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 11h 52m and 14h 40m, 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 many operators does momondo search for flights from Washington, D.C. to Cardiff Wales Airport?

As of July 2025, there is 1 operator available to choose from for flights from Washington, D.C. to Cardiff Wales Airport.

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.

$646 Cheap Flights from Washington, D.C. to Cardiff in 2025

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

Round-trip

One-way

Cheap round-trip flights

5:20 pm - 10:35 amIAD-CWL

12h 15m1 stop

9:00 am - 3:50 pmCWL-IAD

11h 50m1 stop

$646

Find Deal

sáb., sep. 13 - sáb., sep. 20

5:25 pm - 9:15 amIAD-CWL

10h 50m1 stop

9:50 am - 3:35 pmCWL-IAD

10h 45m1 stop

$797Virgin Atlantic

Find Deal

mar., sep. 9 - mar., sep. 16

5:25 pm - 9:15 amIAD-CWL

10h 50m1 stop

5:15 pm - 3:35 pmCWL-IAD

27h 20m1 stop

$824KLM

Find Deal

lun., oct. 13 - mié., oct. 22

5:20 pm - 7:30 amIAD-CWL

9h 10m1 stop

12:25 pm - 6:55 pmCWL-IAD

11h 30m1 stop

$825

Find Deal

vie., ago. 29 - vie., sep. 5

5:25 pm - 4:50 pmIAD-CWL

18h 25m1 stop

9:50 am - 3:35 pmCWL-IAD

10h 45m1 stop

$826KLM

Find Deal

sáb., ago. 23 - dom., ago. 31

12:30 pm - 9:15 amDCA-CWL

15h 45m2 stops

9:50 am - 11:41 pmCWL-DCA

18h 51m2 stops

$828KLM

Find Deal

dom., sep. 14 - dom., sep. 21

12:27 pm - 9:15 amIAD-CWL

15h 48m2 stops

5:15 pm - 3:35 pmCWL-IAD

27h 20m1 stop

$829KLM

Find Deal

lun., oct. 13 - mié., oct. 22

5:25 pm - 4:50 pmIAD-CWL

18h 25m1 stop

9:50 am - 11:26 pmCWL-IAD

18h 36m2 stops

$836Delta

Find Deal

sáb., ago. 23 - dom., ago. 31

12:08 pm - 9:15 amIAD-CWL

16h 07m2 stops

9:45 am - 7:37 pmCWL-IAD

14h 52m2 stops

$840Delta

Find Deal

sáb., sep. 13 - sáb., sep. 20

9:20 pm - 4:45 pmIAD-CWL

14h 25m2 stops

9:50 am - 7:15 pmCWL-IAD

14h 25m2 stops

$1,403Air France

Find Deal

lun., ago. 18 - vie., ago. 22

Virgin Atlantic flights from Washington, D.C. to Cardiff

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

Virgin Atlantic

Sep 9

IAD5:25 pmWashington, D.C. Dulles Intl

10h 50m

1 stop

CWL9:15 amCardiff Wales

Sep 16

CWL9:50 amCardiff Wales

10h 45m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$797

Find similar

Virgin Atlantic

Nov 12

IAD6:10 amWashington, D.C. Dulles Intl

22h 40m

2 stops

CWL9:50 amCardiff Wales

Nov 16

CWL5:30 pmCardiff Wales

27h 35m

1 stop

IAD4:05 pmWashington, D.C. Dulles Intl

$832

Find similar

Virgin Atlantic

Dec 3

BWI4:39 pmBaltimore/Washington

19h 16m

2 stops

CWL4:55 pmCardiff Wales

Dec 7

CWL5:30 pmCardiff Wales

35h 42m

2 stops

BWI12:12 amBaltimore/Washington

$840

Find similar

Delta flights from Washington, D.C. to Cardiff

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

Delta

Aug 23

IAD5:25 pmWashington, D.C. Dulles Intl

18h 25m

1 stop

CWL4:50 pmCardiff Wales

Aug 31

CWL9:50 amCardiff Wales

18h 36m

2 stops

IAD11:26 pmWashington, D.C. Dulles Intl

$836

Find similar

Delta

Sep 13

IAD12:08 pmWashington, D.C. Dulles Intl

16h 07m

2 stops

CWL9:15 amCardiff Wales

Sep 20

CWL9:45 amCardiff Wales

14h 52m

2 stops

IAD7:37 pmWashington, D.C. Dulles Intl

$840

Find similar

Delta

Sep 9

BWI11:35 amBaltimore/Washington

16h 40m

2 stops

CWL9:15 amCardiff Wales

Sep 16

CWL9:50 amCardiff Wales

15h 44m

2 stops

BWI8:34 pmBaltimore/Washington

$841

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

sáb. 9/13

5:20 pm-10:35 am

1 stop12h 15m

Cardiff Wales

sáb. 9/20

9:00 am-3:50 pm

1 stop11h 50m

$646

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

mar. 9/9

5:25 pm-9:15 am

1 stop10h 50m

Cardiff Wales

mar. 9/16

9:50 am-3:35 pm

1 stop10h 45m

$797

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

lun. 10/13

5:25 pm-9:15 am

1 stop10h 50m

Cardiff Wales

mié. 10/22

5:15 pm-3:35 pm

1 stop27h 20m

$824

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

vie. 8/29

5:20 pm-7:30 am

1 stop9h 10m

Cardiff Wales

vie. 9/5

12:25 pm-6:55 pm

1 stop11h 30m

$825

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

sáb. 8/23

5:25 pm-4:50 pm

1 stop18h 25m

Cardiff Wales

dom. 8/31

9:50 am-3:35 pm

1 stop10h 45m

$826

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

dom. 9/14

12:30 pm-9:15 am

2 stops15h 45m

Cardiff Wales

dom. 9/21

9:50 am-11:41 pm

2 stops18h 51m

