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$798+ Cheap flights from Reagan-National (DCA) to Cardiff (CWL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — CWL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Reagan-National to Cardiff

Cheapest flights from Reagan-National to Cardiff
Explore the most affordable flight options available from Reagan-National to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/302:35 pm
DCA
-
CWL
2 stops14h 15m
KLM
Sun 2/110:15 am
CWL
-
DCA
2 stops18h 26m
KLM
Deal found 1/26$798
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:05 am
DCA
-
CWL
2 stops18h 10m
Delta
Wed 5/279:45 am
CWL
-
DCA
2 stops18h 27m
Delta
Deal found 1/28$854
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:30 pm
DCA
-
CWL
2 stops18h 25m
Delta
Fri 3/2010:20 am
CWL
-
DCA
2 stops16h 16m
Delta
Deal found 1/27$970
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/134:10 pm
DCA
-
CWL
3 stops23h 30m
Multiple Airlines
Fri 3/2010:25 pm
CWL
-
DCA
3 stops27h 31m
Multiple Airlines
Deal found 1/27$1,108

Find flight deals from Reagan-National to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Cardiff (CWL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$854
(Delta)
Provider with most accurate pricing for Washington, D.C. (WAS)-Cardiff Wales flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Cardiff Wales flights.
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From Washington, D.C. Reagan-National to Cardiff Wales
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Cardiff 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, D.C. Reagan-National Airport to Cardiff that are best for you.

Fly from

Reagan-National

Fly to

Cardiff

Route

Depart

Return

Price

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 5/6

10:05 am-9:15 am

2 stops18h 10m

Cardiff Wales

Wed 5/27

9:45 am-11:12 pm

2 stops18h 27m

$854

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 3/13

6:30 pm-4:55 pm

2 stops18h 25m

Cardiff Wales

Fri 3/20

10:20 am-10:36 pm

2 stops16h 16m

$970

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 3/13

4:10 pm-7:40 pm

3 stops23h 30m

Cardiff Wales

Fri 3/20

10:25 pm-9:56 pm

3 stops27h 31m

$1,108

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Best time to book a flight from Reagan-National to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Reagan-National 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.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Cardiff. 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 into for flights to Cardiff from Washington, D.C. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Cardiff, you will be flying into Cardiff Wales. Cardiff Wales (CWL) is just 9.1 mi from the center of the city. Cardiff Wales is the only Cardiff airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Cardiff Wales from Washington, D.C. Reagan-National on a regular basis.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Cardiff?

    Delta can get you from Washington, D.C. Reagan-National Airport to Cardiff in just under 18h 10m. Your travel time can differ by up to . Airlines will cover a distance of 3535 mi.

  • Can I find deals for flights from Reagan-National to Cardiff that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Cardiff.

  • Can I find deals for business class flights from Reagan-National to Cardiff?

    Yes. Cheapflights offers flight deals from Reagan-National to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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