What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Cardiff?

In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Cardiff was £567 for a return ticket. Visit our flight page for the latest deals!>/a>

Which airports will I be using when flying from Washington, D.C. to Cardiff?

When flying out of Washington, D.C. you will be using Washington, D.C. Dulles Intl. You will be landing at Cardiff, also known as Cardiff Wales. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Washington, D.C. to Cardiff?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Washington, D.C. to Cardiff?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Cardiff. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Cardiff?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington, D.C. to Cardiff?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Cardiff with an airline and back to Washington, D.C. with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Cardiff?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cardiff from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

£567 CHEAP FLIGHTS from Washington, D.C. to Cardiff (IAD - CWL)

IAD - CWL

KAYAK searches hundreds of travel sites at once for deals on flights to Cardiff

...and more

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41.299.237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest return fare

£567

KLM

Tue 27/1Tue 3/2

IAD - CWL • 1 stop

Cheapest one-way flight

Multiple Airlines

Sun 14/12

IAD - CWL • multi-stop

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to Cardiff!

Flight Deals

Cheap Flights from Washington, D.C. to Cardiff (IAD-CWL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Washington, D.C. to Cardiff that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent return flight deals from Washington, D.C. to Cardiff

Tue, 27 Jan - Tue, 3 Feb

18:05 - 09:50

IAD

CWL

10h 45m1 stop

10:20 - 23:06

CWL

IAD

17h 46m2 stops

£567KLM

Wed, 28 Jan - Wed, 4 Feb

19:30 - 16:55

IAD

CWL

16h 25m2 stops

17:25 - 16:05

CWL

IAD

27h 40m1 stop

£582KLM

Sun, 22 Mar - Sun, 29 Mar

19:05 - 16:45

IAD

CWL

17h 40m1 stop

17:15 - 15:35

CWL

IAD

27h 20m1 stop

£583KLM

Mon, 12 Jan - Sun, 25 Jan

12:23 - 09:50

IAD

CWL

16h 27m2 stops

17:30 - 16:05

CWL

IAD

27h 35m1 stop

£585KLM

Sun, 22 Mar - Sun, 29 Mar

12:52 - 09:50

IAD

CWL

16h 58m2 stops

09:50 - 15:35

CWL

IAD

10h 45m1 stop

£586Delta

Tue, 27 Jan - Tue, 3 Feb

12:40 - 09:50

IAD

CWL

16h 10m2 stops

10:20 - 19:09

CWL

IAD

13h 49m2 stops

£587KLM

Tue, 27 Jan - Tue, 3 Feb

19:40 - 15:30

IAD

CWL

14h 50m2 stops

17:25 - 18:30

CWL

IAD

30h 05m3 stops

£588Multiple Airlines

Mon, 12 Jan - Sun, 25 Jan

12:23 - 09:50

IAD

CWL

16h 27m2 stops

10:15 - 23:06

CWL

IAD

17h 51m2 stops

£643KLM

Tue, 27 Jan - Tue, 3 Feb

19:40 - 09:50

IAD

CWL

33h 10m3 stops

17:25 - 18:30

CWL

IAD

30h 05m3 stops

£701Multiple Airlines

Sun, 22 Mar - Sun, 29 Mar

12:52 - 09:50

IAD

CWL

16h 58m2 stops

09:50 - 20:54

CWL

IAD

16h 04m2 stops

£718Delta

Useful Info

Cheapest flight	£567

Flight from Washington, D.C. to Cardiff

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Cardiff based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Cardiff?
In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Cardiff was £567 for a return ticket.
Which airports will I be using when flying from Washington, D.C. to Cardiff?
When flying out of Washington, D.C. you will be using Washington, D.C. Dulles Intl. You will be landing at Cardiff, also known as Cardiff Wales.
Which aircraft models fly most regularly from Washington, D.C. to Cardiff?
We unfortunately don’t have that data for this specific route.
How does KAYAK find such low prices on flights from Washington, D.C. to Cardiff?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Cardiff.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Cardiff?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington, D.C. to Cardiff?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Cardiff with an airline and back to Washington, D.C. with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Cardiff?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cardiff from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Washington, D.C. to Cardiff

Airports

Cabin class

Complete your trip

Direct flights

Flights to other cities

Origins

Other airports

Information on your arrival and departure airports

Washington, D.C. (IAD)

Cardiff (CWL)

IAD - CWL

£567 Find Cheap Flights from Washington, D.C. to Cardiff

KAYAK searches hundreds of travel sites at once for deals on flights to Cardiff

Everything you should know

Cheap Flights from Washington, D.C. to Cardiff (IAD-CWL)

Recent return flight deals from Washington, D.C. to Cardiff

Recent one-way flight deals from Washington, D.C. to Cardiff

Good to know - Cheap tickets from Washington, D.C. to Cardiff

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

FAQs for booking Washington, D.C. to Cardiff flights

What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Cardiff?

In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Cardiff was £567 for a return ticket.

Which airports will I be using when flying from Washington, D.C. to Cardiff?

When flying out of Washington, D.C. you will be using Washington, D.C. Dulles Intl. You will be landing at Cardiff, also known as Cardiff Wales.

Which aircraft models fly most regularly from Washington, D.C. to Cardiff?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Washington, D.C. to Cardiff?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Cardiff.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Cardiff?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington, D.C. to Cardiff?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Cardiff with an airline and back to Washington, D.C. with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Cardiff?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cardiff from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Washington, D.C. to Cardiff

Information on your arrival and departure airports

Cabin class types available on flights to Cardiff

Complete your trip to Cardiff with a hotel stay or car hire

Find direct flights to and from Washington, D.C. and Cardiff

Flights to other popular destinations

Flights from domestic origins to Cardiff

Choose which airport to fly into in Washington, D.C.