What is the cheapest airline that flies from Cardiff Wales to Washington, D.C.?

British Airways is the most popular carrier operating from Cardiff Wales to Washington, D.C.

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.

£472 Cheap Flights from Cardiff to Washington, D.C. 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.

22:50 - 21:24

CWL

IAD

27h 34m

2 stops

20:30 - 22:50

IAD

CWL

21h 20m

2 stops

£472Multiple Airlines

Thu, 27 Aug - Mon, 31 Aug

22:50 - 21:24

CWL

IAD

27h 34m

2 stops

20:30 - 09:15

IAD

CWL

31h 45m

3 stops

£551Multiple Airlines

Thu, 27 Aug - Mon, 31 Aug

09:45 - 23:37

CWL

DCA

18h 52m

2 stops

12:26 - 09:15

DCA

CWL

15h 49m

2 stops

£633Delta

Tue, 6 Oct - Tue, 13 Oct

09:45 - 22:48

CWL

BWI

18h 03m

2 stops

13:55 - 09:15

BWI

CWL

14h 20m

2 stops

£633Delta

Tue, 6 Oct - Tue, 13 Oct

09:45 - 00:31

CWL

IAD

19h 46m

2 stops

12:30 - 09:15

IAD

CWL

15h 45m

2 stops

£633Virgin Atlantic

Tue, 6 Oct - Tue, 13 Oct

17:30 - 19:10

CWL

IAD

29h 40m

2 stops

17:08 - 09:50

IAD

CWL

35h 42m

2 stops

£674Virgin Atlantic

Mon, 26 Oct - Mon, 2 Nov

17:30 - 16:45

CWL

IAD

27h 15m

1 stop

18:20 - 09:50

IAD

CWL

10h 30m

1 stop

£680KLM

Mon, 26 Oct - Mon, 2 Nov

17:30 - 16:17

CWL

IAD

26h 47m

2 stops

18:20 - 09:50

IAD

CWL

10h 30m

1 stop

£688KLM

Mon, 26 Oct - Mon, 2 Nov

12:00 - 19:45

CWL

BWI

35h 45m

2 stops

20:35 - 11:30

BWI

CWL

33h 55m

2 stops

£868British Airways

Mon, 26 Oct - Mon, 2 Nov

12:00 - 19:40

CWL

BWI

36h 40m

2 stops

21:30 - 11:30

BWI

CWL

33h 00m

2 stops

£893British Airways

Tue, 6 Oct - Tue, 13 Oct

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

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

Virgin Atlantic

6 Oct

CWL09:45Cardiff Wales

19h 46m

2 stops

IAD00:31Washington, D.C. Dulles Intl

13 Oct

IAD12:30Washington, D.C. Dulles Intl

15h 45m

2 stops

CWL09:15Cardiff Wales

£633

Virgin Atlantic

26 Oct

CWL17:30Cardiff Wales

29h 40m

2 stops

IAD19:10Washington, D.C. Dulles Intl

2 Nov

IAD17:08Washington, D.C. Dulles Intl

35h 42m

2 stops

CWL09:50Cardiff Wales

£674

British Airways flights from Cardiff to Washington, D.C.

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

British Airways

26 Oct

CWL12:00Cardiff Wales

35h 45m

2 stops

BWI19:45Baltimore/Washington

2 Nov

BWI20:35Baltimore/Washington

33h 55m

2 stops

CWL11:30Cardiff Wales

£868

British Airways

6 Oct

CWL12:00Cardiff Wales

32h 55m

2 stops

IAD15:55Washington, D.C. Dulles Intl

13 Oct

IAD17:45Washington, D.C. Dulles Intl

12h 45m

2 stops

CWL11:30Cardiff Wales

£885

British Airways

6 Oct

CWL12:00Cardiff Wales

36h 40m

2 stops

BWI19:40Baltimore/Washington

13 Oct

BWI21:30Baltimore/Washington

33h 00m

2 stops

CWL11:30Cardiff Wales

£893

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 27/8

22:50-21:24

2 stops27h 34m

Washington, D.C. Dulles Intl

Mon 31/8

20:30-22:50

2 stops21h 20m

£472

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 27/8

22:50-21:24

2 stops27h 34m

Washington, D.C. Dulles Intl

Mon 31/8

20:30-09:15

3 stops31h 45m

£551

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Tue 6/10

09:45-23:37

2 stops18h 52m

Washington, D.C. Reagan-National

Tue 13/10

12:26-09:15

2 stops15h 49m

£633

Fastest return journey

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Tue 6/10

09:45-22:48

2 stops18h 03m

Baltimore/Washington

Tue 13/10

13:55-09:15

2 stops14h 20m

£633

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Tue 6/10

09:45-00:31

2 stops19h 46m

Washington, D.C. Dulles Intl

Tue 13/10

12:30-09:15

2 stops15h 45m

£633

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 26/10

17:30-19:10

2 stops29h 40m

Washington, D.C. Dulles Intl

Mon 2/11

17:08-09:50

2 stops35h 42m

£674

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 26/10

17:30-16:45

1 stop27h 15m

Washington, D.C. Dulles Intl

Mon 2/11

18:20-09:50

1 stop10h 30m

£680

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 26/10

17:30-16:17

2 stops26h 47m

Washington, D.C. Dulles Intl

Mon 2/11

18:20-09:50

1 stop10h 30m

£688

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Mon 26/10

12:00-19:45

2 stops35h 45m

Baltimore/Washington

Mon 2/11

20:35-11:30

2 stops33h 55m

£868

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Tue 6/10

12:00-19:40

2 stops36h 40m

Baltimore/Washington

Tue 13/10

21:30-11:30

2 stops33h 00m

£893

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted 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

Prices

Airlines

Can stopping save me money on Cardiff to Washington, D.C. flights?

You could potentially save up to 61% on your flight if you consider stops on a Cardiff to Washington, D.C. flight.

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.

Fastest flight time	10h 50m
Direct flights	None

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

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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Frequently asked questions about flying from Cardiff to Washington, D.C.

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.

Alexandria

College Park

Springfield

Fairfax

Arlington

Gettysburg

Linthicum Heights

National Harbor

Ellicott City

Cambridge

Glen Burnie

Westminster

Laurel

Lutherville Timonium

Lexington Park

Owings Mills

Woodbridge

Bethesda

Silver Spring

Rockville

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.

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Cheap flights from Cardiff to Washington, D.C. from £329

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to Washington, D.C. departing on 28/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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

British Airways flights from Cardiff to Washington, D.C.

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

momondo Fare Finder

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See travel insights to Washington, D.C. from

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

Can stopping save me money on Cardiff to Washington, D.C. flights?

What is the cheapest airline that flies from Cardiff Wales to Washington, D.C.?

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

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.

Fastest flight time

Direct flights

Frequently asked questions about flying from Cardiff to Washington, D.C.

Travelling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

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