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Cheap flights from Washington, D.C. Reagan-National Airport to Cardiff from $486

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 6/17. 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.
KLM Logo
12:55 pm - 9:50 am
DCA
-
CWL
15h 55m2 stops
KLM Logo
5:25 pm - 4:29 pm
CWL
-
DCA
28h 04m2 stops
$796KLM
Thu, Jan 29 - Thu, Feb 5
Delta Logo
11:06 am - 9:50 am
DCA
-
CWL
17h 44m2 stops
Delta Logo
10:20 am - 11:43 pm
CWL
-
DCA
18h 23m2 stops
$962Delta
Fri, Feb 13 - Fri, Feb 20

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
Jan 29
DCA12:55 pmWashington, D.C. Reagan-National
15h 55m
2 stops
CWL9:50 amCardiff Wales
Feb 5
CWL5:25 pmCardiff Wales
28h 04m
2 stops
DCA4:29 pmWashington, D.C. Reagan-National
$796
Find similar
KLM
Jan 3
DCA12:32 pmWashington, D.C. Reagan-National
16h 13m
2 stops
CWL9:45 amCardiff Wales
Jan 5
CWL5:15 pmCardiff Wales
28h 14m
2 stops
DCA4:29 pmWashington, D.C. Reagan-National
$2,238
Find similar

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 January 1, 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 1/29

12:55 pm-9:50 am

2 stops15h 55m

Cardiff Wales

Thu 2/5

5:25 pm-4:29 pm

2 stops28h 04m

$796

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 2/13

11:06 am-9:50 am

2 stops17h 44m

Cardiff Wales

Fri 2/20

10:20 am-11:43 pm

2 stops18h 23m

$962

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 6/17

12:59 pm-10:15 am

2 stops16h 16m

$486

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 6/15

10:00 am-10:15 am

2 stops19h 15m

$489

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 2/13

7:59 pm-9:45 am

2 stops32h 46m

$512

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 6/22

12:59 pm-10:15 am

2 stops16h 16m

$540

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Sun 6/21

12:59 pm-10:15 am

2 stops16h 16m

$556

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Thu 6/18

5:45 pm-10:15 am

2 stops35h 30m

$577

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 6/19

7:30 pm-5:05 pm

2 stops16h 35m

$761

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Tue 6/16

7:30 pm-4:45 pm

2 stops16h 15m

$797

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?

WestJet and Air Europa are the most popular carriers 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

15h 55m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Cardiff takes 15h 55m
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.
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  • 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 15h 55m, 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