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

Prices for flights from Cardiff Wales Airport to Washington, D.C. Reagan-National Airport are updated daily.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to Washington, D.C. Reagan-National Airport.

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

The travel and health documents required for your trip to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£405 Cheap Flights from Cardiff to Washington, D.C. Reagan-National Airport in 2026

1 adult

0 bags

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Find the cheapest flights from Cardiff to Washington, D.C.

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

09:45 - 22:44

CWL

DCA

17h 59m

2 stops

19:59 - 16:45

DCA

CWL

15h 46m

2 stops

£803Delta

Mon, 11 May - Mon, 18 May

09:45 - 23:12

CWL

DCA

18h 27m

2 stops

12:00 - 09:15

DCA

CWL

16h 15m

2 stops

£841KLM

Wed, 9 Sep - Wed, 23 Sep

09:45 - 08:53

CWL

DCA

28h 08m

2 stops

06:00 - 16:45

DCA

CWL

29h 45m

3 stops

£934Multiple Airlines

Mon, 11 May - Mon, 18 May

09:45 - 10:19

CWL

DCA

29h 34m

3 stops

06:00 - 16:45

DCA

CWL

29h 45m

3 stops

£940Multiple Airlines

Mon, 11 May - Mon, 18 May

09:50 - 20:45

CWL

DCA

15h 55m

2 stops

15:00 - 09:15

DCA

CWL

13h 15m

2 stops

£1,040KLM

Sun, 10 May - Sun, 17 May

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

Our best KLM deals on Cardiff to Washington, D.C. Reagan-National Airport flight tickets

KLM

9 Sept

CWL09:45Cardiff Wales

18h 27m

2 stops

DCA23:12Washington, D.C. Reagan-National

23 Sept

DCA12:00Washington, D.C. Reagan-National

16h 15m

2 stops

CWL09:15Cardiff Wales

£841

KLM

10 May

CWL09:50Cardiff Wales

15h 55m

2 stops

DCA20:45Washington, D.C. Reagan-National

17 May

DCA15:00Washington, D.C. Reagan-National

13h 15m

2 stops

CWL09:15Cardiff Wales

£1,040

momondo Fare Finder

Use the filters below to find and compare flights from Cardiff to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 11/5

09:45-22:44

2 stops17h 59m

Washington, D.C. Reagan-National

Mon 18/5

19:59-16:45

2 stops15h 46m

£803

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Wed 9/9

09:45-23:12

2 stops18h 27m

Washington, D.C. Reagan-National

Wed 23/9

12:00-09:15

2 stops16h 15m

£841

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 11/5

09:45-08:53

2 stops28h 08m

Washington, D.C. Reagan-National

Mon 18/5

06:00-16:45

3 stops29h 45m

£934

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 11/5

09:45-10:19

3 stops29h 34m

Washington, D.C. Reagan-National

Mon 18/5

06:00-16:45

3 stops29h 45m

£940

Fastest return journey

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sun 10/5

09:50-20:45

2 stops15h 55m

Washington, D.C. Reagan-National

Sun 17/5

15:00-09:15

2 stops13h 15m

£1,040

Cheapest one-way

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 8/6

22:10-12:46

3 stops43h 36m

£405

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Wed 10/6

23:30-12:46

3 stops42h 16m

£432

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Tue 9/6

23:15-12:46

3 stops42h 31m

£435

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sun 7/6

21:45-16:20

3 stops47h 35m

£450

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Fri 12/6

22:45-12:46

3 stops43h 01m

£457

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Cardiff to Washington, D.C. Reagan-National Airport

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

WestJet and Delta are the most popular carriers operating from Cardiff Wales to Washington, D.C. Reagan-National

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

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

Estimated return price

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

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

Fastest flight time	15h 55m
Direct flights	None

The fastest flight from Cardiff to Washington, D.C. Reagan-National Airport takes 15h 55m

There are no direct flights from Cardiff to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Cardiff to Washington, D.C. Reagan-National Airport.

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How far is Cardiff Wales to Washington, D.C. Reagan-National by plane?
A flight from Cardiff Wales to Washington, D.C. Reagan-National will travel around 3539.9 mi. A reasonable flight in good conditions will take 15h 55m.
When did momondo last update prices for flights from Cardiff Wales Airport to Washington, D.C. Reagan-National Airport?
Prices for flights from Cardiff Wales Airport to Washington, D.C. Reagan-National Airport are updated daily.
How old do you have to be to fly from Cardiff Wales Airport to Washington, D.C. Reagan-National Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to Washington, D.C. Reagan-National Airport.
What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?
The travel and health documents required for your trip to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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Arlington

Fairfax

Linthicum Heights

Glen Burnie

Laurel

Lutherville Timonium

Ellicott City

Cambridge

Lexington Park

Westminster

Woodbridge

Bethesda

Alexandria

Silver Spring

Rockville

Owings Mills

Landover

National Harbor

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Cardiff to Washington, D.C. . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Washington, D.C. from Cardiff which offer a flexible booking policy as well as other useful filters and features.

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

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 Cardiff to Washington, D.C..

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

Yes momondo offers price alerts on flights to Washington, D.C. from Cardiff. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.