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Cheap flights from Cardiff to Washington, D.C. Reagan-National Airport from £493

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — DCA
20 Aug — 27 Aug1
1 adult

Cheap flight deals from Cardiff to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Reagan-National (DCA). 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 15 August 2025.

Round-trip from

£671

One-way from

£493
KLM
  • KLM
  • 27/9-4/10
  • 4 total stops
  • 33h 11m total
  • Cardiff to Washington, D.C.
Search Deals
4/10
  • 4/10
  • 3 total stops
  • 18h 34m total
  • Cardiff to Washington, D.C.
Search Deals

Find flight deals from Cardiff to Reagan-National

Cheapest flights from Cardiff to Reagan-National
Explore the most affordable flight options available from Cardiff to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.

Sat 27/909:45CWL - DCA
2 stops18h 56mKLM
Sat 4/1014:00DCA - CWL
2 stops14h 15mKLM
Deal found 13/8£671
Sat 27/909:00CWL - DCA
2 stops14h 04mMultiple Airlines
Sat 4/1012:55DCA - CWL
3 stops16h 40mMultiple Airlines
Deal found 13/8£701
Mon 18/809:50CWL - DCA
2 stops15h 57mKLM
Mon 25/813:55DCA - CWL
2 stops14h 20mKLM
Deal found 13/8£1,364
Mon 18/812:00CWL - DCA
3 stops24h 49mMultiple Airlines
Mon 25/814:54DCA - CWL
3 stops15h 36mMultiple Airlines
Deal found 13/8£1,483

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Reagan-National 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 858,174 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from Cardiff to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Cardiff

Fly to

Reagan-National

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 27/9

09:45-23:41

2 stops18h 56m

Washington, D.C. Reagan-National

Sat 4/10

14:00-09:15

2 stops14h 15m

£671

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 27/9

09:00-18:04

2 stops14h 04m

Washington, D.C. Reagan-National

Sat 4/10

12:55-10:35

3 stops16h 40m

£701

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 4/10

09:00-22:34

3 stops18h 34m

£493

Flights are sorted by cheapest return flights first.

Deals found on 14/8

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

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Cardiff with our price prediction graph.
Estimated return 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 Cardiff to Reagan-National. 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 Washington, D.C. Reagan-National?

    For a flight from Cardiff to Washington, D.C. Reagan-National, you will be flying from 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 outbound flights to Washington, D.C. Reagan-National per day. 0 airlines have flights to Washington, D.C. Reagan-National from Cardiff Wales on a regular basis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Reagan-National 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 Washington, D.C. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from Cardiff to Washington, D.C. Reagan-National Airport (average of £625). Flying from Cardiff to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £856). 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

Travelling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
College Park
Laurel
Tysons

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Cheapflights does show flights with no change fees to all users. To see these options for flights from Cardiff to Reagan-National, users can toggle the no change fees filter when performing a flight search.

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