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District of Columbia

$424+ Cheap flights from Cardiff (CWL) 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — IAD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Cardiff to District of Columbia

Keep the following information in mind while searching for Cardiff to District of Columbia flight deals. Data was last updated August 14, 2025.

Round-trip from

$708
(Kiwi.com)

One-way from

$424
(Kiwi.com)
From Cardiff Wales to District of Columbia
Search Deals
One-way flight from Cardiff Wales to District of Columbia
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Find flight deals from Cardiff to District of Columbia

Cheapest flights from Cardiff to District of Columbia
Explore the most affordable flight options available from Cardiff to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:00 amCWL - IAD
1 stop11h 50mMultiple Airlines
Sat 10/45:20 pmIAD - CWL
1 stop12h 15mMultiple Airlines
Deal found 8/13$708
This Virgin Atlantic deal was found by Cheapflights users on 8/13. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:45 amCWL - IAD
1 stop10h 50mVirgin Atlantic
Sat 10/412:08 pmIAD - CWL
2 stops16h 07mVirgin Atlantic
Deal found 8/13$867
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:45 amCWL - IAD
2 stops14h 52mDelta
Sat 10/45:25 pmIAD - CWL
2 stops18h 20mDelta
Deal found 8/13$872
This Trip.com deal was found by Cheapflights users on 8/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:45 amCWL - DCA
2 stops18h 56mKLM
Sat 10/42:00 pmDCA - CWL
2 stops14h 15mKLM
Deal found 8/13$910
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:00 amCWL - DCA
2 stops14h 04mMultiple Airlines
Sat 10/412:55 pmDCA - CWL
3 stops16h 40mMultiple Airlines
Deal found 8/13$950
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/181:10 pmCWL - IAD
2 stops38h 00mMultiple Airlines
Mon 8/255:20 pmIAD - CWL
1 stop17h 35mMultiple Airlines
Deal found 8/13$1,422
This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1812:00 pmCWL - IAD
2 stops34h 35mBritish Airways
Mon 8/255:55 pmIAD - CWL
2 stops12h 35mBritish Airways
Deal found 8/13$1,796
This KLM deal was found by Cheapflights users on 8/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/189:50 amCWL - DCA
2 stops15h 57mKLM
Mon 8/251:55 pmDCA - CWL
2 stops14h 20mKLM
Deal found 8/13$1,849
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1812:00 pmCWL - DCA
3 stops24h 49mMultiple Airlines
Mon 8/252:54 pmDCA - CWL
3 stops15h 36mMultiple Airlines
Deal found 8/13$2,011

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cardiff 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 August 14, 2025.
Use the filters below to find and compare flights from Cardiff to District of Columbia that are best for you.

Fly from

Cardiff

Fly to

District of Columbia

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 9/27

9:00 am-3:50 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Sat 10/4

5:20 pm-10:35 am

1 stop12h 15m

$708

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 9/27

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Sat 10/4

12:08 pm-9:15 am

2 stops16h 07m

$867

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Fri 9/26

9:50 am-11:41 pm

2 stops18h 51m

Washington, D.C. Reagan-National

Fri 10/3

7:30 pm-5:05 pm

2 stops16h 35m

$871

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 9/27

9:45 am-7:37 pm

2 stops14h 52m

Washington, D.C. Dulles Intl

Sat 10/4

5:25 pm-4:45 pm

2 stops18h 20m

$872

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 9/27

9:45 am-11:41 pm

2 stops18h 56m

Washington, D.C. Reagan-National

Sat 10/4

2:00 pm-9:15 am

2 stops14h 15m

$910

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 9/27

9:00 am-6:04 pm

2 stops14h 04m

Washington, D.C. Reagan-National

Sat 10/4

12:55 pm-10:35 am

3 stops16h 40m

$950

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Fri 9/26

9:00 am-11:07 pm

3 stops19h 07m

Washington, D.C. Reagan-National

Fri 10/3

10:08 am-11:30 am

3 stops20h 22m

$1,563

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 10/4

9:00 am-3:20 pm

3 stops35h 20m

$424

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 10/4

9:00 am-10:34 pm

3 stops18h 34m

$669

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Best time to book a flight from Cardiff to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Cardiff 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 Cardiff to District of Columbia

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

Currently, July is the cheapest month in which you can book a flight from Cardiff to District of Columbia (average of $302). Flying from Cardiff to District of Columbia in April is currently the most expensive (average of $337). 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.

Related info for your journey

Find useful and relevant information for your journey from Cardiff 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.

  • What airport do you fly from for flights from Cardiff to District of Columbia?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly out of when you book flights from Cardiff to District of Columbia.

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

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

  • How can I find direct flights from Cardiff 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 Cardiff to District of Columbia.

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

    Yes. Cheapflights offers flight deals from Cardiff 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 Cardiff to District of Columbia?

    Currently, July is the cheapest month in which you can book a flight from Cardiff to District of Columbia (average of $302). Flying from Cardiff to District of Columbia in April is currently the most expensive (average of $337). 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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