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 £271 for a one-way ticket and £698 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>

Which airlines provide the cheapest flights from Washington, D.C. to Cardiff?

In the past 3 days, the cheapest return tickets from Washington, D.C. to Cardiff were found on KLM (£849) and Delta (£853).

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

IAD - CWL

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

...and more

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Cheapest return fare

£698

Multiple Airlines

Wed 10/6Wed 17/6

IAD - CWL • 2 stops

Cheapest one-way flight

£271

Multiple Airlines

Sun 26/7

IAD - CWL • 1 stop

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

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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

Wed, 10 Jun - Wed, 17 Jun

08:18 - 10:15

IAD

CWL

20h 57m

2 stops

23:30 - 21:26

CWL

IAD

26h 56m

3 stops

£698Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

08:18 - 10:15

IAD

CWL

20h 57m

2 stops

23:30 - 21:26

CWL

IAD

26h 56m

3 stops

£729Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

09:55 - 10:15

IAD

CWL

19h 20m

1 stop

23:30 - 21:26

CWL

IAD

26h 56m

3 stops

£738Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

09:55 - 10:15

IAD

CWL

19h 20m

1 stop

23:30 - 21:13

CWL

IAD

26h 43m

3 stops

£751Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

08:18 - 10:15

IAD

CWL

20h 57m

2 stops

23:30 - 15:45

CWL

IAD

21h 15m

1 stop

£775Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

08:18 - 10:15

IAD

CWL

20h 57m

2 stops

23:30 - 15:45

CWL

IAD

21h 15m

1 stop

£776Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

09:55 - 10:15

IAD

CWL

19h 20m

1 stop

23:30 - 15:45

CWL

IAD

21h 15m

1 stop

£827Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

09:55 - 10:15

IAD

CWL

19h 20m

1 stop

23:30 - 15:45

CWL

IAD

21h 15m

1 stop

£835Multiple Airlines

Mon, 31 Aug - Wed, 9 Sep

18:10 - 16:45

IAD

CWL

17h 35m

1 stop

17:15 - 15:35

CWL

IAD

27h 20m

1 stop

£849KLM

Mon, 31 Aug - Wed, 9 Sep

18:10 - 16:45

IAD

CWL

17h 35m

1 stop

09:45 - 15:35

CWL

IAD

10h 50m

1 stop

£850KLM

Useful Info

Cheapest flight	£271

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 £271 for a one-way ticket and £698 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.
Which airlines provide the cheapest flights from Washington, D.C. to Cardiff?
In the past 3 days, the cheapest return tickets from Washington, D.C. to Cardiff were found on KLM (£849) and Delta (£853).

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

Airports

Cabin class

Complete your trip

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Information on your arrival and departure airports

Washington, D.C. (IAD)

Cardiff (CWL)

IAD - CWL

£271 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

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 £271 for a one-way ticket and £698 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.

Which airlines provide the cheapest flights from Washington, D.C. to Cardiff?

In the past 3 days, the cheapest return tickets from Washington, D.C. to Cardiff were found on KLM (£849) and Delta (£853).

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.