How long does it take to fly to Cardiff?

If you’re flying from a popular airport in Washington, D.C., such as Washington, D.C. or Baltimore, and flying into Cardiff, then you can expect flight times to average 14h 50m and 15h 15m, respectively.

When did momondo last update prices for flights from Washington, D.C. to Cardiff Wales Airport?

Prices for flights from Washington, D.C. to Cardiff Wales Airport refresh daily.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Cardiff Wales Airport.

What documentation or ID do you need to fly to Cardiff Wales Airport?

The necessary travel and health documents for your Cardiff Wales Airport 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.

$338 Cheap Flights from Washington, D.C. to Cardiff in 2026

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

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 pm - 4:55 pm

DCA

CWL

18h 25m

2 stops

9:45 am - 9:41 pm

CWL

DCA

16h 56m

2 stops

$817Delta

Wed, Mar 25 - Wed, Apr 1

12:45 pm - 9:15 am

IAD

CWL

15h 30m

2 stops

5:15 pm - 3:35 pm

CWL

IAD

27h 20m

1 stop

$847KLM

Wed, May 6 - Wed, May 20

7:59 pm - 4:55 pm

IAD

CWL

16h 56m

2 stops

9:45 am - 3:35 pm

CWL

IAD

10h 50m

1 stop

$861Delta

Wed, Mar 25 - Wed, Apr 1

8:20 pm - 10:25 pm

IAD

CWL

21h 05m

2 stops

11:50 pm - 8:29 pm

CWL

IAD

25h 39m

2 stops

$878Multiple Airlines

Wed, May 6 - Wed, May 20

7:59 pm - 4:55 pm

IAD

CWL

16h 56m

2 stops

9:45 am - 11:41 pm

CWL

IAD

18h 56m

2 stops

$910Multiple Airlines

Wed, Mar 25 - Wed, Apr 1

11:52 am - 9:50 am

BWI

CWL

17h 58m

2 stops

5:15 pm - 11:01 pm

CWL

BWI

34h 46m

2 stops

$975Multiple Airlines

Wed, Mar 25 - Wed, Apr 1

7:59 pm - 4:55 pm

IAD

CWL

16h 56m

2 stops

9:45 am - 10:59 pm

CWL

IAD

18h 14m

2 stops

$981Delta

Wed, Mar 25 - Wed, Apr 1

7:05 pm - 9:50 am

IAD

CWL

10h 45m

1 stop

9:45 am - 3:35 pm

CWL

IAD

10h 50m

1 stop

$1,026Virgin Atlantic

Wed, Mar 25 - Wed, Apr 1

9:30 pm - 8:20 am

BWI

CWL

29h 50m

2 stops

12:00 pm - 7:40 pm

CWL

BWI

36h 40m

2 stops

$1,269Aer Lingus

Wed, May 6 - Wed, May 20

9:35 pm - 11:30 am

BWI

CWL

32h 55m

2 stops

12:00 pm - 7:45 pm

CWL

BWI

36h 45m

2 stops

$1,717Aer Lingus

Sun, Jun 7 - Sat, Jun 27

Delta flights from Washington, D.C. to Cardiff

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

Delta

Mar 25

DCA6:30 pmWashington, D.C. Reagan-National

18h 25m

2 stops

CWL4:55 pmCardiff Wales

Apr 1

CWL9:45 amCardiff Wales

16h 56m

2 stops

DCA9:41 pmWashington, D.C. Reagan-National

$817

Delta

Mar 25

IAD7:59 pmWashington, D.C. Dulles Intl

16h 56m

2 stops

CWL4:55 pmCardiff Wales

Apr 1

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$861

Delta

Mar 25

IAD7:59 pmWashington, D.C. Dulles Intl

16h 56m

2 stops

CWL4:55 pmCardiff Wales

Apr 1

CWL9:45 amCardiff Wales

18h 14m

2 stops

IAD10:59 pmWashington, D.C. Dulles Intl

$981

KLM flights from Washington, D.C. to Cardiff

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

KLM

May 6

IAD12:45 pmWashington, D.C. Dulles Intl

15h 30m

2 stops

CWL9:15 amCardiff Wales

May 20

CWL5:15 pmCardiff Wales

27h 20m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$847

KLM

Mar 25

BWI3:35 pmBaltimore/Washington

14h 15m

2 stops

CWL9:50 amCardiff Wales

Apr 1

CWL9:45 amCardiff Wales

15h 42m

2 stops

BWI8:27 pmBaltimore/Washington

$1,563

KLM

Mar 27

IAD7:05 pmWashington, D.C. Dulles Intl

17h 50m

1 stop

CWL4:55 pmCardiff Wales

Apr 3

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,902

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 3/25

6:30 pm-4:55 pm

2 stops18h 25m

Cardiff Wales

Wed 4/1

9:45 am-9:41 pm

2 stops16h 56m

$817

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 5/6

12:45 pm-9:15 am

2 stops15h 30m

Cardiff Wales

Wed 5/20

5:15 pm-3:35 pm

1 stop27h 20m

$847

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 3/25

7:59 pm-4:55 pm

2 stops16h 56m

Cardiff Wales

Wed 4/1

9:45 am-3:35 pm

1 stop10h 50m

$861

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 5/6

8:20 pm-10:25 pm

2 stops21h 05m

Cardiff Wales

Wed 5/20

11:50 pm-8:29 pm

2 stops25h 39m

$878

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 3/25

7:59 pm-4:55 pm

2 stops16h 56m

Cardiff Wales

Wed 4/1

9:45 am-11:41 pm

2 stops18h 56m

$910

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Wed 3/25

11:52 am-9:50 am

2 stops17h 58m

Cardiff Wales

Wed 4/1

5:15 pm-11:01 pm

2 stops34h 46m

$975

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 3/25

