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.

£644 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.

07:30 - 22:28

CWL

DCA

19h 58m

2 stops

18:55 - 10:15

DCA

CWL

10h 20m

1 stop

£644Multiple Airlines

Sat, 6 Jun - Fri, 12 Jun

07:30 - 21:55

CWL

DCA

19h 25m

3 stops

18:55 - 10:15

DCA

CWL

10h 20m

1 stop

£651Multiple Airlines

Sat, 6 Jun - Fri, 12 Jun

11:35 - 18:13

CWL

DCA

11h 38m

1 stop

18:55 - 10:15

DCA

CWL

10h 20m

1 stop

£699Multiple Airlines

Sat, 6 Jun - Fri, 12 Jun

07:30 - 21:55

CWL

DCA

19h 25m

3 stops

06:00 - 10:15

DCA

CWL

23h 15m

2 stops

£728Multiple Airlines

Sat, 6 Jun - Fri, 12 Jun

07:30 - 21:55

CWL

DCA

19h 25m

3 stops

06:00 - 10:15

DCA

CWL

23h 15m

3 stops

£788Multiple Airlines

Sat, 6 Jun - Fri, 12 Jun

09:45 - 22:03

CWL

DCA

17h 18m

2 stops

11:00 - 09:15

DCA

CWL

17h 15m

2 stops

£4,503Delta

Sat, 6 Jun - Fri, 12 Jun

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

Sat 6/6

07:30-22:28

2 stops19h 58m

Washington, D.C. Reagan-National

Fri 12/6

18:55-10:15

1 stop10h 20m

£644

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

07:30-21:55

3 stops19h 25m

Washington, D.C. Reagan-National

Fri 12/6

18:55-10:15

1 stop10h 20m

£651

Fastest return journey

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

11:35-18:13

1 stop11h 38m

Washington, D.C. Reagan-National

Fri 12/6

18:55-10:15

1 stop10h 20m

£699

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

07:30-21:55

3 stops19h 25m

Washington, D.C. Reagan-National

Fri 12/6

06:00-10:15

2 stops23h 15m

£728

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

07:30-21:55

3 stops19h 25m

Washington, D.C. Reagan-National

Fri 12/6

06:00-10:15

3 stops23h 15m

£788

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

09:45-22:03

2 stops17h 18m

Washington, D.C. Reagan-National

Fri 12/6

11:00-09:15

2 stops17h 15m

£4,503

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	27h 58m
Direct flights	None

The fastest flight from Cardiff to Washington, D.C. Reagan-National Airport takes 27h 58m

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 27h 58m.
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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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.