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Cheap flights from District of Columbia to Cardiff from $348

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 6/10. 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

Find the cheapest flights from District of Columbia to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:45 pm - 10:15 am
DCA
-
CWL
16h 30m
2 stops
Multiple Airlines Logo
10:10 pm - 10:19 am
CWL
-
DCA
41h 09m
3 stops
$747Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
12:45 pm - 10:50 pm
DCA
-
CWL
29h 05m
3 stops
Multiple Airlines Logo
10:10 pm - 10:19 am
CWL
-
DCA
41h 09m
3 stops
$767Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
6:55 pm - 10:15 am
DCA
-
CWL
10h 20m
1 stop
Multiple Airlines Logo
10:10 pm - 7:58 pm
CWL
-
DCA
26h 48m
2 stops
$783Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
12:45 pm - 10:15 am
DCA
-
CWL
16h 30m
2 stops
Multiple Airlines Logo
10:10 pm - 10:28 pm
CWL
-
DCA
29h 18m
2 stops
$786Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
9:45 am - 10:15 am
IAD
-
CWL
19h 30m
2 stops
Multiple Airlines Logo
10:10 pm - 8:29 pm
CWL
-
IAD
27h 19m
2 stops
$833Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
5:15 pm - 10:15 am
IAD
-
CWL
12h 00m
1 stop
Multiple Airlines Logo
10:10 pm - 8:29 pm
CWL
-
IAD
27h 19m
2 stops
$840Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
3:45 pm - 10:15 am
IAD
-
CWL
13h 30m
2 stops
Multiple Airlines Logo
10:10 pm - 9:13 pm
CWL
-
IAD
28h 03m
3 stops
$846Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
6:55 pm - 10:15 am
DCA
-
CWL
10h 20m
1 stop
Multiple Airlines Logo
11:35 am - 10:28 pm
CWL
-
DCA
15h 53m
1 stop
$865Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
8:15 am - 9:45 pm
IAD
-
CWL
32h 30m
3 stops
Multiple Airlines Logo
10:10 pm - 9:13 pm
CWL
-
IAD
28h 03m
3 stops
$933Multiple Airlines
Sun, May 17 - Mon, Jun 1
Multiple Airlines Logo
4:05 pm - 9:45 pm
IAD
-
CWL
24h 40m
2 stops
Multiple Airlines Logo
11:35 am - 10:46 am
CWL
-
IAD
28h 11m
1 stop
$961Multiple Airlines
Sun, May 17 - Mon, Jun 1

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Delta flights from District of Columbia to Cardiff

Our best Delta deals on District of Columbia to Cardiff flight tickets
Delta
May 17
IAD7:33 pmWashington, D.C. Dulles Intl
40h 12m
2 stops
CWL4:45 pmCardiff Wales
Jun 1
CWL9:45 amCardiff Wales
37h 58m
2 stops
IAD6:43 pmWashington, D.C. Dulles Intl
$1,205
Delta
Jul 13
DCA7:35 pmWashington, D.C. Reagan-National
16h 10m
2 stops
CWL4:45 pmCardiff Wales
Aug 3
CWL9:45 amCardiff Wales
18h 10m
2 stops
DCA10:55 pmWashington, D.C. Reagan-National
$1,724
Delta
May 18
DCA3:00 pmWashington, D.C. Reagan-National
13h 15m
2 stops
CWL9:15 amCardiff Wales
May 25
CWL9:45 amCardiff Wales
18h 39m
2 stops
DCA11:24 pmWashington, D.C. Reagan-National
$1,976

Virgin Atlantic flights from District of Columbia to Cardiff

Our best Virgin Atlantic deals on District of Columbia to Cardiff flight tickets
Virgin Atlantic
Apr 29
IAD6:10 pmWashington, D.C. Dulles Intl
10h 05m
1 stop
CWL9:15 amCardiff Wales
May 3
CWL9:50 amCardiff Wales
10h 45m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,288
Virgin Atlantic
May 30
IAD5:40 pmWashington, D.C. Dulles Intl
18h 05m
1 stop
CWL4:45 pmCardiff Wales
Jun 6
CWL9:45 amCardiff Wales
20h 06m
2 stops
IAD12:51 amWashington, D.C. Dulles Intl
$1,460

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated April 19, 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 round-trip

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 6/1

12:45 pm-10:15 am

2 stops16h 30m

Cardiff Wales

Mon 6/8

10:10 pm-10:19 am

3 stops41h 09m

$747

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 6/1

12:45 pm-10:50 pm

3 stops29h 05m

Cardiff Wales

Mon 6/8

10:10 pm-10:19 am

3 stops41h 09m

$767

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 6/1

6:55 pm-10:15 am

1 stop10h 20m

Cardiff Wales

Mon 6/8

10:10 pm-7:58 pm

2 stops26h 48m

$783

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 6/1

12:45 pm-10:15 am

2 stops16h 30m

Cardiff Wales

Mon 6/8

10:10 pm-10:28 pm

2 stops29h 18m

$786

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 6/1

9:45 am-10:15 am

2 stops19h 30m

Cardiff Wales

Mon 6/8

10:10 pm-8:29 pm

2 stops27h 19m

$833

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 6/1

5:15 pm-10:15 am

1 stop12h 00m

Cardiff Wales

Mon 6/8

10:10 pm-8:29 pm

2 stops27h 19m

$840

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 6/1

3:45 pm-10:15 am

2 stops13h 30m

Cardiff Wales

Mon 6/8

10:10 pm-9:13 pm

3 stops28h 03m

$846
Quickest round-trip

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 6/1

6:55 pm-10:15 am

1 stop10h 20m

Cardiff Wales

Mon 6/8

11:35 am-10:28 pm

1 stop15h 53m

$865

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 5/17

8:15 am-9:45 pm

3 stops32h 30m

Cardiff Wales

Mon 6/1

10:10 pm-9:13 pm

3 stops28h 03m

$933

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 5/17

4:05 pm-9:45 pm

2 stops24h 40m

Cardiff Wales

Mon 6/1

11:35 am-10:46 am

1 stop28h 11m

$961

Flights are sorted by cheapest round-trip 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 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.
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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 were last updated today.

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to Cardiff Wales Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cardiff Wales Airport. It is always advisable to seek 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 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 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 District of Columbia to Cardiff.

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 simply researching potential flights to Cardiff, momondo offers a useful price alert feature which will track prices for flights to Cardiff from District of Columbia and alert you when they change.

An easier way to manage your Cardiff trip

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Aer Lingus