$828

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

lun. 10/13

12:27 pm-9:15 am

2 stops15h 48m

Cardiff Wales

mié. 10/22

5:15 pm-3:35 pm

1 stop27h 20m

$829

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

sáb. 8/23

5:25 pm-4:50 pm

1 stop18h 25m

Cardiff Wales

dom. 8/31

9:50 am-11:26 pm

2 stops18h 36m

$836

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

sáb. 9/13

12:08 pm-9:15 am

2 stops16h 07m

Cardiff Wales

sáb. 9/20

9:45 am-7:37 pm

2 stops14h 52m

$840

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

lun. 8/18

9:20 pm-4:45 pm

2 stops14h 25m

Cardiff Wales

vie. 8/22

9:50 am-7:15 pm

2 stops14h 25m

$1,403

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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

Other information

What is the cheapest day to depart on your flight to Cardiff?

The cheapest day to depart on your flight to Cardiff is on a Tuesday when prices can be found for as low as $766. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,282. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cardiff.

What is the cheapest time of day to depart on your flight to Cardiff?

Flying to Cardiff from Washington, D.C. in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $799 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $809 on average. Flights to Cardiff from Washington, D.C. at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Best Price Found	$646
Fastest flight time	9h 10m
Direct flights	None
Airports in Cardiff	1 airport

The best flight deal from Washington, D.C. to Cardiff found on momondo in the last 72 hours is $646

The fastest flight from Washington, D.C. to Cardiff takes 9h 10m

There are no direct flights from Washington, D.C. to Cardiff. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Cardiff Wales Airport, Baltimore/Washington Airport - Cardiff Wales Airport and Washington, D.C. Dulles Intl Airport - Cardiff Wales Airport.

There is 1 airport near Cardiff: Cardiff Wales (CWL)

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.. 9h 10m 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 many operators does momondo search for flights from Washington, D.C. to Cardiff Wales Airport?
As of July 2025, there is 1 operator available to choose from for flights from Washington, D.C. to Cardiff Wales Airport.
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).

Best airlines flying from Washington, D.C. to Cardiff

Compare and see reviews for airlines that fly from Washington, D.C. to Cardiff with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $765	Free Cancellation	Rating 7.8 1,383 reviews		Search KLM flights

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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Cheap flights from Washington, D.C. to Cardiff from $646

This is the cheapest round-trip 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 9/13. 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

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Filter for what you want

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

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Virgin Atlantic flights from Washington, D.C. to Cardiff

Our best Virgin Atlantic 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

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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

What is the cheapest day to depart on your flight to Cardiff?

What is the cheapest time of day to depart on your flight to Cardiff?

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 11h 52m and 14h 40m, respectively.

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

Best Price Found

Fastest flight time

Direct flights

Airports in Cardiff

How far is Washington, D.C. to Cardiff Wales by plane?

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

How many operators does momondo search for flights from Washington, D.C. to Cardiff Wales Airport?

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

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

What is the most popular airline from Washington, D.C. to Cardiff?

Best airlines flying from Washington, D.C. to Cardiff

Compare and see reviews for airlines that fly from Washington, D.C. to Cardiff with momondo

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