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Cheap flights from Washington, D.C. to Cardiff from £609

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Cardiff departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Cardiff

Cheap return flights

These are some of the best return flight deals from Washington, D.C. to Cardiff that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington, D.C. to Cardiff.

Cheap last-minute flights

Planning a quick getaway from Washington, D.C. to Cardiff? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Cardiff, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Washington, D.C. to Cardiff

Find recent round-trip train or bus tickets from Washington, D.C. to Cardiff.

All round-trip flight deals to Cardiff

The cheapest plane tickets to Cardiff found on KAYAK recently.
17:35 - 16:55IAD-CWL
18h 20m1 stop
17:25 - 15:45CWL-IAD
27h 20m1 stop
£609KLM
Find Deal
Thu, 5 Dec - Thu, 12 Dec
17:35 - 16:55IAD-CWL
18h 20m1 stop
10:20 - 23:25CWL-IAD
18h 05m2 stops
£617KLM
Find Deal
Thu, 5 Dec - Thu, 12 Dec
12:05 - 09:55IAD-CWL
16h 50m2 stops
17:25 - 15:45CWL-IAD
27h 20m1 stop
£620KLM
Find Deal
Thu, 23 Jan - Mon, 27 Jan
12:00 - 09:50BWI-CWL
16h 50m2 stops
10:20 - 23:42CWL-BWI
18h 22m2 stops
£621Delta
Find Deal
Thu, 5 Dec - Thu, 12 Dec
09:49 - 09:50DCA-CWL
19h 01m2 stops
10:20 - 23:40CWL-DCA
18h 20m2 stops
£621Delta
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Thu, 5 Dec - Thu, 12 Dec
12:44 - 09:50IAD-CWL
16h 06m2 stops
10:20 - 23:25CWL-IAD
18h 05m2 stops
£621Delta
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Thu, 5 Dec - Thu, 12 Dec
19:10 - 11:30BWI-CWL
36h 20m3 stops
17:00 - 18:00CWL-BWI
29h 00m3 stops
Sun, 9 Mar - Thu, 20 Mar
21:55 - 07:55IAD-CWL
29h 00m2 stops
16:10 - 15:40CWL-IAD
28h 30m1 stop
Fri, 13 Dec - Fri, 20 Dec
20:30 - 11:30BWI-CWL
34h 00m2 stops
12:55 - 18:45CWL-BWI
34h 50m2 stops
£998British Airways
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Thu, 12 Dec - Thu, 19 Dec
18:00 - 12:25IAD-CWL
13h 25m2 stops
12:55 - 19:45CWL-IAD
35h 50m2 stops
£1,050British Airways
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Thu, 12 Dec - Thu, 19 Dec
20:30 - 12:25BWI-CWL
34h 55m3 stops
£1,217
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Wed, 9 Apr
22:45 - 12:25IAD-CWL
32h 40m2 stops
£1,291Aer Lingus
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Wed, 9 Apr
19:40 - 12:25IAD-CWL
35h 45m3 stops
£1,375
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Wed, 9 Apr
21:20 - 12:25BWI-CWL
34h 05m2 stops
£1,900British Airways
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Wed, 9 Apr
17:25 - 09:15IAD-CWL
10h 50m1 stop
£2,913Virgin Atlantic
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Wed, 9 Apr
10:30 - 09:15DCA-CWL
17h 45m2 stops
£2,916Delta
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Wed, 9 Apr
11:40 - 09:50BWI-CWL
17h 10m2 stops
10:20 - 00:28CWL-BWI
19h 08m2 stops
£620KLM
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Mon, 18 Nov - Mon, 25 Nov
17:35 - 16:55IAD-CWL
18h 20m1 stop
10:20 - 23:22CWL-IAD
18h 02m2 stops
£831KLM
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Sat, 16 Nov - Mon, 18 Nov
17:35 - 09:50IAD-CWL
11h 15m1 stop
17:25 - 15:45CWL-IAD
27h 20m1 stop
£870KLM
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Sat, 16 Nov - Mon, 18 Nov
13:59 - 09:50DCA-CWL
14h 51m2 stops
10:20 - 22:33CWL-DCA
17h 13m2 stops
£882KLM
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Sat, 16 Nov - Mon, 18 Nov
19:40 - 11:30IAD-CWL
34h 50m3 stops
16:05 - 18:25CWL-IAD
31h 20m3 stops
£1,199
Find Deal
Sat, 16 Nov - Mon, 18 Nov
19:40 - 11:30IAD-CWL
34h 50m3 stops
16:05 - 19:45CWL-IAD
32h 40m2 stops
£1,332
Find Deal
Sat, 16 Nov - Mon, 18 Nov
18:10 - 11:30BWI-CWL
36h 20m3 stops
12:00 - 18:30CWL-BWI
35h 30m3 stops
£1,360
Find Deal
Mon, 18 Nov - Mon, 25 Nov
17:10 - 20:10IAD-CWL
22h 00m2 stops
16:05 - 15:40CWL-IAD
28h 35m2 stops
£1,427
Find Deal
Sat, 16 Nov - Mon, 18 Nov
06:30 - 12:25DCA-CWL
24h 55m3 stops
12:00 - 09:29CWL-DCA
26h 29m3 stops
£2,475
Find Deal
Sat, 16 Nov - Mon, 18 Nov
20:30 - 19:45BWI-CWL
66h 15m3 stops
16:05 - 18:45CWL-BWI
55h 40m2 stops
£3,743
Find Deal
Mon, 18 Nov - Mon, 25 Nov

