What is the cheapest airline that flies from Cardiff Wales to Washington, D.C.?

Virgin Atlantic is the most popular carrier operating from Cardiff Wales to Washington, D.C.

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. were last updated today.

How old do you have to be to fly from Cardiff Wales Airport to Washington, D.C.?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$638 Cheap Flights from Cardiff to Washington, D.C. in 2026

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

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:35 am - 10:31 pm

CWL

DCA

15h 56m

1 stop

6:00 am - 10:15 am

DCA

CWL

23h 15m

2 stops

$795Multiple Airlines

Sat, Jul 11 - Fri, Jul 17

11:35 am - 8:24 pm

CWL

IAD

13h 49m

1 stop

4:20 pm - 10:15 am

IAD

CWL

12h 55m

1 stop

$852Multiple Airlines

Sat, Jul 11 - Fri, Jul 17

11:35 am - 9:48 pm

CWL

DCA

15h 13m

2 stops

12:40 pm - 10:15 am

DCA

CWL

16h 35m

2 stops

$858Multiple Airlines

Mon, Jul 20 - Mon, Jul 27

11:35 am - 12:00 pm

CWL

DCA

29h 25m

2 stops

6:00 am - 10:15 am

DCA

CWL

23h 15m

2 stops

$885Multiple Airlines

Sat, Jul 11 - Fri, Jul 17

5:15 pm - 3:35 pm

CWL

IAD

27h 20m

1 stop

5:40 pm - 4:45 pm

IAD

CWL

18h 05m

1 stop

$1,268KLM

Sun, Jun 21 - Sun, Jun 28

5:15 pm - 3:35 pm

CWL

IAD

27h 20m

1 stop

5:40 pm - 4:45 pm

IAD

CWL

18h 05m

1 stop

$1,284KLM

Sun, Jun 21 - Sun, Jun 28

9:45 am - 10:29 pm

CWL

BWI

17h 44m

2 stops

6:21 am - 9:15 am

BWI

CWL

21h 54m

2 stops

$1,308Delta

Thu, Jul 9 - Thu, Jul 16

11:35 am - 9:29 pm

CWL

BWI

38h 54m

2 stops

10:33 am - 10:15 am

BWI

CWL

18h 42m

2 stops

$1,381WestJet

Mon, Jul 20 - Mon, Jul 27

11:35 am - 11:18 pm

CWL

BWI

16h 43m

2 stops

12:33 pm - 10:15 am

BWI

CWL

16h 42m

2 stops

$1,578WestJet

Sat, Jul 11 - Fri, Jul 17

5:15 pm - 11:18 pm

CWL

BWI

35h 03m

2 stops

9:39 am - 9:15 am

BWI

CWL

18h 36m

2 stops

$5,577Virgin Atlantic

Mon, Jul 20 - Mon, Jul 27

KLM flights from Cardiff to Washington, D.C.

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

KLM

Jun 21

CWL5:15 pmCardiff Wales

27h 20m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Jun 28

IAD5:40 pmWashington, D.C. Dulles Intl

18h 05m

1 stop

CWL4:45 pmCardiff Wales

$1,268

KLM

Jun 21

CWL5:15 pmCardiff Wales

27h 20m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Jun 28

IAD5:40 pmWashington, D.C. Dulles Intl

18h 05m

1 stop

CWL4:45 pmCardiff Wales

$1,284

KLM

Jun 21

CWL9:50 amCardiff Wales

10h 45m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Jun 28

IAD5:40 pmWashington, D.C. Dulles Intl

18h 05m

1 stop

CWL4:45 pmCardiff Wales

$1,319

Air France flights from Cardiff to Washington, D.C.

