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Cheap flights from District of Columbia to Cardiff from £198

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CWL
31 Aug — 7 Sep1
1 adult

Cheap flight deals from District of Columbia to Cardiff

Keep the following information in mind while searching for District of Columbia to Cardiff flight deals. Data was last updated 26 August 2025.

Round-trip from

£522

One-way from

£198
9/10-16/10
  • 9/10-16/10
  • 2 total stops
  • 26h 35m total
  • District of Columbia to Cardiff
Search Deals
5/10
  • 5/10
  • 3 total stops
  • 41h 10m total
  • District of Columbia to Cardiff
Search Deals

Find flight deals from District of Columbia to Cardiff

Cheapest flights from District of Columbia to Cardiff
Explore the most affordable flight options available from District of Columbia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2025.

Thu 9/1020:25IAD - CWL
1 stop10h 35mMultiple Airlines
Thu 16/1007:55CWL - IAD
1 stop16h 00mMultiple Airlines
Deal found 24/8£522
Fri 5/917:25IAD - CWL
1 stop18h 40mKLM
Sun 14/909:50CWL - IAD
1 stop10h 45mKLM
Deal found 25/8£613
Fri 5/912:13IAD - CWL
2 stops15h 57mDelta
Sun 14/909:50CWL - IAD
1 stop10h 45mDelta
Deal found 25/8£616
Wed 12/1118:05IAD - CWL
1 stop10h 45mVirgin Atlantic
Sun 16/1117:30CWL - IAD
2 stops35h 48mVirgin Atlantic
Deal found 25/8£620
Wed 3/1213:30DCA - CWL
2 stops22h 25mDelta
Sun 7/1210:20CWL - DCA
2 stops37h 56mDelta
Deal found 25/8£623
Wed 12/1118:05IAD - CWL
1 stop10h 45mKLM
Sun 16/1117:30CWL - IAD
1 stop27h 35mKLM
Deal found 24/8£651
Fri 5/917:20IAD - CWL
1 stop9h 10mMultiple Airlines
Sun 14/911:00CWL - IAD
2 stops38h 50mMultiple Airlines
Deal found 25/8£688
Thu 18/917:25IAD - CWL
1 stop18h 20mKLM
Tue 30/917:15CWL - IAD
1 stop27h 20mKLM
Deal found 25/8£699
Thu 18/912:08IAD - CWL
2 stops16h 07mDelta
Tue 30/909:50CWL - IAD
1 stop10h 45mDelta
Deal found 25/8£702
Fri 5/911:00DCA - CWL
2 stops17h 10mDelta
Sun 14/909:50CWL - DCA
2 stops17h 10mDelta
Deal found 25/8£706
Thu 9/1006:00DCA - CWL
3 stops25h 00mMultiple Airlines
Thu 16/1007:55CWL - DCA
2 stops15h 09mMultiple Airlines
Deal found 25/8£870
Fri 5/918:45DCA - CWL
3 stops35h 45mMultiple Airlines
Sun 14/911:00CWL - DCA
3 stops28h 20mMultiple Airlines
Deal found 25/8£1,136

Cheapflights Fare Finder

 
Customise your flight search to find flights from District of Columbia 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 858,174 searches. Data last updated 26 August 2025.
Use the filters below to find and compare flights from District of Columbia to Cardiff that are best for you.

Fly from

District of Columbia

Fly to

Cardiff

Route

Depart

Return

Price

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Thu 9/10

20:25-12:00

1 stop10h 35m

Cardiff Wales

Thu 16/10

07:55-18:55

1 stop16h 00m

£522

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Thu 30/10

19:05-16:55

1 stop17h 50m

Cardiff Wales

Thu 13/11

17:25-16:05

1 stop27h 40m

£613

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 5/9

17:25-09:10

1 stop10h 45m

Cardiff Wales

Sun 14/9

09:50-15:35

1 stop10h 45m

£613

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 13/10

17:25-09:15

1 stop10h 50m

Cardiff Wales

Wed 22/10

17:15-15:35

1 stop27h 20m

£613

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 9/9

17:25-09:15

1 stop10h 50m

Cardiff Wales

Tue 23/9

17:15-15:35

1 stop27h 20m

£613

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 3/12

11:00-09:50

2 stops17h 50m

Cardiff Wales

Sun 7/12

10:20-23:04

2 stops17h 44m

£623

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 3/12

13:30-16:55

2 stops22h 25m

Cardiff Wales

Sun 7/12

17:30-17:27

2 stops28h 57m

£623

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 9/10

12:31-09:15

2 stops15h 44m

Cardiff Wales

Thu 16/10

09:50-22:40

2 stops17h 50m

£623

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 9/10

11:10-09:15

2 stops17h 05m

Cardiff Wales

Thu 16/10

09:50-18:59

2 stops14h 09m

£623

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 16/1

12:59-09:50

2 stops15h 51m

Cardiff Wales

Thu 22/1

10:20-23:08

2 stops17h 48m

£629

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 21 results
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Best time to book a flight from District of Columbia to Cardiff

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

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Cardiff
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

    Cardiff Wales (CWL) is the airport you will fly into if you book a flight from District of Columbia to Cardiff. It is only a 9.1 mi journey from Cardiff Wales (CWL) to Cardiff’s city center.

  • How long is the flight from District of Columbia to Cardiff?

    A quick flight from District of Columbia to Cardiff can take about 17h 50m. KLM provides one of the quickest options available for as low as £613. The distance from District of Columbia to Cardiff is about 3548 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from District of Columbia 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.

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

    Currently, July is the cheapest month in which you can book a flight from District of Columbia to Cardiff (average of £169). Flying from District of Columbia to Cardiff in December is currently the most expensive (average of £263). 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 Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

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Can Cheapflights notify me if prices for flights from District of Columbia to Cardiff become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Cardiff from District of Columbia today and book when prices fit your budget.

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