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.

£658 Cheap Flights from Cardiff to Washington, D.C. in 2025/26

1 adult

0 bags

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

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One-way

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23:45 - 15:35CWL-IAD

20h 50m1 stop

21:00 - 20:55IAD-CWL

18h 55m1 stop

£658Multiple Airlines

Find Deal

Sat, 20 Dec - Sat, 27 Dec

20:15 - 16:15CWL-IAD

48h 00m3 stops

17:20 - 11:30IAD-CWL

13h 10m1 stop

£732Multiple Airlines

Find Deal

Sat, 21 Mar - Sun, 29 Mar

20:15 - 16:15CWL-IAD

48h 00m3 stops

09:00 - 11:30IAD-CWL

21h 30m2 stops

£737Multiple Airlines

Find Deal

Sat, 21 Mar - Sun, 29 Mar

10:20 - 09:16CWL-IAD

27h 56m2 stops

10:11 - 16:55IAD-CWL

25h 44m2 stops

£781Virgin Atlantic

Find Deal

Thu, 19 Feb - Mon, 23 Feb

10:20 - 22:43CWL-DCA

17h 23m2 stops

12:05 - 09:50DCA-CWL

16h 45m2 stops

£781Delta

Find Deal

Thu, 19 Feb - Mon, 23 Feb

10:20 - 19:11CWL-IAD

37h 51m2 stops

18:05 - 16:55IAD-CWL

17h 50m1 stop

£783Virgin Atlantic

Find Deal

Thu, 19 Feb - Mon, 23 Feb

10:20 - 22:48CWL-DCA

17h 28m2 stops

17:00 - 16:55DCA-CWL

18h 55m2 stops

£783Delta

Find Deal

Thu, 8 Jan - Fri, 16 Jan

10:20 - 11:52CWL-IAD

30h 32m2 stops

18:05 - 09:50IAD-CWL

10h 45m1 stop

£805Virgin Atlantic

Find Deal

Thu, 19 Feb - Mon, 23 Feb

10:20 - 22:59CWL-DCA

17h 39m2 stops

11:10 - 16:55DCA-CWL

24h 45m2 stops

£805Virgin Atlantic

Find Deal

Thu, 19 Feb - Mon, 23 Feb

12:00 - 19:45CWL-BWI

35h 45m2 stops

21:30 - 11:30BWI-CWL

33h 00m2 stops

£1,061British Airways

Find Deal

Sat, 21 Mar - Sun, 29 Mar

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

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

Virgin Atlantic

19 Feb

CWL10:20Cardiff Wales

27h 56m

2 stops

IAD09:16Washington, D.C. Dulles Intl

23 Feb

IAD10:11Washington, D.C. Dulles Intl

25h 44m

2 stops

CWL16:55Cardiff Wales

£781

Find similar

Virgin Atlantic

19 Feb

CWL10:20Cardiff Wales

37h 51m

2 stops

IAD19:11Washington, D.C. Dulles Intl

23 Feb

IAD18:05Washington, D.C. Dulles Intl

17h 50m

1 stop

CWL16:55Cardiff Wales

£783

Find similar

Virgin Atlantic

19 Feb

CWL10:20Cardiff Wales

30h 32m

2 stops

IAD11:52Washington, D.C. Dulles Intl

23 Feb

IAD18:05Washington, D.C. Dulles Intl

10h 45m

1 stop

CWL09:50Cardiff Wales

£805

Find similar

Delta flights from Cardiff to Washington, D.C.

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

Delta

19 Feb

CWL10:20Cardiff Wales

17h 23m

2 stops

DCA22:43Washington, D.C. Reagan-National

23 Feb

DCA12:05Washington, D.C. Reagan-National

16h 45m

2 stops

CWL09:50Cardiff Wales

£781

Find similar

Delta

8 Jan

CWL10:20Cardiff Wales

17h 28m

2 stops

DCA22:48Washington, D.C. Reagan-National

16 Jan

DCA17:00Washington, D.C. Reagan-National

18h 55m

2 stops

CWL16:55Cardiff Wales

£783

Find similar

Delta

21 Mar

CWL10:20Cardiff Wales

16h 48m

2 stops

DCA23:08Washington, D.C. Reagan-National

29 Mar

DCA11:00Washington, D.C. Reagan-National

17h 15m

2 stops

CWL09:15Cardiff Wales

£842

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 20/12

23:45-15:35

1 stop20h 50m

Washington, D.C. Dulles Intl

Sat 27/12

21:00-20:55

1 stop18h 55m

£658

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 21/3

20:15-16:15

3 stops48h 00m

Washington, D.C. Dulles Intl

Sun 29/3

17:20-11:30

1 stop13h 10m

£732

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 21/3

20:15-16:15

3 stops48h 00m

Washington, D.C. Dulles Intl

Sun 29/3

09:00-11:30

2 stops21h 30m

£737

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 19/2

10:20-09:16

2 stops27h 56m

Washington, D.C. Dulles Intl

Mon 23/2

10:11-16:55

2 stops25h 44m

£781

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 19/2

10:20-22:43

2 stops17h 23m

Washington, D.C. Reagan-National

Mon 23/2

12:05-09:50

2 stops16h 45m

£781

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 19/2

10:20-19:11

2 stops37h 51m

Washington, D.C. Dulles Intl

Mon 23/2

18:05-16:55

1 stop17h 50m

£783

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 8/1

10:20-22:48

2 stops17h 28m

Washington, D.C. Reagan-National

Fri 16/1

17:00-16:55

2 stops18h 55m

£783

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 19/2

10:20-11:52

2 stops30h 32m

Washington, D.C. Dulles Intl

Mon 23/2

18:05-09:50

1 stop10h 45m

£805

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 19/2

10:20-22:59

2 stops17h 39m

Washington, D.C. Reagan-National

Mon 23/2

11:10-16:55

2 stops24h 45m

£805

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Sat 21/3

12:00-19:45

2 stops35h 45m

Baltimore/Washington

Sun 29/3

21:30-11:30

2 stops33h 00m

£1,061

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Cardiff to Washington, D.C.

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

Which airlines fly to Washington, D.C.?

Aer Lingus, KLM and Virgin Atlantic are the top three most popular airlines that fly to Washington, D.C. from Cardiff according to our data. Aer Lingus is the first choice among our users, with 59% of people opting to fly with this airline when travelling to Washington, D.C.. Keep in mind that there are 3 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

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..

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How far is Cardiff Wales to Washington, D.C. by plane?
There are 3537.5 mi between Cardiff Wales and Washington, D.C.. 16h 48m 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.
What is the most popular airline from Cardiff to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Cardiff to Washington, D.C. is KLM (100% of total bookings).

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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.