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

Air France

Jun 21

CWL5:15 pmCardiff Wales

27h 20m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Jun 28

IAD5:40 pmWashington, D.C. Dulles Intl

18h 05m

1 stop

CWL4:45 pmCardiff Wales

$1,285

Air France

Jul 20

CWL5:15 pmCardiff Wales

27h 20m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

Jul 27

IAD6:10 pmWashington, D.C. Dulles Intl

17h 35m

1 stop

CWL4:45 pmCardiff Wales

$5,551

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 7/11

11:35 am-10:31 pm

1 stop15h 56m

Washington, D.C. Reagan-National

Fri 7/17

6:00 am-10:15 am

2 stops23h 15m

$795

Quickest round-trip

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 7/11

11:35 am-8:24 pm

1 stop13h 49m

Washington, D.C. Dulles Intl

Fri 7/17

4:20 pm-10:15 am

1 stop12h 55m

$852

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 7/20

11:35 am-9:48 pm

2 stops15h 13m

Washington, D.C. Reagan-National

Mon 7/27

12:40 pm-10:15 am

2 stops16h 35m

$858

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 7/11

11:35 am-12:00 pm

2 stops29h 25m

Washington, D.C. Reagan-National

Fri 7/17

6:00 am-10:15 am

2 stops23h 15m

$885

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sun 6/21

5:15 pm-3:35 pm

1 stop27h 20m

Washington, D.C. Dulles Intl

Sun 6/28

5:40 pm-4:45 pm

1 stop18h 05m

$1,268

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sun 6/21

5:15 pm-3:35 pm

1 stop27h 20m

Washington, D.C. Dulles Intl

Sun 6/28

5:40 pm-4:45 pm

1 stop18h 05m

$1,284

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Thu 7/9

9:45 am-10:29 pm

2 stops17h 44m

Baltimore/Washington

Thu 7/16

6:21 am-9:15 am

2 stops21h 54m

$1,308

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Mon 7/20

11:35 am-9:29 pm

2 stops38h 54m

Baltimore/Washington

Mon 7/27

10:33 am-10:15 am

2 stops18h 42m

$1,381

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Sat 7/11

11:35 am-11:18 pm

2 stops16h 43m

Baltimore/Washington

Fri 7/17

12:33 pm-10:15 am

2 stops16h 42m

$1,578

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Mon 7/20

5:15 pm-11:18 pm

2 stops35h 03m

Baltimore/Washington

Mon 7/27

9:39 am-9:15 am

2 stops18h 36m

$5,577

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted 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

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Can stopping save me money on Cardiff to Washington, D.C. flights?

You could potentially save up to 7% on your flight if you consider stops on a Cardiff to Washington, D.C. flight.

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 round-trip 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	10h 45m
Direct flights	None

The fastest flight from Cardiff to Washington, D.C. takes 10h 45m

There are no direct flights from Cardiff to Washington, D.C.. There are no popular flight routes from Cardiff to Washington, D.C..

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Frequently asked questions about flying from Cardiff to Washington, D.C.

How far is Cardiff Wales to Washington, D.C. by plane?
A flight from Cardiff Wales to Washington, D.C. will travel around 3537.5 mi. In terms of flight time, this usually takes a little over 10h 45m.
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. were last updated today.
How old do you have to be to fly from Cardiff Wales Airport to Washington, D.C.?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Gaithersburg

Colonial Beach

Fredericksburg

Silver Spring

Rockville

Towson

Manassas

Linthicum Heights

Tysons

Springfield

Bethesda

Fairfax

College Park

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Why should I use momondo to find a flight deal from Cardiff to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cardiff to Washington, D.C. for you.

Can I find flights from Cardiff to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. 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 Washington, D.C.?

Once you have performed a search for Cardiff to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Cardiff to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Cardiff to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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Cheap flights from Cardiff to Washington, D.C. from $638

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to Washington, D.C. departing on 6/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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KLM flights from Cardiff to Washington, D.C.

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

Air France flights from Cardiff to Washington, D.C.

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

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How to get the cheapest flight ticket from Cardiff to Washington, D.C.

Can stopping save me money on Cardiff to Washington, D.C. flights?

What is the cheapest airline that flies from Cardiff Wales to Washington, D.C.?

When to book flights from Cardiff to Washington, D.C.

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

Direct flights

Frequently asked questions about flying from Cardiff to Washington, D.C.

Traveling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

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List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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