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Cheap flights from Washington, D.C. Reagan-National Airport to Cardiff from $560

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Cardiff departing on 9/5. 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

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 11:25 pm
DCA
-
CWL
36h 25m
3 stops
Multiple Airlines Logo
11:15 pm - 10:34 pm
CWL
-
DCA
28h 19m
3 stops
$727Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
11:00 am - 11:25 pm
DCA
-
CWL
31h 25m
2 stops
Multiple Airlines Logo
11:15 pm - 7:59 pm
CWL
-
DCA
25h 44m
3 stops
$757Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
11:00 am - 11:25 pm
DCA
-
CWL
31h 25m
2 stops
Multiple Airlines Logo
11:15 pm - 10:34 pm
CWL
-
DCA
28h 19m
2 stops
$849Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
6:00 am - 10:20 pm
DCA
-
CWL
35h 20m
3 stops
Multiple Airlines Logo
10:50 pm - 12:14 pm
CWL
-
DCA
42h 24m
3 stops
$927Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
6:00 am - 10:20 pm
DCA
-
CWL
35h 20m
3 stops
Multiple Airlines Logo
10:50 pm - 10:34 pm
CWL
-
DCA
28h 44m
2 stops
$960Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
11:00 am - 10:20 pm
DCA
-
CWL
30h 20m
2 stops
Multiple Airlines Logo
10:50 pm - 10:34 pm
CWL
-
DCA
28h 44m
2 stops
$1,038Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Delta Logo
1:25 pm - 9:50 am
DCA
-
CWL
16h 25m
2 stops
Delta Logo
10:20 am - 11:28 pm
CWL
-
DCA
18h 08m
2 stops
$1,127Delta
Sun, Oct 25 - Wed, Nov 25
KLM Logo
5:00 pm - 9:50 am
DCA
-
CWL
12h 50m
2 stops
KLM Logo
10:20 am - 10:48 pm
CWL
-
DCA
17h 28m
2 stops
$1,128KLM
Sun, Oct 25 - Tue, Nov 24
Multiple Airlines Logo
10:13 am - 11:25 pm
DCA
-
CWL
32h 12m
2 stops
Multiple Airlines Logo
11:50 pm - 10:38 pm
CWL
-
DCA
26h 48m
2 stops
$1,143Multiple Airlines
Tue, Oct 20 - Sun, Oct 25
Multiple Airlines Logo
10:13 am - 11:25 pm
DCA
-
CWL
32h 12m
2 stops
Multiple Airlines Logo
11:50 pm - 9:59 pm
CWL
-
DCA
26h 09m
3 stops
$1,150Multiple Airlines
Tue, Oct 20 - Sun, Oct 25

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Delta flights from Washington, D.C. Reagan-National Airport to Cardiff

Our best Delta deals on Washington, D.C. Reagan-National Airport to Cardiff flight tickets
Delta
Oct 25
DCA1:25 pmWashington, D.C. Reagan-National
16h 25m
2 stops
CWL9:50 amCardiff Wales
Nov 25
CWL10:20 amCardiff Wales
18h 08m
2 stops
DCA11:28 pmWashington, D.C. Reagan-National
$1,127
Delta
Oct 25
DCA11:05 amWashington, D.C. Reagan-National
18h 45m
2 stops
CWL9:50 amCardiff Wales
Nov 23
CWL10:20 amCardiff Wales
18h 08m
2 stops
DCA11:28 pmWashington, D.C. Reagan-National
$1,177
Delta
Oct 23
DCA7:35 pmWashington, D.C. Reagan-National
16h 30m
2 stops
CWL5:05 pmCardiff Wales
Nov 26
CWL10:20 amCardiff Wales
18h 08m
2 stops
DCA11:28 pmWashington, D.C. Reagan-National
$1,191

KLM flights from Washington, D.C. Reagan-National Airport to Cardiff

Our best KLM deals on Washington, D.C. Reagan-National Airport to Cardiff flight tickets
KLM
Oct 25
DCA5:00 pmWashington, D.C. Reagan-National
12h 50m
2 stops
CWL9:50 amCardiff Wales
Nov 24
CWL10:20 amCardiff Wales
17h 28m
2 stops
DCA10:48 pmWashington, D.C. Reagan-National
$1,128
KLM
Oct 26
DCA3:15 pmWashington, D.C. Reagan-National
14h 35m
2 stops
CWL9:50 amCardiff Wales
Nov 22
CWL10:20 amCardiff Wales
18h 21m
2 stops
DCA11:41 pmWashington, D.C. Reagan-National
$1,178

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 July 28, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport 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

Tue 9/15

6:00 am-11:25 pm

3 stops36h 25m

Cardiff Wales

Tue 9/22

11:15 pm-10:34 pm

3 stops28h 19m

$727

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Tue 9/15

11:00 am-11:25 pm

2 stops31h 25m

Cardiff Wales

Tue 9/22

11:15 pm-7:59 pm

3 stops25h 44m

$757

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Tue 9/15

11:00 am-11:25 pm

2 stops31h 25m

Cardiff Wales

Tue 9/22

11:15 pm-10:34 pm

2 stops28h 19m

$849

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 9/10

6:00 am-10:20 pm

3 stops35h 20m

Cardiff Wales

Thu 9/17

10:50 pm-12:14 pm

3 stops42h 24m

$927

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 9/10

6:00 am-10:20 pm

3 stops35h 20m

Cardiff Wales

Thu 9/17

10:50 pm-10:34 pm

2 stops28h 44m

$960

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 9/10

11:00 am-10:20 pm

2 stops30h 20m

Cardiff Wales

Thu 9/17

10:50 pm-10:34 pm

2 stops28h 44m

$1,038

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Sun 10/25

1:25 pm-9:50 am

2 stops16h 25m

Cardiff Wales

Wed 11/25

10:20 am-11:28 pm

2 stops18h 08m

$1,127
Quickest round-trip

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Sun 10/25

5:00 pm-9:50 am

2 stops12h 50m

Cardiff Wales

Tue 11/24

10:20 am-10:48 pm

2 stops17h 28m

$1,128

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Tue 10/20

10:13 am-11:25 pm

2 stops32h 12m

Cardiff Wales

Sun 10/25

11:50 pm-10:38 pm

2 stops26h 48m

$1,143

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Tue 10/20

10:13 am-11:25 pm

2 stops32h 12m

Cardiff Wales

Sun 10/25

11:50 pm-9:59 pm

3 stops26h 09m

$1,150

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 Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National to Cardiff Wales?

Virgin Atlantic is the most popular carrier operating from Washington, D.C. Reagan-National to Cardiff Wales

When to book flights from Washington, D.C. Reagan-National Airport to Cardiff

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

Cheap Washington, D.C. Reagan-National Airport to Cardiff (DCA to CWL) flight deals and tips

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

Fastest flight time

13h 00m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Cardiff takes 13h 00m
There are no direct flights from Washington, D.C. Reagan-National Airport to Cardiff. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Cardiff.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Cardiff

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

    Cardiff Wales is 3539.9 mi away from Washington, D.C. Reagan-National. Flights usually cover this in 13h 00m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Cardiff Wales Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport 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.

Traveling to a place near Cardiff?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Cardiff. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Washington, D.C. to Cardiff flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Washington, D.C. and Cardiff by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Washington, D.C. to Cardiff flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cabin classes currently available on flights to Cardiff

List of cabin classes available on flights landing in Cardiff. Availability may vary depending on flight origin and airline.
First Class to Cardiff
Business Class to Cardiff