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.

£556 Cheap Flights from Cardiff to Washington, D.C. in 2026

1 adult

0 bags

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

Round-trip

One-way

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17:25 - 16:05

CWL

IAD

27h 40m

1 stop

19:52 - 09:50

IAD

CWL

32h 58m

2 stops

£556KLM

Sat, 28 Feb - Sat, 7 Mar

10:20 - 22:57

CWL

DCA

17h 37m

2 stops

10:59 - 09:50

DCA

CWL

17h 51m

2 stops

£607Delta

Sat, 28 Feb - Sat, 7 Mar

10:20 - 22:53

CWL

BWI

17h 33m

2 stops

17:30 - 16:45

BWI

CWL

42h 15m

2 stops

£678Virgin Atlantic

Sat, 28 Feb - Sat, 7 Mar

10:20 - 22:53

CWL

BWI

17h 33m

2 stops

10:49 - 09:50

BWI

CWL

18h 01m

2 stops

£700Delta

Sat, 28 Feb - Sat, 7 Mar

10:20 - 12:19

CWL

DCA

30h 59m

3 stops

09:40 - 16:50

DCA

CWL

26h 10m

2 stops

£781Multiple Airlines

Sat, 28 Feb - Sat, 7 Mar

17:25 - 18:45

CWL

IAD

30h 20m

3 stops

20:30 - 09:50

IAD

CWL

32h 20m

3 stops

£791Multiple Airlines

Sat, 28 Feb - Sat, 7 Mar

10:20 - 12:19

CWL

DCA

30h 59m

3 stops

06:00 - 16:50

DCA

CWL

29h 50m

3 stops

£805Multiple Airlines

Sat, 28 Feb - Sat, 7 Mar

17:25 - 16:05

CWL

IAD

27h 40m

1 stop

18:05 - 09:50

IAD

CWL

10h 45m

1 stop

£808Virgin Atlantic

Sat, 28 Feb - Sat, 7 Mar

17:25 - 18:45

CWL

IAD

30h 20m

3 stops

19:40 - 18:00

IAD

CWL

17h 20m

2 stops

£852Multiple Airlines

Sat, 28 Feb - Sat, 7 Mar

17:25 - 18:40

CWL

BWI

30h 15m

3 stops

19:40 - 18:00

BWI

CWL

17h 20m

2 stops

£943Multiple Airlines

Sat, 28 Feb - Sat, 7 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

28 Feb

CWL10:20Cardiff Wales

17h 33m

2 stops

BWI22:53Baltimore/Washington

7 Mar

BWI17:30Baltimore/Washington

42h 15m

2 stops

CWL16:45Cardiff Wales

£678

Virgin Atlantic

28 Feb

CWL17:25Cardiff Wales

27h 40m

1 stop

IAD16:05Washington, D.C. Dulles Intl

7 Mar

IAD18:05Washington, D.C. Dulles Intl

10h 45m

1 stop

CWL09:50Cardiff Wales

£808

Delta flights from Cardiff to Washington, D.C.

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

Delta

28 Feb

CWL10:20Cardiff Wales

17h 37m

2 stops

DCA22:57Washington, D.C. Reagan-National

7 Mar

DCA10:59Washington, D.C. Reagan-National

17h 51m

2 stops

CWL09:50Cardiff Wales

£607

Delta

28 Feb

CWL10:20Cardiff Wales

17h 33m

2 stops

BWI22:53Baltimore/Washington

7 Mar

BWI10:49Baltimore/Washington

18h 01m

2 stops

CWL09:50Cardiff Wales

£700

Fly from

Fly to

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 28/2

17:25-16:05

1 stop27h 40m

Washington, D.C. Dulles Intl

Sat 7/3

19:52-09:50

2 stops32h 58m

£556

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 28/2

10:20-22:57

2 stops17h 37m

Washington, D.C. Reagan-National

Sat 7/3

10:59-09:50

2 stops17h 51m

£607

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Sat 28/2

10:20-22:53

2 stops17h 33m

Baltimore/Washington

Sat 7/3

17:30-16:45

2 stops42h 15m

£678

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Sat 28/2

10:20-22:53

2 stops17h 33m

Baltimore/Washington

Sat 7/3

10:49-09:50

2 stops18h 01m

£700

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 28/2

10:20-12:19

3 stops30h 59m

Washington, D.C. Reagan-National

Sat 7/3

09:40-16:50

2 stops26h 10m

£781

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 28/2

17:25-18:45

3 stops30h 20m

Washington, D.C. Dulles Intl

Sat 7/3

20:30-09:50

3 stops32h 20m

£791

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 28/2

10:20-12:19

3 stops30h 59m

Washington, D.C. Reagan-National

Sat 7/3

06:00-16:50

3 stops29h 50m

£805

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 28/2

17:25-16:05

1 stop27h 40m

Washington, D.C. Dulles Intl

Sat 7/3

18:05-09:50

1 stop10h 45m

£808

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 28/2

17:25-18:45

3 stops30h 20m

Washington, D.C. Dulles Intl

Sat 7/3

19:40-18:00

2 stops17h 20m

£852

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Sat 28/2

17:25-18:40

3 stops30h 15m

Baltimore/Washington

Sat 7/3

19:40-18:00

2 stops17h 20m

£943

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, Virgin Atlantic and KLM 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 67% 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.

Fastest flight time	17h 33m
Direct flights	None

The fastest flight from Cardiff to Washington, D.C. takes 17h 33m

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.. 17h 33m 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).

Laurel

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Arlington

Linthicum Heights

Bethesda

Glen Burnie

Lutherville Timonium

Ellicott City

Cambridge

Westminster

Woodbridge

Silver Spring

Owings Mills

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.