British Airways flights from Washington, D.C. to Cardiff

Our best British Airways deals on Washington, D.C. to Cardiff flight tickets
British Airways
12 Dec
BWI20:30Baltimore/Washington
34h 00m
2 stops
CWL11:30Cardiff Wales
19 Dec
CWL12:55Cardiff Wales
34h 50m
2 stops
BWI18:45Baltimore/Washington
British Airways
12 Dec
IAD18:00Washington, D.C. Dulles Intl
13h 25m
2 stops
CWL12:25Cardiff Wales
19 Dec
CWL12:55Cardiff Wales
35h 50m
2 stops
IAD19:45Washington, D.C. Dulles Intl
British Airways
13 Dec
IAD21:55Washington, D.C. Dulles Intl
33h 30m
2 stops
CWL12:25Cardiff Wales
20 Dec
CWL12:55Cardiff Wales
55h 40m
2 stops
IAD15:35Washington, D.C. Dulles Intl

KLM flights from Washington, D.C. to Cardiff

Our best KLM deals on Washington, D.C. to Cardiff flight tickets
KLM
5 Dec
IAD17:35Washington, D.C. Dulles Intl
18h 20m
1 stop
CWL16:55Cardiff Wales
12 Dec
CWL17:25Cardiff Wales
27h 20m
1 stop
IAD15:45Washington, D.C. Dulles Intl
KLM
5 Dec
IAD17:35Washington, D.C. Dulles Intl
18h 20m
1 stop
CWL16:55Cardiff Wales
12 Dec
CWL10:20Cardiff Wales
18h 05m
2 stops
IAD23:25Washington, D.C. Dulles Intl
KLM
23 Jan
IAD12:05Washington, D.C. Dulles Intl
16h 50m
2 stops
CWL09:55Cardiff Wales
27 Jan
CWL17:25Cardiff Wales
27h 20m
1 stop
IAD15:45Washington, D.C. Dulles Intl

How to get the cheapest flight ticket from Washington, D.C. to Cardiff

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and Cardiff?

What is the cheapest month to fly from Washington, D.C. to Cardiff?

February. The cheapest time of year to fly to Cardiff from Washington, D.C. is February. The most expensive is April.

What is the cheapest Washington, D.C. to Cardiff flight route?

Washington, D.C. Dulles Intl - Cardiff Wales. Fly from Washington, D.C. Dulles Intl to Cardiff Wales for the best Washington, D.C. - Cardiff flight prices

When to book flights from Washington, D.C. to Cardiff

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Cardiff according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. to Cardiff (WAS to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Cardiff

Best price found

£1,217

Fastest flight time

9h 45m

Direct flights

None

Airports in Cardiff

1 airport
The best one-way flight to Cardiff from Washington, D.C. in the past 72 hours is £1,217. The best return flight deal from Washington, D.C. to Cardiff found on momondo in the last 72 hours is £609.
The fastest flight from Washington, D.C. to Cardiff takes 9h 45m
There are no direct flights from Washington, D.C. to Cardiff. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Cardiff Wales Airport, Baltimore/Washington Airport - Cardiff Wales Airport and Washington, D.C. Dulles Intl Airport - Cardiff Wales Airport.
There is 1 airport near Cardiff: Cardiff Wales (CWL)

  • How far is Washington, D.C. to Cardiff Wales by plane?

    Washington, D.C. and Cardiff Wales are 3537.5 mi apart from one another. Flights usually cover this in 9h 45m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. to Cardiff Wales Airport?

    Prices for flights from Washington, D.C. to Cardiff Wales Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. to Cardiff Wales Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Cardiff?

Finding the right flight to Cardiff from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cardiff quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Cardiff with flexible booking policies on momondo?

Yes. All flights to Cardiff from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Cardiff?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Cardiff.

I’m not ready to book a flight from Washington, D.C. to Cardiff right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Cardiff, momondo offers a useful price alert feature which will track prices for flights to Cardiff from Washington, D.C. and alert you when they change.


An easier way to manage your Cardiff trip

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Airports servicing Wales