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Cheap flights from District of Columbia to Cardiff from £230

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Cardiff departing on 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from District of Columbia to Cardiff

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:50 - 10:15
IAD
-
CWL
13h 25m
1 stop
Multiple Airlines Logo
23:15 - 15:10
CWL
-
IAD
44h 55m
2 stops
£544Multiple Airlines
Mon, 3 Aug - Wed, 19 Aug
Multiple Airlines Logo
17:15 - 22:25
IAD
-
CWL
24h 10m
1 stop
Multiple Airlines Logo
23:15 - 10:45
CWL
-
IAD
40h 30m
2 stops
£570Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
06:00 - 10:15
DCA
-
CWL
23h 15m
2 stops
Multiple Airlines Logo
23:15 - 10:18
CWL
-
DCA
40h 03m
3 stops
£614Multiple Airlines
Mon, 3 Aug - Wed, 19 Aug
Multiple Airlines Logo
06:00 - 10:15
DCA
-
CWL
23h 15m
2 stops
Multiple Airlines Logo
23:15 - 22:31
CWL
-
DCA
28h 16m
2 stops
£623Multiple Airlines
Mon, 3 Aug - Wed, 19 Aug
Multiple Airlines Logo
12:40 - 10:15
DCA
-
CWL
16h 35m
2 stops
Multiple Airlines Logo
23:15 - 19:57
CWL
-
DCA
25h 42m
2 stops
£625Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
12:40 - 10:15
DCA
-
CWL
16h 35m
2 stops
Multiple Airlines Logo
23:15 - 21:48
CWL
-
DCA
27h 33m
3 stops
£628Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
20:55 - 21:45
IAD
-
CWL
19h 50m
1 stop
Multiple Airlines Logo
14:45 - 19:25
CWL
-
IAD
33h 40m
2 stops
£647Multiple Airlines
Sun, 23 Aug - Sun, 6 Sep
Multiple Airlines Logo
18:55 - 10:15
DCA
-
CWL
10h 20m
1 stop
Multiple Airlines Logo
23:15 - 18:12
CWL
-
DCA
23h 57m
2 stops
£653Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
20:55 - 22:25
IAD
-
CWL
20h 30m
1 stop
Multiple Airlines Logo
23:15 - 10:45
CWL
-
IAD
40h 30m
2 stops
£655Multiple Airlines
Wed, 5 Aug - Wed, 12 Aug
Multiple Airlines Logo
20:30 - 22:50
IAD
-
CWL
21h 20m
3 stops
Multiple Airlines Logo
23:15 - 20:24
CWL
-
IAD
26h 09m
2 stops
£659Multiple Airlines
Mon, 3 Aug - Wed, 19 Aug

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WestJet flights from District of Columbia to Cardiff

Our best WestJet deals on District of Columbia to Cardiff flight tickets
WestJet
1 Jul
DCA18:59Washington, D.C. Reagan-National
58h 16m
2 stops
CWL10:15Cardiff Wales
13 Jul
CWL11:35Cardiff Wales
16h 24m
2 stops
DCA22:59Washington, D.C. Reagan-National
£1,211
WestJet
1 Jul
DCA18:59Washington, D.C. Reagan-National
58h 16m
2 stops
CWL10:15Cardiff Wales
13 Jul
CWL11:35Cardiff Wales
16h 24m
2 stops
DCA22:59Washington, D.C. Reagan-National
£1,238

Delta flights from District of Columbia to Cardiff

Our best Delta deals on District of Columbia to Cardiff flight tickets
Delta
31 Aug
DCA11:50Washington, D.C. Reagan-National
16h 25m
2 stops
CWL09:15Cardiff Wales
9 Sept
CWL09:45Cardiff Wales
16h 36m
2 stops
DCA21:21Washington, D.C. Reagan-National
£877
Delta
31 Aug
DCA13:45Washington, D.C. Reagan-National
14h 30m
2 stops
CWL09:15Cardiff Wales
9 Sept
CWL09:45Cardiff Wales
17h 18m
2 stops
DCA22:03Washington, D.C. Reagan-National
£879
Delta
2 Aug
DCA18:30Washington, D.C. Reagan-National
17h 15m
2 stops
CWL16:45Cardiff Wales
11 Aug
CWL09:45Cardiff Wales
15h 48m
2 stops
DCA20:33Washington, D.C. Reagan-National
£903

momondo 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, momondo users made 279,928 searches. Data last updated 15 June 2026.
Use the filters below to find and compare flights from District of Columbia to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 3/8

15:50-10:15

1 stop13h 25m

Cardiff Wales

Wed 19/8

23:15-15:10

2 stops44h 55m

£544

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 12/8

17:15-22:25

1 stop24h 10m

Cardiff Wales

Wed 19/8

23:15-10:45

2 stops40h 30m

£570

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 3/8

06:00-10:15

2 stops23h 15m

Cardiff Wales

Wed 19/8

23:15-10:18

3 stops40h 03m

£614

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 3/8

06:00-10:15

2 stops23h 15m

Cardiff Wales

Wed 19/8

23:15-22:31

2 stops28h 16m

£623

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 12/8

12:40-10:15

2 stops16h 35m

Cardiff Wales

Wed 19/8

23:15-19:57

2 stops25h 42m

£625

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 12/8

12:40-10:15

2 stops16h 35m

Cardiff Wales

Wed 19/8

23:15-21:48

3 stops27h 33m

£628

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 23/8

20:55-21:45

1 stop19h 50m

Cardiff Wales

Sun 6/9

14:45-19:25

2 stops33h 40m

£647
Fastest return journey

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 12/8

18:55-10:15

1 stop10h 20m

Cardiff Wales

Wed 19/8

23:15-18:12

2 stops23h 57m

£653

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 5/8

20:55-22:25

1 stop20h 30m

Cardiff Wales

Wed 12/8

23:15-10:45

2 stops40h 30m

£655

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 3/8

20:30-22:50

3 stops21h 20m

Cardiff Wales

Wed 19/8

23:15-20:24

2 stops26h 09m

£659

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cardiff from

How to get the cheapest flight ticket from District of Columbia 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 cheapest airline that flies from District of Columbia to Cardiff Wales?

Delta and KLM are the most popular carriers operating from District of Columbia to Cardiff Wales

Cheap District of Columbia to Cardiff flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Cardiff

Fastest flight time

10h 05m

Direct flights

None
The fastest flight from District of Columbia to Cardiff takes 10h 05m
There are no direct flights from District of Columbia to Cardiff. There are no popular flight routes from District of Columbia to Cardiff.
Search flight deals

Frequently asked questions about flying from District of Columbia to Cardiff

  • When did momondo last update prices for flights from District of Columbia to Cardiff Wales Airport?

    Prices for flights from District of Columbia to Cardiff Wales Airport are updated daily.

  • How old do you have to be to fly from District of Columbia to Cardiff Wales Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Cardiff Wales Airport.

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

    The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Cardiff?

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

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Cardiff?

It is quick and easy to find District of Columbia to Cardiff flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cardiff that suits you.

Can I find flights from District of Columbia to Cardiff with flexible booking policies on momondo?

momondo does allow users to show only those flights to Cardiff from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Cardiff?

momondo provides multiple filters to help you find the best flight to Cardiff from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from District of Columbia to Cardiff right now. Can momondo alert me if prices change?

If you are not ready to book a flight from District of Columbia to Cardiff now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cardiff and let you know when they change.

An easier way to manage your Cardiff trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport