HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cardiff

$739+ Cheap flights from Dulles Intl (IAD) to Cardiff (CWL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CWL
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
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

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Cardiff (CWL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,014
(Delta)
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

Find flight deals from Dulles Intl to Cardiff

Cheapest flights from Dulles Intl to Cardiff
Explore the most affordable flight options available from Dulles Intl to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/176:00 amIAD - CWL
2 stops29h 55mDelta
Wed 12/2510:20 amCWL - IAD
2 stops17h 42mDelta
Deal found 11/19$1,014
This KLM deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/165:35 pmIAD - CWL
1 stop18h 20mKLM
Tue 12/245:25 pmCWL - IAD
1 stop27h 20mKLM
Deal found 11/19$1,396
This KLM deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/165:35 pmIAD - CWL
1 stop11h 15mMultiple Airlines
Tue 12/2410:20 amCWL - IAD
2 stops19h 18mMultiple Airlines
Deal found 11/19$1,600
This KAYAK deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/166:00 pmIAD - CWL
2 stops12h 30mBritish Airways
Sat 12/2812:00 pmCWL - IAD
2 stops36h 45mBritish Airways
Deal found 11/19$1,744

Find flights from Dulles Intl to Cardiff within your budget

Customize your flight search to find flights from Dulles Intl to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 3/19

6:35 pm-9:50 am

1 stop11h 15m

Cardiff Wales

Sat 3/29

10:20 am-3:35 pm

1 stop33h 15m

$739

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 3/19

6:35 pm-4:55 pm

1 stop18h 20m

Cardiff Wales

Mon 3/31

9:45 am-6:26 pm

2 stops13h 41m

$791

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 3/19

7:50 pm-9:50 am

2 stops34h 00m

Cardiff Wales

Fri 4/4

9:45 am-3:35 pm

1 stop10h 50m

$795

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sat 3/22

10:55 pm-11:30 am

2 stops32h 35m

Cardiff Wales

Tue 4/1

12:00 pm-8:30 pm

2 stops37h 30m

$966

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 3/24

7:00 pm-11:30 am

2 stops12h 30m

Cardiff Wales

Sat 3/29

12:00 pm-3:35 pm

2 stops55h 35m

$1,225

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Cardiff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Cardiff flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Dulles Intl to Cardiff

Get recent, data-driven insights about flights from Dulles Intl to Cardiff including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cardiff (average of $767). Flying from Washington, D.C. Dulles Intl Airport to Cardiff in June is currently the most expensive (average of $1,624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to CWL?

Find hourly flight availability from Dulles Intl to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

When flying from Washington, D.C. Dulles Intl Airport to Cardiff, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Cardiff by month

Plan your trip to Cardiff by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cardiff ranges from 2.0 - 3.5 inches per month. January is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Cardiff when rainfall is around 2.0 in.

Temperature in Cardiff by month

Plan your trip to Cardiff by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated November 21, 2024.
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,758 reviews
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

British Airways
6.7
Okay
6,837 reviews
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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. 1 airline has flights to Cardiff Wales from Washington, D.C. Dulles Intl on a regular basis.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Cardiff round-trip?

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Cardiff is Delta. Our recent data shows that you can find tickets from as low as $1,014 on this airline. Additional options worth looking into are KLM and British Airways, starting at $1,396 and $1,596 round-trip.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cardiff (average of $767). Flying from Washington, D.C. Dulles Intl Airport to Cardiff in June is currently the most expensive (average of $1,624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Dulles Intl to Cardiff

Discover the top airline that operate flights from Dulles Intl to Cardiff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$716Average$820FlexibilityNo cancel feeOn-timeN/A
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.
View all available airlines