7:59 pm-4:55 pm

2 stops16h 56m

Cardiff Wales

Wed 4/1

9:45 am-10:59 pm

2 stops18h 14m

$981

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 3/25

7:05 pm-9:50 am

1 stop10h 45m

Cardiff Wales

Wed 4/1

9:45 am-3:35 pm

1 stop10h 50m

$1,026

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Wed 5/6

9:30 pm-8:20 am

2 stops29h 50m

Cardiff Wales

Wed 5/20

12:00 pm-7:40 pm

2 stops36h 40m

$1,269

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Sun 6/7

9:35 pm-11:30 am

2 stops32h 55m

Cardiff Wales

Sat 6/27

12:00 pm-7:45 pm

2 stops36h 45m

$1,717

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 Washington, D.C. to Cardiff

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

Airlines

Other information

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

KLM and Aer Lingus are the most popular carriers operating from Washington, D.C. to Cardiff Wales

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Cardiff according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Cardiff (WAS to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Cardiff

Fastest flight time	10h 35m
Direct flights	None

The fastest flight from Washington, D.C. to Cardiff takes 10h 35m

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

Search flight deals

How far is Washington, D.C. to Cardiff Wales by plane?
Cardiff Wales is 3537.5 mi away from Washington, D.C.. 10h 35m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Cardiff Wales Airport?
Prices for flights from Washington, D.C. to Cardiff Wales Airport refresh daily.
How old do you have to be to fly from Washington, D.C. to Cardiff Wales Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Cardiff Wales Airport.
What documentation or ID do you need to fly to Cardiff Wales Airport?
The necessary travel and health documents for your Cardiff Wales Airport 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.
What is the most popular airline from Washington, D.C. to Cardiff?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. to Cardiff is KLM (100% of total bookings).

Why use momondo?

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

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 Washington, D.C. to Cardiff for you.

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

Yes. All flights to Cardiff from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Cardiff?

momondo provides multiple filters to help you find the best flight to Cardiff from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Washington, D.C. to Cardiff flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Cardiff trip

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Aer Lingus

Cheap flights from Washington, D.C. to Cardiff from $338

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Cardiff departing on 4/2. 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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Big names and deals

Filter for what you want

Filter for what you want

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

Cheap round-trip flights

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Delta flights from Washington, D.C. to Cardiff

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

KLM flights from Washington, D.C. to Cardiff

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Cardiff that are best for you.

See travel insights to Cardiff from

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

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

How long does it take to fly to Cardiff?

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

Cheap Washington, D.C. to Cardiff (WAS to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Cardiff

Fastest flight time

Direct flights

Why use momondo?

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

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

How can momondo help me find flights from Washington, D.C. to Cardiff?

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

An easier way to manage your Cardiff trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly your favorite airline to Cardiff

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Cardiff

List of cabin classes available on flights landing in Cardiff. Availability may vary depending on flight origin and airline.

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Washington, D.C.

According to popular flight searches on momondo this year

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