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Cheap flights from Washington, D.C. Reagan-National Airport to Cardiff from $385

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 7/15. 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. Reagan-National Airport to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
10:00 am - 9:15 am
DCA
-
CWL
18h 15m
2 stops
Delta Logo
9:45 am - 10:41 pm
CWL
-
DCA
17h 56m
2 stops
$815Delta
Thu, Apr 9 - Thu, Apr 16
Scandinavian Airlines Logo
5:05 pm - 4:55 pm
DCA
-
CWL
19h 50m
2 stops
Scandinavian Airlines Logo
9:50 am - 10:36 pm
CWL
-
DCA
41h 46m
2 stops
$850Scandinavian Airlines
Wed, Mar 25 - Sun, Mar 29
Delta Logo
7:00 pm - 4:45 pm
DCA
-
CWL
16h 45m
2 stops
Delta Logo
9:45 am - 10:50 pm
CWL
-
DCA
18h 05m
2 stops
$993Delta
Sat, Apr 11 - Sat, Apr 18
Delta Logo
11:00 am - 9:15 am
DCA
-
CWL
17h 15m
2 stops
Delta Logo
9:45 am - 10:41 pm
CWL
-
DCA
17h 56m
2 stops
$1,080Delta
Fri, Apr 10 - Fri, Apr 17
Delta Logo
11:00 am - 9:15 am
DCA
-
CWL
17h 15m
2 stops
Delta Logo
9:45 am - 10:41 pm
CWL
-
DCA
17h 56m
2 stops
$1,189Delta
Fri, Apr 10 - Fri, Apr 17
Delta Logo
1:45 pm - 9:50 am
DCA
-
CWL
16h 05m
2 stops
Delta Logo
9:45 am - 10:08 pm
CWL
-
DCA
17h 23m
2 stops
$1,210Delta
Thu, Mar 26 - Fri, Apr 3
Scandinavian Airlines Logo
12:16 pm - 9:50 am
DCA
-
CWL
17h 34m
2 stops
Scandinavian Airlines Logo
9:45 am - 11:44 pm
CWL
-
DCA
18h 59m
2 stops
$1,240Scandinavian Airlines
Thu, Mar 26 - Fri, Apr 3
Delta Logo
1:30 pm - 9:15 am
DCA
-
CWL
14h 45m
2 stops
Delta Logo
9:45 am - 11:26 pm
CWL
-
DCA
18h 41m
2 stops
$1,256Delta
Wed, Jul 8 - Mon, Jul 20
Multiple Airlines Logo
6:00 am - 10:05 am
DCA
-
CWL
24h 05m
3 stops
Multiple Airlines Logo
9:45 pm - 10:43 pm
CWL
-
DCA
29h 58m
2 stops
$1,362Multiple Airlines
Wed, Mar 25 - Sun, Mar 29
Multiple Airlines Logo
6:00 am - 10:05 am
DCA
-
CWL
24h 05m
3 stops
Multiple Airlines Logo
9:45 pm - 9:53 pm
CWL
-
DCA
29h 08m
3 stops
$1,370Multiple Airlines
Wed, Mar 25 - Sun, Mar 29

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
Apr 9
DCA10:00 amWashington, D.C. Reagan-National
18h 15m
2 stops
CWL9:15 amCardiff Wales
Apr 16
CWL9:45 amCardiff Wales
17h 56m
2 stops
DCA10:41 pmWashington, D.C. Reagan-National
$815
Delta
Apr 11
DCA7:00 pmWashington, D.C. Reagan-National
16h 45m
2 stops
CWL4:45 pmCardiff Wales
Apr 18
CWL9:45 amCardiff Wales
18h 05m
2 stops
DCA10:50 pmWashington, D.C. Reagan-National
$993
Delta
Apr 10
DCA11:00 amWashington, D.C. Reagan-National
17h 15m
2 stops
CWL9:15 amCardiff Wales
Apr 17
CWL9:45 amCardiff Wales
17h 56m
2 stops
DCA10:41 pmWashington, D.C. Reagan-National
$1,080

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

Our best Scandinavian Airlines deals on Washington, D.C. Reagan-National Airport to Cardiff flight tickets
Scandinavian Airlines
Mar 25
DCA5:05 pmWashington, D.C. Reagan-National
19h 50m
2 stops
CWL4:55 pmCardiff Wales
Mar 29
CWL9:50 amCardiff Wales
41h 46m
2 stops
DCA10:36 pmWashington, D.C. Reagan-National
$850
Scandinavian Airlines
Mar 26
DCA12:16 pmWashington, D.C. Reagan-National
17h 34m
2 stops
CWL9:50 amCardiff Wales
Apr 3
CWL9:45 amCardiff Wales
18h 59m
2 stops
DCA11:44 pmWashington, D.C. Reagan-National
$1,240

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 February 27, 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

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 4/9

10:00 am-9:15 am

2 stops18h 15m

Cardiff Wales

Thu 4/16

9:45 am-10:41 pm

2 stops17h 56m

$815

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 3/25

5:05 pm-4:55 pm

2 stops19h 50m

Cardiff Wales

Sun 3/29

9:50 am-10:36 pm

2 stops41h 46m

$850

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Sat 4/11

7:00 pm-4:45 pm

2 stops16h 45m

Cardiff Wales

Sat 4/18

9:45 am-10:50 pm

2 stops18h 05m

$993

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 4/10

11:00 am-9:15 am

2 stops17h 15m

Cardiff Wales

Fri 4/17

9:45 am-10:41 pm

2 stops17h 56m

$1,080

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 4/10

11:00 am-9:15 am

2 stops17h 15m

Cardiff Wales

Fri 4/17

9:45 am-10:41 pm

2 stops17h 56m

$1,189

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 3/26

1:45 pm-9:50 am

2 stops16h 05m

Cardiff Wales

Fri 4/3

9:45 am-10:08 pm

2 stops17h 23m

$1,210

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 3/26

12:16 pm-9:50 am

2 stops17h 34m

Cardiff Wales

Fri 4/3

9:45 am-11:44 pm

2 stops18h 59m

$1,240

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 7/8

1:30 pm-9:15 am

2 stops14h 45m

Cardiff Wales

Mon 7/20

9:45 am-11:26 pm

2 stops18h 41m

$1,256

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 3/25

6:00 am-10:05 am

3 stops24h 05m

Cardiff Wales

Sun 3/29

9:45 pm-10:43 pm

2 stops29h 58m

$1,362

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 3/25

6:00 am-10:05 am

3 stops24h 05m

Cardiff Wales

Sun 3/29

9:45 pm-9:53 pm

3 stops29h 08m

$1,370

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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?

KLM 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

16h 45m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Cardiff takes 16h 45m
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

  • 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 16h 45m, 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.

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