How do I get Price Alerts for flights from Cardiff to Washington, D.C. Reagan-National Airport?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Cardiff from Washington, D.C. Reagan-National Airport . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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.

£670 Cheap Flights from Cardiff to Washington, D.C. Reagan-National Airport in 2026

Voted winner of Europe's Best Travel App 2023

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

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

11:35 - 12:00

CWL

DCA

29h 25m

2 stops

12:40 - 22:20

DCA

CWL

28h 40m

3 stops

£670Multiple Airlines

Thu, 20 Aug - Thu, 27 Aug

11:35 - 19:15

CWL

DCA

12h 40m

1 stop

12:40 - 22:20

DCA

CWL

28h 40m

3 stops

£673Multiple Airlines

Thu, 20 Aug - Thu, 27 Aug

09:45 - 23:09

CWL

DCA

18h 24m

2 stops

19:40 - 17:00

DCA

CWL

17h 20m

2 stops

£702Delta

Thu, 22 Oct - Wed, 28 Oct

11:35 - 19:15

CWL

DCA

12h 40m

1 stop

18:55 - 22:20

DCA

CWL

22h 25m

2 stops

£724Multiple Airlines

Thu, 20 Aug - Thu, 27 Aug

09:45 - 16:59

CWL

DCA

36h 14m

2 stops

10:05 - 09:15

DCA

CWL

18h 10m

2 stops

£797Delta

Mon, 20 Jul - Sun, 26 Jul

10:20 - 23:09

CWL

DCA

16h 49m

2 stops

15:15 - 09:50

DCA

CWL

13h 35m

2 stops

£821KLM

Mon, 26 Oct - Mon, 2 Nov

09:45 - 22:59

CWL

DCA

18h 14m

2 stops

12:55 - 09:15

DCA

CWL

15h 20m

2 stops

£831Delta

Thu, 6 Aug - Thu, 13 Aug

09:45 - 20:33

CWL

DCA

15h 48m

2 stops

12:55 - 09:15

DCA

CWL

15h 20m

2 stops

£836KLM

Tue, 4 Aug - Thu, 13 Aug

22:50 - 21:50

CWL

DCA

28h 00m

3 stops

06:00 - 13:00

DCA

CWL

27h 00m

3 stops

£908Multiple Airlines

Thu, 22 Oct - Wed, 28 Oct

22:50 - 21:50

CWL

DCA

28h 00m

3 stops

09:40 - 13:00

DCA

CWL

23h 20m

2 stops

£924Multiple Airlines

Thu, 22 Oct - Wed, 28 Oct

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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

26 Oct

CWL10:20Cardiff Wales

16h 49m

2 stops

DCA23:09Washington, D.C. Reagan-National

2 Nov

DCA15:15Washington, D.C. Reagan-National

13h 35m

2 stops

CWL09:50Cardiff Wales

£821

KLM

4 Aug

CWL09:45Cardiff Wales

15h 48m

2 stops

DCA20:33Washington, D.C. Reagan-National

13 Aug

DCA12:55Washington, D.C. Reagan-National

15h 20m

2 stops

CWL09:15Cardiff Wales

£836

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

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

Delta

22 Oct

CWL09:45Cardiff Wales

18h 24m

2 stops

DCA23:09Washington, D.C. Reagan-National

28 Oct

DCA19:40Washington, D.C. Reagan-National

17h 20m

2 stops

CWL17:00Cardiff Wales

£702

Delta

20 Jul

CWL09:45Cardiff Wales

36h 14m

2 stops

DCA16:59Washington, D.C. Reagan-National

26 Jul

DCA10:05Washington, D.C. Reagan-National

18h 10m

2 stops

CWL09:15Cardiff Wales

£797

Delta

6 Aug

CWL09:45Cardiff Wales

18h 14m

2 stops

DCA22:59Washington, D.C. Reagan-National

13 Aug

DCA17:29Washington, D.C. Reagan-National

18h 16m

2 stops

CWL16:45Cardiff Wales

£831

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

Thu 20/8

11:35-12:00

2 stops29h 25m

Washington, D.C. Reagan-National

Thu 27/8

12:40-22:20

3 stops28h 40m

£670

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 20/8

11:35-19:15

1 stop12h 40m

Washington, D.C. Reagan-National

Thu 27/8

12:40-22:20

3 stops28h 40m

£673

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 22/10

09:45-23:09

2 stops18h 24m

Washington, D.C. Reagan-National

Wed 28/10

19:40-17:00

2 stops17h 20m

£702

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 20/8

11:35-19:15

1 stop12h 40m

Washington, D.C. Reagan-National

Thu 27/8

18:55-22:20

2 stops22h 25m

£724

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 20/7

09:45-16:59

2 stops36h 14m

Washington, D.C. Reagan-National

Sun 26/7

10:05-09:15

2 stops18h 10m

£797

Fastest return journey

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 26/10

10:20-23:09

2 stops16h 49m

Washington, D.C. Reagan-National

Mon 2/11

15:15-09:50

2 stops13h 35m

£821

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 6/8

09:45-22:59

2 stops18h 14m

Washington, D.C. Reagan-National

Thu 13/8

12:55-09:15

2 stops15h 20m

£831

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Tue 4/8

09:45-20:33

2 stops15h 48m

Washington, D.C. Reagan-National

Thu 13/8

12:55-09:15

2 stops15h 20m

£836

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 22/10

22:50-21:50

3 stops28h 00m

Washington, D.C. Reagan-National

Wed 28/10

06:00-13:00

3 stops27h 00m

£908

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 22/10

22:50-21:50

3 stops28h 00m

Washington, D.C. Reagan-National

Wed 28/10

09:40-13:00

2 stops23h 20m

£924

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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	18h 24m
Direct flights	None

The fastest flight from Cardiff to Washington, D.C. Reagan-National Airport takes 18h 24m

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.

Search flight deals

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

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 18h 24m.
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.

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

How do I get Price Alerts for flights from Cardiff to Washington, D.C. Reagan-National Airport?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Cardiff from Washington, D.C. Reagan-National Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Cardiff to Washington, D.C. Reagan-National Airport with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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Linthicum Heights

National Harbor

Ellicott City

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Lexington Park

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Woodbridge

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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.