HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cardiff

$777+ Cheap flights from Dulles Intl (IAD) to Cardiff (CWL)

IAD — CWL
Oct 14 — Oct 211
Wed 10/14
Wed 10/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Cardiff with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Cardiff

Cheapest flights from Dulles Intl to Cardiff

Sat 10/246:15 pm -
1 stop15h 40m
Sat 10/3111:50 pm -
1 stop20h 55m
Deal found 9/9$777
Tue 10/134:00 pm -
2 stops26h 25m
Tue 10/209:45 pm -
2 stops26h 15m
Deal found 9/13$840
Thu 10/299:50 pm -
1 stop13h 50m
Thu 11/51:25 pm -
2 stops31h 55m
Deal found 9/13$864
Mon 10/126:10 pm -
1 stop17h 35m
Wed 10/215:15 pm -
1 stop27h 20m
Deal found 9/10$1,003
Tue 10/273:03 pm -
2 stops14h 47m
Tue 11/35:30 pm -
1 stop27h 25m
Deal found 9/12$1,007
Mon 10/126:10 pm -
1 stop17h 35m
Wed 10/219:45 am -
2 stops18h 31m
Deal found 9/10$1,012

Find flight deals from Dulles Intl to Cardiff

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$777
(Mytrip)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Cardiff Wales flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Cardiff Wales flights.
Search Deals
From Washington, D.C. Dulles Intl to Cardiff Wales
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Sat 10/24

9:55 am-2:55 pm

2 stops24h 00m

Cardiff Wales

Sat 10/31

11:50 pm-4:45 pm

1 stop20h 55m

$951

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Thu 10/29

6:25 pm-9:50 am

3 stops35h 25m

Cardiff Wales

Thu 11/5

10:20 am-8:30 pm

3 stops39h 10m

$983

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Tue 10/27

6:45 pm-5:00 pm

1 stop18h 15m

Cardiff Wales

Tue 11/3

5:30 pm-3:55 pm

1 stop27h 25m

$1,003

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Tue 10/27

3:03 pm-9:50 am

2 stops14h 47m

Cardiff Wales

Tue 11/3

5:30 pm-3:55 pm

1 stop27h 25m

$1,007
Quickest round-trip

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Mon 10/12

7:45 pm-4:45 pm

2 stops16h 00m

Cardiff Wales

Wed 10/21

9:45 am-11:16 pm

2 stops18h 31m

$1,017

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Mon 2/1

7:00 am-9:50 am

2 stops21h 50m

Cardiff Wales

Wed 2/10

10:20 am-9:11 am

2 stops27h 51m

$1,026

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Thu 10/29

6:45 pm-9:50 am

1 stop11h 05m

Cardiff Wales

Thu 11/5

5:30 pm-3:55 pm

1 stop27h 25m

$1,030

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Tue 1/5

11:05 am-9:50 am

2 stops17h 45m

Cardiff Wales

Tue 1/12

10:20 am-11:02 pm

2 stops17h 42m

$1,034

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Thu 10/15

5:30 pm-4:45 pm

1 stop18h 15m

Cardiff Wales

Mon 10/19

5:15 pm-3:35 pm

1 stop27h 20m

$1,053

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Thu 12/10

7:39 pm-5:00 pm

2 stops16h 21m

Cardiff Wales

Tue 12/15

5:30 pm-3:55 pm

1 stop27h 25m

$1,057

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Sorted by cheapest first

Compare providers for flights from Dulles Intl to Cardiff

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Cardiff in September.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Cardiff flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Washington, D.C. Dulles Intl Airport-Cardiff flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Cardiff flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Cardiff flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Cardiff flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Dulles Intl with our price prediction graph.
Estimated round-trip price

Related info for your journey

  • What airport do you fly into for flights to Cardiff from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Cardiff, you will be flying into Cardiff Wales. Cardiff Wales (CWL) is just 9.1 mi from the center of the city. Cardiff Wales is the only Cardiff airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to Cardiff Wales from Washington, D.C. Dulles Intl on a regular basis.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Cardiff?

    For as low as $1,017, Virgin Atlantic can have you in Cardiff from Washington, D.C. Dulles Intl Airport in 16h. The distance from Washington, D.C. Dulles Intl Airport to Cardiff is about 3548 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Dulles Intl to Cardiff that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Cardiff.

  • Can I find deals for business class flights from Dulles Intl to Cardiff?

    Yes. Cheapflights offers flight deals from Dulles Intl to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Bridgend

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Cardiff

Dulles Intl to Manchester flights
Baltimore to Manchester flights
Reagan-National to Manchester flights
Baltimore to Bristol flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights