How long does it take to fly to Cardiff?

If you’re flying from a popular airport in Washington, D.C., such as Baltimore or Washington, D.C., and flying into Cardiff, then you can expect flight times to average 14h 30m and 18h 11m, respectively.

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

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

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.

$255 Cheap Flights from Washington, D.C. to Cardiff in 2026

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 pm - 9:20 pm

IAD

CWL

19h 40m

1 stop

7:30 am - 7:10 pm

CWL

IAD

16h 40m

1 stop

$794Multiple Airlines

Sat, Aug 29 - Sat, Sep 5

6:00 am - 10:50 pm

DCA

CWL

35h 50m

3 stops

11:35 am - 12:00 pm

CWL

DCA

29h 25m

2 stops

$850Multiple Airlines

Mon, Aug 31 - Mon, Sep 7

8:30 pm - 10:25 pm

IAD

CWL

20h 55m

3 stops

11:15 pm - 8:24 pm

CWL

IAD

26h 09m

3 stops

$880Multiple Airlines

Wed, Aug 19 - Tue, Aug 25

6:00 am - 10:15 am

DCA

CWL

23h 15m

2 stops

11:15 pm - 10:31 pm

CWL

DCA

28h 16m

3 stops

$883Multiple Airlines

Wed, Aug 19 - Tue, Aug 25

9:05 pm - 11:25 pm

IAD

CWL

21h 20m

1 stop

9:45 pm - 3:30 pm

CWL

IAD

22h 45m

2 stops

$892Multiple Airlines

Tue, Sep 1 - Tue, Sep 8

5:36 pm - 4:45 pm

BWI

CWL

18h 09m

2 stops

5:15 pm - 7:45 pm

CWL

BWI

31h 30m

2 stops

$1,144Air France

Tue, Sep 1 - Tue, Sep 8

10:40 am - 9:15 am

BWI

CWL

17h 35m

2 stops

9:45 am - 9:30 pm

CWL

BWI

16h 45m

2 stops

$1,177Delta

Mon, Aug 31 - Wed, Sep 9

10:40 am - 9:15 am

BWI

CWL

17h 35m

2 stops

9:45 am - 9:30 pm

CWL

BWI

16h 45m

2 stops

$1,179Delta

Mon, Aug 31 - Wed, Sep 9

6:20 pm - 9:15 am

BWI

CWL

57h 55m

2 stops

5:15 pm - 11:13 pm

CWL

BWI

34h 58m

2 stops

$1,224Virgin Atlantic

Sun, Aug 30 - Sun, Sep 6

12:30 pm - 9:15 am

BWI

CWL

15h 45m

2 stops

5:15 pm - 5:47 pm

CWL

BWI

29h 32m

2 stops

$1,230KLM

Fri, Aug 14 - Tue, Aug 18

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 Washington, D.C. to Cardiff

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

KLM

Aug 19

BWI1:45 pmBaltimore/Washington

14h 30m

2 stops

CWL9:15 amCardiff Wales

Aug 25

CWL9:45 amCardiff Wales

16h 28m

2 stops

BWI9:13 pmBaltimore/Washington

$1,131

KLM

Aug 31

IAD6:10 pmWashington, D.C. Dulles Intl

17h 35m

1 stop

CWL4:45 pmCardiff Wales

Sep 9

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,163

KLM

Aug 31

IAD6:10 pmWashington, D.C. Dulles Intl

17h 35m

1 stop

CWL4:45 pmCardiff Wales

Sep 9

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,164

Delta flights from Washington, D.C. to Cardiff

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

Delta

Aug 16

IAD7:19 pmWashington, D.C. Dulles Intl

40h 26m

2 stops

CWL4:45 pmCardiff Wales

Aug 31

CWL9:45 amCardiff Wales

53h 38m

2 stops

IAD10:23 amWashington, D.C. Dulles Intl

$1,136

Delta

Aug 31

IAD11:10 amWashington, D.C. Dulles Intl

17h 05m

2 stops

CWL9:15 amCardiff Wales

Sep 9

CWL9:45 amCardiff Wales

10h 50m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,169

Delta

Aug 31

BWI10:40 amBaltimore/Washington

17h 35m

2 stops

CWL9:15 amCardiff Wales

Sep 9

CWL9:45 amCardiff Wales

16h 45m

2 stops

BWI9:30 pmBaltimore/Washington

$1,177

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sat 8/29

8:40 pm-9:20 pm

1 stop19h 40m

Cardiff Wales

Sat 9/5

7:30 am-7:10 pm

1 stop16h 40m

$794

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 8/31

6:00 am-10:50 pm

3 stops35h 50m

Cardiff Wales

Mon 9/7

11:35 am-12:00 pm

2 stops29h 25m

$850

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 8/19

8:30 pm-10:25 pm

3 stops20h 55m

Cardiff Wales

Tue 8/25

11:15 pm-8:24 pm

3 stops26h 09m

$880

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 8/19

6:00 am-10:15 am

2 stops23h 15m

Cardiff Wales

Tue 8/25

11:15 pm-10:31 pm

3 stops28h 16m

$883

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 9/1

9:05 pm-11:25 pm

1 stop21h 20m

Cardiff Wales

Tue 9/8

9:45 pm-3:30 pm

2 stops22h 45m

$892

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Tue 9/1

5:36 pm-4:45 pm

2 stops18h 09m

Cardiff Wales

Tue 9/8

5:15 pm-7:45 pm

2 stops31h 30m

$1,144

Quickest round-trip

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Mon 8/31

10:40 am-9:15 am

2 stops17h 35m

Cardiff Wales

Wed 9/9

9:45 am-9:30 pm

2 stops16h 45m

$1,177

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Mon 8/31

10:40 am-9:15 am

2 stops17h 35m

Cardiff Wales

Wed 9/9

9:45 am-9:30 pm

2 stops16h 45m

$1,179

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Sun 8/30

6:20 pm-9:15 am

2 stops57h 55m

Cardiff Wales

Sun 9/6

5:15 pm-11:13 pm

2 stops34h 58m

$1,224

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Fri 8/14

12:30 pm-9:15 am

2 stops15h 45m

Cardiff Wales

Tue 8/18

5:15 pm-5:47 pm

2 stops29h 32m

$1,230

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

Prices

Airlines

Other information

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

You could potentially save up to 13% on your flight if you consider stops on a Washington, D.C. to Cardiff flight.

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	14h 30m
Direct flights	None

The fastest flight from Washington, D.C. to Cardiff takes 14h 30m

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

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

How far is Washington, D.C. to Cardiff Wales by plane?
Cardiff Wales is 3537.5 mi away from Washington, D.C.. 14h 30m 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.

Bridgend

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

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Thu 8/20

Thu 8/27

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Airlines

Cabin classes

Other United Kingdom destinations

Other flights from Washington, D.C.

Complete your trip

Feeling lucky

Fly your favorite airline to Cardiff

Aer Lingus

Cheap flights from Washington, D.C. to Cardiff from $255

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 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

KLM flights from Washington, D.C. to Cardiff

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

Delta flights from Washington, D.C. to Cardiff

Our best Delta 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

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

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

Fastest flight time

Direct flights

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

Traveling to a place near Cardiff?

Why use momondo?

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

Complete your trip to Cardiff

Explore popular destinations other users love

According to popular flight searches on momondo this year