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District of Columbia

$111+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IAD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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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 January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/191:16 pm
SEA
-
DCA
1 stop20h 59m
Frontier
Wed 2/252:00 pm
DCA
-
SEA
1 stop25h 01m
Frontier
Deal found 1/27$205
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:30 pm
SEA
-
DCA
2 stops39h 45m
Frontier
Wed 2/252:00 pm
DCA
-
SEA
1 stop25h 01m
Frontier
Deal found 1/27$212
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/281:16 pm
SEA
-
DCA
1 stop20h 59m
Frontier
Wed 3/42:00 pm
DCA
-
SEA
1 stop25h 01m
Frontier
Deal found 1/29$214
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:24 pm
SEA
-
DCA
1 stop21h 38m
Frontier
Wed 3/118:00 am
DCA
-
SEA
2 stops16h 03m
Frontier
Deal found 1/26$218
This CheapOair deal was found by Cheapflights users on 1/27. 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.
Fri 4/244:20 pm
SEA
-
DCA
1 stop17h 40m
Frontier
Sat 5/26:00 pm
DCA
-
SEA
1 stop18h 27m
Frontier
Deal found 1/27$226
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2712:00 pm
SEA
-
DCA
1 stop22h 00m
Frontier
Tue 3/102:00 pm
DCA
-
SEA
2 stops30h 09m
Frontier
Deal found 1/27$231
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/147:15 am
SEA
-
DCA
1 stop9h 50m
Hawaiian Airlines
Sat 3/215:10 pm
DCA
-
SEA
1 stop8h 18m
Hawaiian Airlines
Deal found 1/28$236
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/181:56 pm
SEA
-
DCA
Nonstop5h 03m
Alaska Airlines
Tue 2/248:00 am
DCA
-
SEA
Nonstop5h 55m
Alaska Airlines
Deal found 1/27$237
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/269:45 pm
SEA
-
IAD
Nonstop4h 55m
Alaska Airlines
Mon 3/27:05 am
IAD
-
SEA
Nonstop6h 00m
Alaska Airlines
Deal found 1/29$237
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/261:16 pm
SEA
-
DCA
1 stop24h 43m
Frontier
Thu 3/52:00 pm
DCA
-
SEA
1 stop24h 19m
Frontier
Deal found 1/27$238
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/211:51 pm
SEA
-
DCA
2 stops20h 24m
Frontier
Wed 2/252:00 pm
DCA
-
SEA
1 stop25h 01m
Frontier
Deal found 1/27$242
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/2312:43 pm
SEA
-
IAD
1 stop7h 38m
United Airlines
Wed 3/45:55 pm
IAD
-
SEA
Nonstop6h 01m
United Airlines
Deal found 1/27$243

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$205
(Kiwi.com)

One-way from

$111
(Frontier)

Popular in

June

Cheapest in

July

Average price

$388

Good round-trip deal

$216 or less

Good one-way deal

$181 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Washington, D.C. (WAS) flights.
Search Deals
From Washington to District of Columbia
Search Deals
One-way flight from Washington to District of Columbia
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Washington to District of Columbia.
Search Deals
Price to beat on a one-way flight from Washington to District of Columbia.
Search Deals

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 January 29, 2026.
Use the filters below to find and compare flights from Washington to District of Columbia that are best for you.

Fly from

Washington

Fly to

District of Columbia

Route

Depart

Return

Price

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Wed 4/15

1:53 pm-9:59 pm

Nonstop5h 06m

Washington, D.C. Reagan-National

Tue 4/28

8:00 am-10:57 am

Nonstop5h 57m

$237

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 4/1

8:00 am-4:11 pm

Nonstop5h 11m

Washington, D.C. Dulles Intl

Sat 4/4

5:55 pm-8:53 pm

Nonstop5h 58m

$237

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 4/15

3:59 pm-11:55 pm

Nonstop4h 56m

Washington, D.C. Dulles Intl

Tue 4/28

7:00 am-9:54 am

Nonstop5h 54m

$237

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 2/28

8:17 am-4:19 pm

Nonstop5h 02m

Washington, D.C. Dulles Intl

Wed 3/4

5:55 pm-8:56 pm

Nonstop6h 01m

$237

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Fri 4/17

3:59 pm-11:55 pm

Nonstop4h 56m

Washington, D.C. Dulles Intl

Tue 4/28

7:00 am-9:54 am

Nonstop5h 54m

$237

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 2/26

8:17 am-4:19 pm

Nonstop5h 02m

Washington, D.C. Dulles Intl

Thu 3/5

5:55 pm-8:56 pm

Nonstop6h 01m

$237

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Mon 2/23

12:43 pm-11:21 pm

1 stop7h 38m

Washington, D.C. Dulles Intl

Wed 3/4

5:55 pm-8:56 pm

Nonstop6h 01m

$243

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 2/28

8:17 am-4:19 pm

Nonstop5h 02m

Washington, D.C. Dulles Intl

Fri 3/6

5:26 pm-10:45 pm

1 stop8h 19m

$247

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Fri 2/27

11:59 pm-11:49 am

1 stop8h 50m

Washington, D.C. Dulles Intl

Tue 3/10

5:55 pm-8:56 pm

Nonstop6h 01m

$247

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 4/16

12:08 pm-11:25 pm

1 stop8h 17m

Washington, D.C. Dulles Intl

Mon 4/27

5:55 pm-8:53 pm

Nonstop5h 58m

$247

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 60 results
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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 December 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 January 29, 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 31% 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 January 24, 2026.

Travelers seeking maximum savings on their State of Washington to District of Columbia flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday 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 January 29, 2026.

The most flights from USWA to USDC are scheduled on a Thursday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from State of Washington to District of Columbia?

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 January 29, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian 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.
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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.
Alaska Airlines
8.0
Very good
11,808 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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.
Delta
7.9
Good
8,124 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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.
Hawaiian Airlines
7.8
Good
2,830 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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.
United Airlines
7.4
Good
9,214 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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.
Frontier
5.7
Fair
3,056 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

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 4h 56m. The distance between State of Washington and District of Columbia is about 2299 mi. Most flights are nonstop.

  • 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 ($93).

  • 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 December 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.

See more FAQs

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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.
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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$103Average$414FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$126Average$273FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$378FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$178Average$444FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$200Average$558FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$203Average$509FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$218Average$441FlexibilityNo cancel feeOn-time63%

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