What is the cheapest airline that flies from Cardiff Wales to District of Columbia?

Delta is the most popular carrier operating from Cardiff Wales to District of Columbia

When did momondo last update prices for flights from Cardiff Wales Airport to District of Columbia?

Prices for flights from Cardiff Wales Airport to District of Columbia were last updated today.

How old do you have to be to fly from Cardiff Wales Airport to District of Columbia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cardiff Wales Airport to District of Columbia.

What documentation or ID do you need to fly to District of Columbia?

The necessary travel and health documents for your District of Columbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$549 Cheap Flights from Cardiff to District of Columbia in 2026

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Find the cheapest flights from Cardiff to District of Columbia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 10:28 pm

CWL

DCA

19h 58m

2 stops

6:55 pm - 10:15 am

DCA

CWL

10h 20m

1 stop

$878Multiple Airlines

Sat, Jun 6 - Fri, Jun 12

7:30 am - 9:55 pm

CWL

DCA

19h 25m

3 stops

6:55 pm - 10:15 am

DCA

CWL

10h 20m

1 stop

$887Multiple Airlines

Sat, Jun 6 - Fri, Jun 12

11:35 am - 6:13 pm

CWL

DCA

11h 38m

1 stop

6:55 pm - 10:15 am

DCA

CWL

10h 20m

1 stop

$953Multiple Airlines

Sat, Jun 6 - Fri, Jun 12

11:30 pm - 8:29 pm

CWL

IAD

25h 59m

3 stops

8:18 am - 10:15 am

IAD

CWL

20h 57m

2 stops

$965Multiple Airlines

Wed, Jun 3 - Wed, Jun 10

11:30 pm - 8:35 pm

CWL

IAD

26h 05m

2 stops

8:18 am - 10:15 am

IAD

CWL

20h 57m

2 stops

$976Multiple Airlines

Wed, Jun 3 - Wed, Jun 10

11:30 pm - 8:29 pm

CWL

IAD

25h 59m

3 stops

8:18 am - 10:25 pm

IAD

CWL

33h 07m

3 stops

$992Multiple Airlines

Wed, Jun 3 - Wed, Jun 10

7:30 am - 9:55 pm

CWL

DCA

19h 25m

3 stops

6:00 am - 10:15 am

DCA

CWL

23h 15m

2 stops

$992Multiple Airlines

Sat, Jun 6 - Fri, Jun 12

11:30 pm - 8:35 pm

CWL

IAD

26h 05m

2 stops

9:55 am - 10:15 am

IAD

CWL

19h 20m

1 stop

$1,049Multiple Airlines

Wed, Jun 3 - Wed, Jun 10

9:45 am - 3:35 pm

CWL

IAD

10h 50m

1 stop

6:10 pm - 9:15 am

IAD

CWL

10h 05m

1 stop

$1,238KLM

Wed, Jun 3 - Wed, Jun 10

9:45 am - 10:03 pm

CWL

DCA

17h 18m

2 stops

11:00 am - 9:15 am

DCA

CWL

17h 15m

2 stops

$6,140Delta

Sat, Jun 6 - Fri, Jun 12

KLM flights from Cardiff to District of Columbia

Our best KLM deals on Cardiff to District of Columbia flight tickets

KLM

Jun 23

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Jun 30

IAD5:40 pmWashington, D.C. Dulles Intl

18h 05m

1 stop

CWL4:45 pmCardiff Wales

$1,243

KLM

Jun 6

CWL9:45 amCardiff Wales

14h 50m

2 stops

IAD7:35 pmWashington, D.C. Dulles Intl

Jun 12

IAD12:29 pmWashington, D.C. Dulles Intl

15h 46m

2 stops

CWL9:15 amCardiff Wales

$5,962

WestJet flights from Cardiff to District of Columbia

Our best WestJet deals on Cardiff to District of Columbia flight tickets

WestJet

Jun 18

CWL11:35 amCardiff Wales

35h 35m

2 stops

IAD6:10 pmWashington, D.C. Dulles Intl

Jun 22

IAD7:00 pmWashington, D.C. Dulles Intl

58h 15m

2 stops

CWL10:15 amCardiff Wales

$1,553

WestJet

Jun 18

CWL11:35 amCardiff Wales

35h 35m

2 stops

IAD6:10 pmWashington, D.C. Dulles Intl

Jun 22

IAD7:00 pmWashington, D.C. Dulles Intl

58h 15m

2 stops

CWL10:15 amCardiff Wales

$1,582

WestJet

Jun 18

CWL11:35 amCardiff Wales

35h 35m

2 stops

IAD6:10 pmWashington, D.C. Dulles Intl

Jun 22

IAD7:00 pmWashington, D.C. Dulles Intl

58h 15m

2 stops

CWL10:15 amCardiff Wales

$1,712

momondo Fare Finder

Use the filters below to find and compare flights from Cardiff to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

