Latest deals
Insights
FAQs
Price Alerts

Cheap flights from District of Columbia to Cardiff from £257

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 10/6. 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
0 bags
Voted winner of Europe's Best Travel App 2023

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
12:45 - 10:15
DCA
-
CWL
16h 30m
2 stops
Multiple Airlines Logo
22:10 - 10:19
CWL
-
DCA
41h 09m
3 stops
£552Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
12:45 - 22:50
DCA
-
CWL
29h 05m
3 stops
Multiple Airlines Logo
22:10 - 10:19
CWL
-
DCA
41h 09m
3 stops
£567Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
18:55 - 10:15
DCA
-
CWL
10h 20m
1 stop
Multiple Airlines Logo
22:10 - 19:58
CWL
-
DCA
26h 48m
2 stops
£579Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
12:45 - 10:15
DCA
-
CWL
16h 30m
2 stops
Multiple Airlines Logo
22:10 - 22:28
CWL
-
DCA
29h 18m
2 stops
£581Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
09:45 - 10:15
IAD
-
CWL
19h 30m
2 stops
Multiple Airlines Logo
22:10 - 20:29
CWL
-
IAD
27h 19m
2 stops
£616Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
17:15 - 10:15
IAD
-
CWL
12h 00m
1 stop
Multiple Airlines Logo
22:10 - 20:29
CWL
-
IAD
27h 19m
2 stops
£621Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
15:45 - 10:15
IAD
-
CWL
13h 30m
2 stops
Multiple Airlines Logo
22:10 - 21:13
CWL
-
IAD
28h 03m
3 stops
£626Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
18:55 - 10:15
DCA
-
CWL
10h 20m
1 stop
Multiple Airlines Logo
11:35 - 22:28
CWL
-
DCA
15h 53m
1 stop
£640Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
08:15 - 21:45
IAD
-
CWL
32h 30m
3 stops
Multiple Airlines Logo
22:10 - 21:13
CWL
-
IAD
28h 03m
3 stops
£690Multiple Airlines
Sun, 17 May - Mon, 1 Jun
Multiple Airlines Logo
16:05 - 21:45
IAD
-
CWL
24h 40m
2 stops
Multiple Airlines Logo
11:35 - 10:46
CWL
-
IAD
28h 11m
1 stop
£711Multiple Airlines
Sun, 17 May - Mon, 1 Jun

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

KLM flights from District of Columbia to Cardiff

Our best KLM deals on District of Columbia to Cardiff flight tickets
KLM
24 Sept
IAD17:40Washington, D.C. Dulles Intl
10h 35m
1 stop
CWL09:15Cardiff Wales
27 Sept
CWL09:50Cardiff Wales
10h 45m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£899
KLM
18 May
IAD18:10Washington, D.C. Dulles Intl
10h 05m
1 stop
CWL09:15Cardiff Wales
25 May
CWL17:15Cardiff Wales
27h 20m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£957
KLM
18 May
IAD18:10Washington, D.C. Dulles Intl
17h 35m
1 stop
CWL16:45Cardiff Wales
25 May
CWL17:15Cardiff Wales
27h 20m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£989

Delta flights from District of Columbia to Cardiff

Our best Delta deals on District of Columbia to Cardiff flight tickets
Delta
10 Sept
IAD12:30Washington, D.C. Dulles Intl
15h 45m
2 stops
CWL09:15Cardiff Wales
18 Sept
CWL09:45Cardiff Wales
10h 50m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£864
Delta
17 May
IAD19:33Washington, D.C. Dulles Intl
40h 12m
2 stops
CWL16:45Cardiff Wales
1 Jun
CWL09:45Cardiff Wales
37h 58m
2 stops
IAD18:43Washington, D.C. Dulles Intl
£891
Delta
24 Sept
IAD17:40Washington, D.C. Dulles Intl
18h 05m
1 stop
CWL16:45Cardiff Wales
27 Sept
CWL09:50Cardiff Wales
10h 45m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£897

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 18 April 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

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 1/6

12:45-10:15

2 stops16h 30m

Cardiff Wales

Mon 8/6

22:10-10:19

3 stops41h 09m

£552

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 1/6

12:45-22:50

3 stops29h 05m

Cardiff Wales

Mon 8/6

22:10-10:19

3 stops41h 09m

£567

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 1/6

18:55-10:15

1 stop10h 20m

Cardiff Wales

Mon 8/6

22:10-19:58

2 stops26h 48m

£579

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 1/6

12:45-10:15

2 stops16h 30m

Cardiff Wales

Mon 8/6

22:10-22:28

2 stops29h 18m

£581

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 1/6

09:45-10:15

2 stops19h 30m

Cardiff Wales

Mon 8/6

22:10-20:29

2 stops27h 19m

£616

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 1/6

17:15-10:15

1 stop12h 00m

Cardiff Wales

Mon 8/6

22:10-20:29

2 stops27h 19m

£621

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 1/6

15:45-10:15

2 stops13h 30m

Cardiff Wales

Mon 8/6

22:10-21:13

3 stops28h 03m

£626
Fastest return journey

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 1/6

18:55-10:15

1 stop10h 20m

Cardiff Wales

Mon 8/6

11:35-22:28

1 stop15h 53m

£640

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 17/5

08:15-21:45

3 stops32h 30m

Cardiff Wales

Mon 1/6

22:10-21:13

3 stops28h 03m

£690

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 17/5

16:05-21:45

2 stops24h 40m

Cardiff Wales

Mon 1/6

11:35-10:46

1 stop28h 11m

£711

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 is the most popular carrier 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 18/5
Mon 25/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport