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 £230 for a one-way ticket and £571 for a return. 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>

Cheap Flights from Washington, D.C. to Cardiff | KAYAK

IAD - CWL

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Cheapest return fare

£571

Multiple Airlines

Sun 23/8Wed 9/9

IAD - CWL • 1 stop

Cheapest one-way flight

£259

Multiple Airlines

Tue 21/7

IAD - CWL • 3 stops

Direct flights

Not available

There are currently no direct flights between Washington, D.C. and Cardiff. You’ll need at least 1 connection.

Insights

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)

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

Round-trip

One-way

Last minute

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

Sun, 23 Aug - Wed, 9 Sep

20:55 - 21:45

IAD

CWL

19h 50m

1 stop

23:50 - 15:10

CWL

IAD

44h 20m

2 stops

£571Multiple Airlines

Wed, 19 Aug - Wed, 9 Sep

17:15 - 22:25

IAD

CWL

24h 10m

1 stop

23:50 - 10:45

CWL

IAD

39h 55m

2 stops

£578Multiple Airlines

Sun, 23 Aug - Thu, 10 Sep

20:55 - 21:45

IAD

CWL

19h 50m

1 stop

22:50 - 10:45

CWL

IAD

40h 55m

2 stops

£581Multiple Airlines

Wed, 19 Aug - Tue, 15 Sep

17:15 - 22:25

IAD

CWL

24h 10m

1 stop

16:15 - 19:25

CWL

IAD

32h 10m

2 stops

£603Multiple Airlines

Sun, 23 Aug - Tue, 15 Sep

20:55 - 21:45

IAD

CWL

19h 50m

1 stop

16:15 - 19:25

CWL

IAD

32h 10m

2 stops

£609Multiple Airlines

Wed, 19 Aug - Mon, 14 Sep

17:15 - 22:25

IAD

CWL

24h 10m

1 stop

13:35 - 19:35

CWL

IAD

35h 00m

2 stops

£610Multiple Airlines

Wed, 19 Aug - Sun, 13 Sep

17:15 - 22:25

IAD

CWL

24h 10m

1 stop

14:45 - 19:25

CWL

IAD

33h 40m

2 stops

£613Multiple Airlines

Sun, 23 Aug - Mon, 14 Sep

20:55 - 21:45

IAD

CWL

19h 50m

1 stop

13:35 - 19:35

CWL

IAD

35h 00m

2 stops

£616Multiple Airlines

Thu, 20 Aug - Wed, 9 Sep

20:40 - 22:20

IAD

CWL

20h 40m

1 stop

23:50 - 10:45

CWL

IAD

39h 55m

2 stops

£616Multiple Airlines

Wed, 19 Aug - Thu, 10 Sep

15:50 - 10:15

IAD

CWL

13h 25m

1 stop

11:35 - 15:10

CWL

IAD

32h 35m

1 stop

£619Multiple Airlines

Useful Info

Cheapest flight	£258

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 £230 for a one-way ticket and £571 for a return.
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

£258 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

Recent last minute 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

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.