7:30 am-10:28 pm

2 stops19h 58m

Washington, D.C. Reagan-National

Fri 6/12

6:55 pm-10:15 am

1 stop10h 20m

$878

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

7:30 am-9:55 pm

3 stops19h 25m

Washington, D.C. Reagan-National

Fri 6/12

6:55 pm-10:15 am

1 stop10h 20m

$887

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

11:35 am-6:13 pm

1 stop11h 38m

Washington, D.C. Reagan-National

Fri 6/12

6:55 pm-10:15 am

1 stop10h 20m

$953

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 6/3

11:30 pm-8:29 pm

3 stops25h 59m

Washington, D.C. Dulles Intl

Wed 6/10

8:18 am-10:15 am

2 stops20h 57m

$965

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 6/3

11:30 pm-8:35 pm

2 stops26h 05m

Washington, D.C. Dulles Intl

Wed 6/10

8:18 am-10:15 am

2 stops20h 57m

$976

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 6/3

11:30 pm-8:29 pm

3 stops25h 59m

Washington, D.C. Dulles Intl

Wed 6/10

8:18 am-10:25 pm

3 stops33h 07m

$992

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

7:30 am-9:55 pm

3 stops19h 25m

Washington, D.C. Reagan-National

Fri 6/12

6:00 am-10:15 am

2 stops23h 15m

$992

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 6/3

11:30 pm-8:35 pm

2 stops26h 05m

Washington, D.C. Dulles Intl

Wed 6/10

9:55 am-10:15 am

1 stop19h 20m

$1,049

Quickest round-trip

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 6/3

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Wed 6/10

6:10 pm-9:15 am

1 stop10h 05m

$1,238

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/6

9:45 am-10:03 pm

2 stops17h 18m

Washington, D.C. Reagan-National

Fri 6/12

11:00 am-9:15 am

2 stops17h 15m

$6,140

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Cardiff to District of Columbia

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 District of Columbia flights?

You could potentially save up to 7% on your flight if you consider stops on a Cardiff to District of Columbia flight.

Cheap Cardiff to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to District of Columbia

Fastest flight time	19h 58m
Direct flights	None

The fastest flight from Cardiff to District of Columbia takes 19h 58m

There are no direct flights from Cardiff to District of Columbia. There are no popular flight routes from Cardiff to District of Columbia.

Search flight deals

Frequently asked questions about flying from Cardiff to District of Columbia

When did momondo last update prices for flights from Cardiff Wales Airport to District of Columbia?
Prices for flights from Cardiff Wales Airport to District of Columbia were last updated today.
How old do you have to be to fly from Cardiff Wales Airport to District of Columbia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cardiff Wales Airport to District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The necessary travel and health documents for your District of Columbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to District of Columbia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to District of Columbia from Cardiff.

Can I find flights from Cardiff to District of Columbia with flexible booking policies on momondo?

momondo does allow users to show only those flights to District of Columbia from Cardiff which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Cardiff to District of Columbia?

momondo helps you find the best flight between Cardiff and District of Columbia 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 District of Columbia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Cardiff to District of Columbia 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.