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

Search flight deals from Cardiff to Washington, D.C. . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Cardiff to Washington, D.C. 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.

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

Prices for flights from Cardiff Wales Airport to Washington, D.C. refresh daily.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£288 Cheap Flights from Cardiff to Washington, D.C. in 2025

1 adult

0 bags

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

Round-trip

One-way

Last minute

Cheap return flights

09:00 - 15:50CWL-IAD

11h 50m1 stop

17:20 - 10:35IAD-CWL

12h 15m1 stop

£522

Find Deal

Sa, 27 Sep - Sa, 4 Okt

09:00 - 17:40CWL-BWI

13h 40m2 stops

18:50 - 09:15BWI-CWL

33h 25m3 stops

£526

Find Deal

Sa, 27 Sep - Sa, 4 Okt

17:15 - 17:40CWL-BWI

29h 25m2 stops

18:50 - 16:45BWI-CWL

16h 55m2 stops

£594

Find Deal

Do, 25 Sep - Sa, 4 Okt

09:00 - 17:40CWL-BWI

13h 40m2 stops

18:50 - 20:10BWI-CWL

20h 20m2 stops

£614

Find Deal

Sa, 27 Sep - Sa, 4 Okt

09:45 - 15:35CWL-IAD

10h 50m1 stop

12:08 - 09:15IAD-CWL

16h 07m2 stops

£639Virgin Atlantic

Find Deal

Sa, 27 Sep - Sa, 4 Okt

09:45 - 19:37CWL-IAD

14h 52m2 stops

17:25 - 16:45IAD-CWL

18h 20m2 stops

£643Delta

Find Deal

Sa, 27 Sep - Sa, 4 Okt

07:55 - 17:40CWL-BWI

14h 45m2 stops

18:50 - 11:30BWI-CWL

35h 40m3 stops

£661

Find Deal

Do, 25 Sep - Sa, 4 Okt

09:50 - 22:57CWL-BWI

18h 07m2 stops

13:50 - 17:05BWI-CWL

22h 15m2 stops

£662Delta

Find Deal

Fr, 26 Sep - Fr, 3 Okt

09:45 - 23:41CWL-DCA

18h 56m2 stops

14:00 - 09:15DCA-CWL

14h 15m2 stops

£671KLM

Find Deal

Sa, 27 Sep - Sa, 4 Okt

09:00 - 21:12CWL-IAD

17h 12m3 stops

17:00 - 09:15IAD-CWL

35h 15m3 stops

£692

Find Deal

Sa, 27 Sep - Sa, 4 Okt

Delta flights from Cardiff to Washington, D.C.

Our best Delta deals on Cardiff to Washington, D.C. flight tickets

Delta

27 Sept

CWL09:45Cardiff Wales

14h 52m

2 stops

IAD19:37Washington, D.C. Dulles Intl

4 Oct

IAD17:25Washington, D.C. Dulles Intl

18h 20m

2 stops

CWL16:45Cardiff Wales

£643

Find similar

Delta

26 Sept

CWL09:50Cardiff Wales

18h 07m

2 stops

BWI22:57Baltimore/Washington

3 Oct

BWI13:50Baltimore/Washington

22h 15m

2 stops

CWL17:05Cardiff Wales

£662

Find similar

KLM flights from Cardiff to Washington, D.C.

Our best KLM deals on Cardiff to Washington, D.C. flight tickets

KLM

27 Sept

CWL09:45Cardiff Wales

18h 56m

2 stops

DCA23:41Washington, D.C. Reagan-National

4 Oct

DCA14:00Washington, D.C. Reagan-National

14h 15m

2 stops

CWL09:15Cardiff Wales

£671

Find similar

KLM

18 Aug

CWL09:50Cardiff Wales

15h 57m

2 stops

DCA20:47Washington, D.C. Reagan-National

25 Aug

DCA13:55Washington, D.C. Reagan-National

14h 20m

2 stops

CWL09:15Cardiff Wales

£1,364

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sa 27/9

09:00-15:50

1 stop11h 50m

Washington, D.C. Dulles Intl

Sa 4/10

17:20-10:35

1 stop12h 15m

£522

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Sa 27/9

09:00-17:40

2 stops13h 40m

Baltimore/Washington

Sa 4/10

18:50-09:15

3 stops33h 25m

£526

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Do 25/9

17:15-17:40

2 stops29h 25m

Baltimore/Washington

Sa 4/10

18:50-16:45

2 stops16h 55m

£594

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Sa 27/9

09:00-17:40

2 stops13h 40m

Baltimore/Washington

Sa 4/10

18:50-20:10

2 stops20h 20m

£614

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sa 27/9

09:45-15:35

1 stop10h 50m

Washington, D.C. Dulles Intl

Sa 4/10

12:08-09:15

2 stops16h 07m

£639

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sa 27/9

09:45-19:37

2 stops14h 52m

Washington, D.C. Dulles Intl

Sa 4/10

17:25-16:45

2 stops18h 20m

£643

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Do 25/9

07:55-17:40

2 stops14h 45m

Baltimore/Washington

Sa 4/10

18:50-11:30

3 stops35h 40m

£661

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Fr 26/9

09:50-22:57

2 stops18h 07m

Baltimore/Washington

Fr 3/10

13:50-17:05

2 stops22h 15m

£662

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sa 27/9

09:45-23:41

2 stops18h 56m

Washington, D.C. Reagan-National

Sa 4/10

14:00-09:15

2 stops14h 15m

£671

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sa 27/9

09:00-21:12

3 stops17h 12m

Washington, D.C. Dulles Intl

Sa 4/10

17:00-09:15

3 stops35h 15m

£692

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

When to book flights from Cardiff to Washington, D.C.

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

Estimated return price

Cheap Cardiff to Washington, D.C. (CWL to WAS) flight deals and tips

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

Best price found	£288
Fastest flight time	10h 50m
Direct flights	None
Airports in Washington, D.C.	3 airports

The best one-way flight to Washington, D.C. from Cardiff in the past 72 hours is £288. The best return flight deal from Cardiff to Washington, D.C. found on momondo in the last 72 hours is £522.

The fastest flight from Cardiff to Washington, D.C. takes 10h 50m

There are no direct flights from Cardiff to Washington, D.C.. Popular non-direct routes for this connection are Cardiff Wales Airport - Baltimore/Washington Airport, Cardiff Wales Airport - Washington, D.C. Reagan-National Airport and Cardiff Wales Airport - Washington, D.C. Dulles Intl Airport.

There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

Search flight deals

How far is Cardiff Wales to Washington, D.C. by plane?
There are 3537.5 mi between Cardiff Wales and Washington, D.C.. 10h 50m is a normal flight duration for this route.
When did momondo last update prices for flights from Cardiff Wales Airport to Washington, D.C.?
Prices for flights from Cardiff Wales Airport to Washington, D.C. refresh daily.
How old do you have to be to fly from Cardiff Wales Airport to Washington, D.C.?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

How do I get Price Alerts for flights from Cardiff to Washington, D.C.?
Search flight deals from Cardiff to Washington, D.C.. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Cardiff to Washington, D.C. 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.?

Finding the right flight to Washington, D.C. from Cardiff is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Cardiff with this policy.

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

momondo helps you find the best flight between Cardiff and Washington, D.C. 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 Cardiff to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Cardiff to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.