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

WestJet and Delta are the most popular carriers 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.

$471 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.

10:10 pm - 3:35 pm

CWL

IAD

22h 25m

2 stops

9:45 pm - 10:50 pm

IAD

CWL

20h 05m

2 stops

$677Multiple Airlines

Mon, Apr 13 - Mon, Apr 20

5:15 pm - 7:20 pm

CWL

IAD

31h 05m

3 stops

8:30 pm - 10:50 pm

IAD

CWL

21h 20m

2 stops

$825Multiple Airlines

Mon, Apr 13 - Mon, Apr 20

5:15 pm - 3:10 pm

CWL

IAD

26h 55m

3 stops

8:30 pm - 10:50 pm

IAD

CWL

21h 20m

3 stops

$839Multiple Airlines

Mon, Apr 13 - Mon, Apr 20

4:55 pm - 7:00 pm

CWL

IAD

31h 05m

2 stops

5:15 pm - 10:20 pm

IAD

CWL

24h 05m

1 stop

$1,009Multiple Airlines

Thu, Apr 30 - Thu, May 7

9:45 am - 3:35 pm

CWL

IAD

10h 50m

1 stop

12:45 pm - 9:15 am

IAD

CWL

15h 30m

2 stops

$1,035Virgin Atlantic

Mon, Apr 13 - Mon, Apr 20

9:45 am - 10:50 pm

CWL

DCA

18h 05m

2 stops

11:00 am - 9:15 am

DCA

CWL

17h 15m

2 stops

$1,040Delta

Mon, Apr 13 - Mon, Apr 20

9:45 am - 3:35 pm

CWL

IAD

10h 50m

1 stop

5:40 pm - 9:15 am

IAD

CWL

10h 35m

1 stop

$1,047KLM

Thu, Apr 30 - Thu, May 7

9:45 am - 3:35 pm

CWL

IAD

10h 50m

1 stop

12:45 pm - 9:15 am

IAD

CWL

15h 30m

2 stops

$1,072Delta

Mon, Apr 13 - Mon, Apr 20

9:45 am - 9:05 pm

CWL

IAD

16h 20m

2 stops

1:32 pm - 9:15 am

IAD

CWL

14h 43m

2 stops

$1,076Multiple Airlines

Thu, Apr 30 - Thu, May 7

9:45 am - 10:41 pm

CWL

DCA

17h 56m

2 stops

11:00 am - 9:15 am

DCA

CWL

17h 15m

2 stops

$1,076Delta

Thu, Apr 30 - Thu, May 7

Delta flights from Cardiff to District of Columbia

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

Delta

Apr 13

CWL9:45 amCardiff Wales

18h 05m

2 stops

DCA10:50 pmWashington, D.C. Reagan-National

Apr 20

DCA11:00 amWashington, D.C. Reagan-National

17h 15m

2 stops

CWL9:15 amCardiff Wales

$1,040

Delta

Apr 13

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Apr 20

IAD12:45 pmWashington, D.C. Dulles Intl

15h 30m

2 stops

CWL9:15 amCardiff Wales

$1,072

Delta

Apr 30

CWL9:45 amCardiff Wales

17h 56m

2 stops

DCA10:41 pmWashington, D.C. Reagan-National

May 7

DCA11:00 amWashington, D.C. Reagan-National

17h 15m

2 stops

CWL9:15 amCardiff Wales

$1,076

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

Mon 4/13

10:10 pm-3:35 pm

2 stops22h 25m

Washington, D.C. Dulles Intl

Mon 4/20

9:45 pm-10:50 pm

2 stops20h 05m

$677

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 4/13

5:15 pm-7:20 pm

3 stops31h 05m

Washington, D.C. Dulles Intl

Mon 4/20

8:30 pm-10:50 pm

2 stops21h 20m

$825

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 4/13

5:15 pm-3:10 pm

3 stops26h 55m

Washington, D.C. Dulles Intl

Mon 4/20

8:30 pm-10:50 pm

3 stops21h 20m

$839

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 4/30

4:55 pm-7:00 pm

2 stops31h 05m

Washington, D.C. Dulles Intl

Thu 5/7

5:15 pm-10:20 pm

1 stop24h 05m

$1,009

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 4/13

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Mon 4/20

12:45 pm-9:15 am

2 stops15h 30m

$1,035

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 4/13

9:45 am-10:50 pm

2 stops18h 05m

Washington, D.C. Reagan-National

Mon 4/20

11:00 am-9:15 am

2 stops17h 15m

$1,040

Quickest round-trip

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 4/30

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Thu 5/7

5:40 pm-9:15 am

1 stop10h 35m

$1,047

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 4/13

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Mon 4/20

12:45 pm-9:15 am

2 stops15h 30m

$1,072

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 4/30

9:45 am-9:05 pm

2 stops16h 20m

Washington, D.C. Dulles Intl

Thu 5/7

1:32 pm-9:15 am

2 stops14h 43m

$1,076

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 4/30

9:45 am-10:41 pm

2 stops17h 56m

Washington, D.C. Reagan-National

Thu 5/7

11:00 am-9:15 am

2 stops17h 15m

$1,076

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

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	17h 37m
Direct flights	None

The fastest flight from Cardiff to District of Columbia takes 17h 37m

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

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.