District of Columbia

$126+ Cheap flights from Washington to District of Columbia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IAD
Apr 16 — Apr 231
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Cheap flight deals from Washington to District of Columbia

Cheapest flights from Washington to District of Columbia
Explore the most affordable flight options available from Washington to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.

This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:00 am
SEA
-
IAD
Nonstop5h 11m
United Airlines
Thu 4/305:55 pm
IAD
-
SEA
Nonstop5h 58m
United Airlines
Deal found 3/12$219
This CheapOair deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:07 pm
SEA
-
DCA
1 stop13h 53m
Frontier
Mon 4/208:00 am
DCA
-
SEA
1 stop28h 27m
Frontier
Deal found 3/12$220
This Mytrip deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:12 pm
SEA
-
DCA
1 stop23h 47m
Frontier
Tue 4/211:59 pm
DCA
-
SEA
1 stop22h 28m
Frontier
Deal found 3/15$223
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:50 am
SEA
-
DCA
2 stops11h 00m
Southwest
Mon 5/47:45 pm
DCA
-
SEA
1 stop7h 20m
Southwest
Deal found 3/16$224
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:20 am
SEA
-
IAD
2 stops11h 20m
Southwest
Fri 5/85:55 pm
IAD
-
SEA
1 stop8h 35m
Southwest
Deal found 3/13$224
This CheapOair deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:07 pm
SEA
-
DCA
1 stop17h 52m
Frontier
Sun 4/198:00 am
DCA
-
SEA
1 stop28h 27m
Frontier
Deal found 3/15$226
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 am
SEA
-
IAD
1 stop7h 28m
United Airlines
Tue 4/215:55 pm
IAD
-
SEA
Nonstop5h 58m
United Airlines
Deal found 3/12$227
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:00 am
SEA
-
IAD
Nonstop5h 11m
United Airlines
Tue 5/55:55 pm
IAD
-
SEA
Nonstop5h 58m
United Airlines
Deal found 3/12$228
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:50 am
SEA
-
DCA
2 stops11h 00m
Southwest
Wed 5/63:40 pm
DCA
-
SEA
2 stops9h 50m
Southwest
Deal found 3/15$229
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 am
SEA
-
IAD
1 stop7h 28m
United Airlines
Wed 4/295:55 pm
IAD
-
SEA
Nonstop5h 58m
United Airlines
Deal found 3/13$229
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:15 am
SEA
-
DCA
1 stop11h 40m
Southwest
Wed 4/224:50 pm
DCA
-
SEA
2 stops10h 05m
Southwest
Deal found 3/16$230
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:00 am
SEA
-
IAD
1 stop13h 20m
Southwest
Wed 4/296:20 am
IAD
-
SEA
2 stops14h 25m
Southwest
Deal found 3/14$230

Find flight deals from Washington to District of Columbia

Keep the following information in mind while searching for Washington to District of Columbia flight deals. Data was last updated March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$219
(United Airlines)

One-way from

$126
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$428

Good round-trip deal

$223 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Washington, D.C. (WAS) flights.
From Washington to District of Columbia
One-way flight from Washington to District of Columbia
Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in March 2026
Price to beat on a round-trip flight from Washington to District of Columbia.
Price to beat on a one-way flight from Washington to District of Columbia.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to District of Columbia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 2026.
Use the filters below to find and compare flights from Washington to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 4/30

9:04 pm-5:41 pm

1 stop17h 37m

Washington, D.C. Dulles Intl

Sun 5/3

6:47 pm-9:26 am

1 stop17h 39m

$258

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Sun 4/12

10:35 pm-10:59 am

1 stop9h 24m

Washington, D.C. Reagan-National

Sat 4/25

4:34 pm-11:12 pm

1 stop9h 38m

$269

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Mon 5/11

11:55 pm-11:05 am

1 stop8h 10m

Washington, D.C. Reagan-National

Thu 5/14

3:35 pm-12:05 am

1 stop11h 30m

$283

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 4/22

10:40 pm-9:15 am

1 stop7h 35m

Washington, D.C. Dulles Intl

Wed 4/29

7:00 am-12:27 pm

1 stop8h 27m

$291

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 4/22

12:35 pm-1:25 am

1 stop9h 50m

Washington, D.C. Dulles Intl

Tue 4/28

9:55 am-3:15 pm

1 stop8h 20m

$291
Quickest round-trip

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 5/6

1:07 pm-9:16 pm

Nonstop5h 09m

Washington, D.C. Dulles Intl

Fri 5/8

9:00 am-11:48 am

Nonstop5h 48m

$292

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Wed 4/22

5:30 am-6:59 pm

2 stops10h 29m

Washington, D.C. Reagan-National

Tue 4/28

6:59 am-11:41 am

1 stop7h 42m

$296

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 4/29

7:30 pm-5:50 am

1 stop7h 20m

Washington, D.C. Dulles Intl

Sat 5/2

9:00 am-3:42 pm

1 stop9h 42m

$297

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Fri 5/8

11:05 pm-10:22 am

1 stop8h 17m

Washington, D.C. Dulles Intl

Mon 5/11

5:21 pm-10:48 pm

1 stop8h 27m

$298

PullmanWashington, D.C.

PUW - IAD

PUWIAD

Pullman Moscow Regional

Tue 4/28

3:23 pm-12:09 am

1 stop29h 46m

Washington, D.C. Dulles Intl

Sat 5/2

9:00 am-2:46 pm

1 stop8h 46m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Washington to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to District of Columbia

What is the cheapest month to book a flight from State of Washington to District of Columbia?

Currently, January is the cheapest month in which you can book a flight from State of Washington to District of Columbia (average of $91). Flying from State of Washington to District of Columbia in November is currently the most expensive (average of $209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to DC?

Find hourly flight availability from Washington to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 17, 2026.

When flying from State of Washington to District of Columbia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 30% versus a flight at noon.

What is the cheapest day to fly from State of Washington to District of Columbia?

Use this chart to determine the cheapest time to fly round-trip from Washington to District of Columbia. Price data was last updated on March 14, 2026.

Travelers seeking maximum savings on their State of Washington to District of Columbia flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from State of Washington to District of Columbia

Explore weekly flight availability from Washington to District of Columbia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 17, 2026.

The most flights from USWA to USDC are scheduled on a Tuesday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to District of Columbia. Reviews last updated March 17, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Washington to District of Columbia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Washington to District of Columbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from State of Washington to District of Columbia?

    Departing from State of Washington to District of Columbia will take you 8h 10m. The distance between State of Washington and District of Columbia is about 2321 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from State of Washington to District of Columbia one-way?

    The cheapest airlines for a one-way flight from State of Washington to District of Columbia are Frontier ($83), American Airlines ($86), and Southwest ($89).

  • Can I find deals for flights from Washington to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Washington to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to District of Columbia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to District of Columbia.

  • Can I find deals for business class flights from Washington to District of Columbia?

    Yes. Cheapflights offers flight deals from Washington to District of Columbia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to District of Columbia?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to District of Columbia (average of $91). Flying from State of Washington to District of Columbia in November is currently the most expensive (average of $209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Washington to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Washington to District of Columbia

Discover the top 7 airlines that operate flights from Washington to District of Columbia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$103Average$410FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$126Average$272FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$371FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$178Average$440FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$187Average$455FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$199Average$539FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$218Average$484FlexibilityNo cancel feeOn-time69%

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