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.

£465 Cheap Flights from Cardiff to Washington, D.C. in 2025/26

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0 bags

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

Round-trip

One-way

Cheap return flights

17:25 - 17:05CWL-IAD

27h 40m1 stop

18:05 - 16:45IAD-CWL

17h 40m1 stop

£510KLM

Find Deal

Thu, 30 Oct - Thu, 6 Nov

17:25 - 23:01CWL-IAD

33h 36m2 stops

18:05 - 09:50IAD-CWL

10h 45m1 stop

£515Virgin Atlantic

Find Deal

Thu, 30 Oct - Thu, 6 Nov

10:20 - 23:08CWL-DCA

17h 48m2 stops

13:45 - 16:55DCA-CWL

22h 10m2 stops

£550Delta

Find Deal

Thu, 19 Feb - Mon, 23 Feb

17:25 - 23:02CWL-IAD

34h 37m2 stops

18:05 - 16:55IAD-CWL

17h 50m1 stop

£550Virgin Atlantic

Find Deal

Thu, 19 Feb - Mon, 23 Feb

10:20 - 23:08CWL-DCA

17h 48m2 stops

11:00 - 09:50DCA-CWL

17h 50m2 stops

£551Delta

Find Deal

Thu, 19 Feb - Mon, 23 Feb

10:20 - 12:00CWL-IAD

30h 40m2 stops

07:00 - 09:50IAD-CWL

21h 50m2 stops

£551Virgin Atlantic

Find Deal

Thu, 19 Feb - Mon, 23 Feb

10:20 - 20:15CWL-IAD

13h 55m2 stops

21:25 - 16:45IAD-CWL

14h 20m2 stops

£556KLM

Find Deal

Thu, 30 Oct - Thu, 6 Nov

10:20 - 22:59CWL-BWI

41h 39m2 stops

19:45 - 09:50BWI-CWL

33h 05m2 stops

£581Delta

Find Deal

Thu, 19 Feb - Mon, 23 Feb

17:25 - 22:00CWL-IAD

32h 35m3 stops

17:30 - 22:00IAD-CWL

23h 30m2 stops

£624Multiple Airlines

Find Deal

Thu, 30 Oct - Thu, 6 Nov

17:25 - 22:00CWL-IAD

32h 35m3 stops

09:45 - 22:00IAD-CWL

31h 15m3 stops

£763Multiple Airlines

Find Deal

Thu, 30 Oct - Thu, 6 Nov

KLM flights from Cardiff to Washington, D.C.

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

KLM

30 Oct

CWL17:25Cardiff Wales

27h 40m

1 stop

IAD17:05Washington, D.C. Dulles Intl

6 Nov

IAD18:05Washington, D.C. Dulles Intl

17h 40m

1 stop

CWL16:45Cardiff Wales

£510

Find similar

KLM

30 Oct

CWL10:20Cardiff Wales

13h 55m

2 stops

IAD20:15Washington, D.C. Dulles Intl

6 Nov

IAD21:25Washington, D.C. Dulles Intl

14h 20m

2 stops

CWL16:45Cardiff Wales

£556

Find similar

Virgin Atlantic flights from Cardiff to Washington, D.C.

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

Virgin Atlantic

30 Oct

CWL17:25Cardiff Wales

33h 36m

2 stops

IAD23:01Washington, D.C. Dulles Intl

6 Nov

IAD18:05Washington, D.C. Dulles Intl

10h 45m

1 stop

CWL09:50Cardiff Wales

£515

Find similar

Virgin Atlantic

19 Feb

CWL17:25Cardiff Wales

34h 37m

2 stops

IAD23:02Washington, D.C. Dulles Intl

23 Feb

IAD18:05Washington, D.C. Dulles Intl

17h 50m

1 stop

CWL16:55Cardiff Wales

£550

Find similar

Virgin Atlantic

19 Feb

CWL10:20Cardiff Wales

30h 40m

2 stops

IAD12:00Washington, D.C. Dulles Intl

23 Feb

IAD07:00Washington, D.C. Dulles Intl

21h 50m

2 stops

CWL09:50Cardiff Wales

£551

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 30/10

17:25-17:05

1 stop27h 40m

Washington, D.C. Dulles Intl

Thu 6/11

18:05-16:45

1 stop17h 40m

£510

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 30/10

17:25-23:01

2 stops33h 36m

Washington, D.C. Dulles Intl

Thu 6/11

18:05-09:50

1 stop10h 45m

£515

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 19/2

10:20-23:08

2 stops17h 48m

Washington, D.C. Reagan-National

Mon 23/2

13:45-16:55

2 stops22h 10m

£550

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 19/2

17:25-23:02

2 stops34h 37m

Washington, D.C. Dulles Intl

Mon 23/2

18:05-16:55

1 stop17h 50m

£550

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 19/2

10:20-23:08

2 stops17h 48m

Washington, D.C. Reagan-National

Mon 23/2

11:00-09:50

2 stops17h 50m

£551

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 19/2

10:20-12:00

2 stops30h 40m

Washington, D.C. Dulles Intl

Mon 23/2

07:00-09:50

2 stops21h 50m

£551

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 30/10

10:20-20:15

2 stops13h 55m

Washington, D.C. Dulles Intl

Thu 6/11

21:25-16:45

2 stops14h 20m

£556

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Thu 19/2

10:20-22:59

2 stops41h 39m

Baltimore/Washington

Mon 23/2

19:45-09:50

2 stops33h 05m

£581

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 30/10

17:25-22:00

3 stops32h 35m

Washington, D.C. Dulles Intl

Thu 6/11

17:30-22:00

2 stops23h 30m

£624

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 30/10

17:25-22:00

3 stops32h 35m

Washington, D.C. Dulles Intl

Thu 6/11

09:45-22:00

3 stops31h 15m

£763

Flights are sorted by cheapest return flights first.

Sorted 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.

Direct flights	None

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

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.. 13h 55m 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.

Laurel

College Park

Essex

Alexandria

Fairfax

Bethesda

Oxon Hill

Gettysburg

Cambridge

Ellicott City

Westminster

Arlington

Woodbridge

Owings Mills

Silver Spring

National Harbor

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.