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.

$496 Cheap Flights from Cardiff to District of Columbia in 2026

Find the cheapest flights from Cardiff to District of Columbia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:15 pm - 9:24 pm

CWL

IAD

27h 09m

3 stops

9:45 am - 10:50 pm

IAD

CWL

32h 05m

3 stops

$864Multiple Airlines

Tue, Aug 18 - Tue, Aug 25

11:15 pm - 9:26 pm

CWL

IAD

27h 11m

3 stops

4:20 pm - 10:15 am

IAD

CWL

12h 55m

1 stop

$878Multiple Airlines

Wed, Jul 22 - Wed, Jul 29

11:15 pm - 9:24 pm

CWL

IAD

27h 09m

3 stops

12:43 pm - 10:50 pm

IAD

CWL

29h 07m

2 stops

$890Multiple Airlines

Tue, Aug 18 - Tue, Aug 25

9:45 am - 3:35 pm

CWL

IAD

10h 50m

1 stop

6:10 pm - 9:15 am

IAD

CWL

10h 05m

1 stop

$907KLM

Wed, Jul 22 - Wed, Jul 29

10:10 pm - 10:45 am

CWL

IAD

41h 35m

2 stops

8:55 pm - 10:50 pm

IAD

CWL

20h 55m

1 stop

$914Multiple Airlines

Mon, Aug 3 - Mon, Aug 10

9:45 am - 3:35 pm

CWL

IAD

10h 50m

1 stop

6:59 pm - 9:15 am

IAD

CWL

33h 16m

2 stops

$919KLM

Wed, Jul 22 - Wed, Jul 29

5:15 pm - 3:35 pm

CWL

IAD

27h 20m

1 stop

5:40 pm - 9:15 am

IAD

CWL

10h 35m

1 stop

$929KLM

Sun, Aug 9 - Sun, Aug 16

5:15 pm - 11:26 pm

CWL

IAD

35h 11m

2 stops

10:16 am - 9:15 am

IAD

CWL

17h 59m

2 stops

$965Virgin Atlantic

Sun, Aug 9 - Sun, Aug 16

9:50 am - 10:59 pm

CWL

DCA

18h 09m

2 stops

6:30 pm - 4:45 pm

DCA

CWL

17h 15m

2 stops

$1,081Delta

Sun, Aug 9 - Sun, Aug 16

9:50 am - 10:59 pm

CWL

DCA

18h 09m

2 stops

6:30 pm - 4:45 pm

DCA

CWL

17h 15m

2 stops

$1,101Delta

Sun, Aug 9 - Sun, Aug 16

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

KLM flights from Cardiff to District of Columbia

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

KLM

Jul 2

CWL9:45 amCardiff Wales

18h 29m

2 stops

IAD11:14 pmWashington, D.C. Dulles Intl

Jul 6

IAD6:10 pmWashington, D.C. Dulles Intl

10h 05m

1 stop

CWL9:15 amCardiff Wales

$825

KLM

Jul 2

CWL9:45 amCardiff Wales

17h 18m

2 stops

DCA10:03 pmWashington, D.C. Reagan-National

Jul 6

DCA3:15 pmWashington, D.C. Reagan-National

13h 00m

2 stops

CWL9:15 amCardiff Wales

$873

KLM

Jul 22

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Jul 29

IAD6:10 pmWashington, D.C. Dulles Intl

10h 05m

1 stop

CWL9:15 amCardiff Wales

$907

Virgin Atlantic flights from Cardiff to District of Columbia

Our best Virgin Atlantic deals on Cardiff to District of Columbia flight tickets

Virgin Atlantic

Aug 9

CWL5:15 pmCardiff Wales

35h 11m

2 stops

IAD11:26 pmWashington, D.C. Dulles Intl

Aug 16

IAD10:16 amWashington, D.C. Dulles Intl

17h 59m

2 stops

CWL9:15 amCardiff Wales

$965

Virgin Atlantic

Aug 9

CWL5:15 pmCardiff Wales

35h 11m

2 stops

IAD11:26 pmWashington, D.C. Dulles Intl

Aug 16

IAD6:10 amWashington, D.C. Dulles Intl

29h 35m

2 stops

CWL4:45 pmCardiff Wales

$1,109

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 - IAD

CWLIAD

Cardiff Wales

Tue 8/18

11:15 pm-9:24 pm

3 stops27h 09m

Washington, D.C. Dulles Intl

Tue 8/25

9:45 am-10:50 pm

3 stops32h 05m

$864

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 7/22

11:15 pm-9:26 pm

3 stops27h 11m

Washington, D.C. Dulles Intl

Wed 7/29

4:20 pm-10:15 am

1 stop12h 55m

$878

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Tue 8/18

11:15 pm-9:24 pm

3 stops27h 09m

Washington, D.C. Dulles Intl

Tue 8/25

12:43 pm-10:50 pm

2 stops29h 07m

$890

Quickest round-trip

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 7/22

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Wed 7/29

6:10 pm-9:15 am

1 stop10h 05m

$907

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 8/3

10:10 pm-10:45 am

2 stops41h 35m

Washington, D.C. Dulles Intl

Mon 8/10

8:55 pm-10:50 pm

1 stop20h 55m

$914

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 7/22

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Wed 7/29

6:59 pm-9:15 am

2 stops33h 16m

$919

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sun 8/9

5:15 pm-3:35 pm

1 stop27h 20m

Washington, D.C. Dulles Intl

Sun 8/16

5:40 pm-9:15 am

1 stop10h 35m

$929

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sun 8/9

5:15 pm-11:26 pm

2 stops35h 11m

Washington, D.C. Dulles Intl

Sun 8/16

10:16 am-9:15 am

2 stops17h 59m

$965

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sun 8/9

9:50 am-10:59 pm

2 stops18h 09m

Washington, D.C. Reagan-National

Sun 8/16

6:30 pm-4:45 pm

2 stops17h 15m

$1,081

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sun 8/9

9:50 am-10:59 pm

2 stops18h 09m

Washington, D.C. Reagan-National

Sun 8/16

6:30 pm-4:45 pm

2 stops17h 15m

$1,101

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

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	17h 18m
Direct flights	None

The fastest flight from Cardiff to District of Columbia takes 17h 18m

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.