD-SEA
$611
5/4Sat
nonstopDelta
4h 55mSEA-IAD
5/16Thu
nonstopDelta
5h 45mIAD-SEA
$647
5/7Tue
multi-stopJetBlue
12h 04mSEA-DCA
5/11Sat
multi-stopJetBlue
11h 21mDCA-SEA
$660
5/8Wed
multi-stopUnited Airlines
16h 17mSEA-IAD
5/12Sun
nonstopUnited Airlines
5h 48mIAD-SEA
$701

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Seattle - District of Columbia Flights

Departure:

Seattle (SEA)United States

Return flight deals:

District of Columbia - Seattle

Cabin classes:

$397
$792
$507
$144