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.

$882 Cheap Flights from Cardiff to District of Columbia in 2026

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 - 8:24 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

17h 54m2 stops Dublin Toronto Pearson Intl

8:30 pm - 10:50 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

21h 20m2 stops Reykjavik Keflavik Intl Dublin

$882Multiple Airlines

Sat, Sep 5 - Mon, Sep 21

7:30 am - 8:24 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

17h 54m2 stops Dublin Toronto Pearson Intl

8:30 pm - 10:50 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

21h 20m3 stops Reykjavik Keflavik Intl London Gatwick Dublin

$889Multiple Airlines

Sat, Sep 5 - Mon, Sep 21

9:45 am - 3:35 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

10h 50m1 stop Amsterdam Schiphol

6:10 pm - 4:45 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

17h 35m1 stop Amsterdam Schiphol

$899KLM

Sat, Sep 5 - Mon, Sep 21

5:35 pm - 3:35 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

27h 00m1 stop Amsterdam Schiphol

5:30 pm - 9:15 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

10h 45m1 stop Amsterdam Schiphol

$907KLM

Sat, Sep 12 - Sat, Sep 19

7:30 am - 8:24 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

17h 54m2 stops Dublin Toronto Pearson Intl

8:30 pm - 10:50 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

21h 20m2 stops Reykjavik Keflavik Intl Dublin

$914Multiple Airlines

Sat, Sep 5 - Mon, Sep 21

7:30 am - 8:24 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

17h 54m2 stops Dublin Toronto Pearson Intl

8:30 pm - 10:50 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

21h 20m3 stops Reykjavik Keflavik Intl London Gatwick Dublin

$922Multiple Airlines

Sat, Sep 5 - Mon, Sep 21

9:45 am - 3:35 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

10h 50m1 stop Amsterdam Schiphol

12:25 pm - 9:15 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

15h 50m2 stops New York John F Kennedy Intl Amsterdam Schiphol

$929Delta

Sat, Sep 5 - Mon, Sep 21

9:45 am - 10:59 pmCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

18h 14m2 stops Amsterdam Schiphol New York John F Kennedy Intl

11:40 am - 9:15 amDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

16h 35m2 stops Boston Logan Intl Amsterdam Schiphol

$934Delta

Sat, Sep 5 - Mon, Sep 21

11:35 am - 10:20 amCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

27h 45m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

11:00 am - 9:20 pmDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

29h 20m3 stops Toronto Pearson Intl Reykjavik Keflavik Intl Dublin

$939Multiple Airlines

Sat, Sep 12 - Sat, Sep 19

11:35 am - 10:20 amCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

27h 45m3 stops Toronto Pearson Intl Ottawa Montreal Pierre Elliott Trudeau Intl

11:00 am - 9:20 pmDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

29h 20m3 stops Toronto Pearson Intl Reykjavik Keflavik Intl Dublin

$947Multiple Airlines

Sat, Sep 12 - Sat, Sep 19

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KLM flights from Cardiff to District of Columbia

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

KLM

Sep 5

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Sep 21

IAD6:10 pmWashington, D.C. Dulles Intl

17h 35m

1 stop

CWL4:45 pmCardiff Wales

$899

KLM

Sep 12

CWL5:35 pmCardiff Wales

27h 00m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Sep 19

IAD5:30 pmWashington, D.C. Dulles Intl

10h 45m

1 stop

CWL9:15 amCardiff Wales

$907

Delta flights from Cardiff to District of Columbia

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

Delta

Sep 5

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Sep 21

IAD12:25 pmWashington, D.C. Dulles Intl

15h 50m

2 stops

CWL9:15 amCardiff Wales

$929

Delta

Sep 5

CWL9:45 amCardiff Wales

18h 14m

2 stops

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

Sep 21

DCA11:40 amWashington, D.C. Reagan-National

16h 35m

2 stops

CWL9:15 amCardiff Wales

$934

Delta

Sep 12

CWL9:45 amCardiff Wales

18h 29m

2 stops

IAD11:14 pmWashington, D.C. Dulles Intl

Sep 19

IAD6:26 pmWashington, D.C. Dulles Intl

17h 19m

2 stops

CWL4:45 pmCardiff Wales

$1,051

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 Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 9/5

7:30 am-8:24 pm

2 stops17h 54m

Washington, D.C. Dulles Intl

Mon 9/21

8:30 pm-10:50 pm

2 stops21h 20m

$882

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 9/5

7:30 am-8:24 pm

2 stops17h 54m

Washington, D.C. Dulles Intl

Mon 9/21

8:30 pm-10:50 pm

3 stops21h 20m

$889

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 9/5

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Mon 9/21

6:10 pm-4:45 pm

1 stop17h 35m

$899

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 9/12

5:35 pm-3:35 pm

1 stop27h 00m

Washington, D.C. Dulles Intl

Sat 9/19

5:30 pm-9:15 am

1 stop10h 45m

$907

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 9/5

7:30 am-8:24 pm

2 stops17h 54m

Washington, D.C. Dulles Intl

Mon 9/21

8:30 pm-10:50 pm

2 stops21h 20m

$914

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 9/5

7:30 am-8:24 pm

2 stops17h 54m

Washington, D.C. Dulles Intl

Mon 9/21

8:30 pm-10:50 pm

3 stops21h 20m

$922

Quickest round-trip

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 9/5

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Mon 9/21

12:25 pm-9:15 am

2 stops15h 50m

$929

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Sat 9/5

9:45 am-10:59 pm

2 stops18h 14m

Washington, D.C. Reagan-National

Mon 9/21

11:40 am-9:15 am

2 stops16h 35m

$934

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Sat 9/12

11:35 am-10:20 am

2 stops27h 45m

Washington, D.C. Reagan-National

Sat 9/19

11:00 am-9:20 pm

3 stops29h 20m

$939

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Sat 9/12

11:35 am-10:20 am

3 stops27h 45m

Washington, D.C. Reagan-National

Sat 9/19

11:00 am-9:20 pm

3 stops29h 20m

$947

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 53% 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	13h 22m
Direct flights	None

The fastest flight from Cardiff to District of Columbia takes 13h 22m

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.