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Cheap flights from Washington, D.C. Dulles Intl Airport to Cardiff from £391

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — CWL
25 May — 1 Jun1
1 adult
Sat 25/5
Sat 1/6

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 20 May 2024.

Round-trip from

£102
From Washington, D.C. Dulles Intl to Cardiff Wales
Search Deals

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

The best pricing can be found in the month of October. Prices to Cardiff from Washington, D.C. Dulles Intl Airport average £635. You can even find prices in October for less than £635, as users have found deals to Cardiff from as low as £342. The month of July appears to be one of the more expensive times to travel to Cardiff from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 51%.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Cardiff (IAD - CWL)?

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.

Cheap KLM flights from Dulles Intl to Cardiff

Explore cheap flight options specifically provided by KLM for the route between Dulles Intl and Cardiff. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
Consider these cheap KLM flights we've found departing from Washington, D.C. to Cardiff. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 12/1117:40IAD - CWL
1 stop18h 15mKLM
Thu 12/1206:00CWL - IAD
1 stop14h 45mKLM
Deal found 19/5£584
Tue 12/1113:15IAD - CWL
2 stops15h 30mKLM
Thu 12/1206:00CWL - IAD
1 stop14h 45mKLM
Deal found 19/5£588
Tue 12/1113:15IAD - CWL
2 stops15h 30mKLM
Thu 12/1210:15CWL - IAD
2 stops17h 28mKLM
Deal found 19/5£595
Sun 1/917:25IAD - CWL
1 stop10h 50mKLM
Mon 9/909:45CWL - IAD
1 stop10h 50mKLM
Deal found 19/5£611
Sat 5/1017:25IAD - CWL
1 stop18h 20mKLM
Sat 26/1009:45CWL - IAD
1 stop10h 50mKLM
Deal found 19/5£713
Mon 10/617:25IAD - CWL
1 stop18h 20mKLM
Mon 17/609:45CWL - IAD
1 stop10h 50mKLM
Deal found 19/5£850
Mon 10/619:20IAD - CWL
2 stops16h 25mKLM
Mon 17/609:45CWL - IAD
1 stop10h 50mKLM
Deal found 19/5£854
Wed 12/617:50IAD - CWL
1 stop17h 55mKLM
Sun 16/609:45CWL - IAD
2 stops14h 25mKLM
Deal found 19/5£1,045
Mon 10/619:20IAD - CWL
2 stops16h 25mKLM
Mon 17/609:45CWL - IAD
2 stops14h 25mKLM
Deal found 19/5£1,049

Cheap Delta flights from Dulles Intl to Cardiff

Explore cheap flight options specifically provided by Delta for the route between Dulles Intl and Cardiff. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
To aid your search, here are some of the cheapest Delta flights we've found from Washington, D.C. to Cardiff. Deals frequently update to provide users with more options.
Sun 1/912:33IAD - CWL
2 stops15h 42mDelta
Mon 9/909:45CWL - IAD
1 stop10h 50mDelta
Deal found 19/5£615
Sun 1/912:33IAD - CWL
2 stops15h 42mDelta
Mon 9/909:45CWL - IAD
2 stops17h 58mDelta
Deal found 19/5£623
Sat 5/1012:30IAD - CWL
2 stops15h 45mDelta
Sat 26/1009:45CWL - IAD
2 stops17h 58mDelta
Deal found 19/5£681
Wed 18/917:50IAD - CWL
1 stop10h 25mDelta
Fri 27/909:45CWL - IAD
1 stop10h 50mDelta
Deal found 19/5£692
Wed 18/912:30IAD - CWL
2 stops15h 45mDelta
Fri 27/909:45CWL - IAD
1 stop10h 50mDelta
Deal found 19/5£742
Thu 29/817:25IAD - CWL
1 stop10h 50mDelta
Tue 3/909:45CWL - IAD
2 stops18h 01mDelta
Deal found 19/5£3,213
Fri 16/812:33IAD - CWL
2 stops15h 42mDelta
Fri 23/809:45CWL - IAD
1 stop10h 50mDelta
Deal found 18/5£3,287
Fri 16/812:33IAD - CWL
2 stops15h 42mDelta
Fri 23/809:45CWL - IAD
2 stops17h 07mDelta
Deal found 18/5£3,295
Fri 16/817:25IAD - CWL
1 stop10h 50mDelta
Fri 23/809:45CWL - IAD
1 stop10h 50mDelta
Deal found 18/5£4,956

Cheap Dulles Intl to Cardiff flights in May & June 2024

Find cheap flight options from Dulles Intl to Cardiff specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 835,519 searches. Prices were last updated on 20 May 2024.
These are some of the most attractive deals on flights from Washington, D.C. to Cardiff in 2024. Check back soon for alternative fares.
Tue 21/517:50IAD - CWL
1 stop17h 55mKLM
Mon 27/509:45CWL - IAD
1 stop10h 50mKLM
Deal found 19/5£779
Mon 10/617:25IAD - CWL
1 stop18h 20mKLM
Mon 17/609:45CWL - IAD
1 stop10h 50mKLM
Deal found 19/5£850
Mon 10/619:20IAD - CWL
2 stops16h 25mKLM
Mon 17/609:45CWL - IAD
1 stop10h 50mKLM
Deal found 19/5£854
Mon 20/521:20IAD - CWL
2 stops14h 25mAir France
Mon 27/509:45CWL - IAD
1 stop10h 50mAir France
Deal found 19/5£919
Tue 21/521:20IAD - CWL
2 stops14h 25mAir France
Mon 27/509:45CWL - IAD
1 stop10h 50mAir France
Deal found 19/5£966
Wed 12/617:50IAD - CWL
1 stop17h 55mKLM
Sun 16/609:45CWL - IAD
2 stops14h 25mKLM
Deal found 19/5£1,045
Mon 10/619:20IAD - CWL
2 stops16h 25mKLM
Mon 17/609:45CWL - IAD
2 stops14h 25mKLM
Deal found 19/5£1,049
Tue 18/617:50IAD - CWL
1 stop17h 55mKLM
Tue 25/609:45CWL - IAD
1 stop11h 15mKLM
Deal found 19/5£1,063
Wed 12/608:24IAD - CWL
2 stops30h 21mMultiple Airlines
Sun 16/612:00CWL - IAD
3 stops38h 16mMultiple Airlines
Deal found 19/5£1,082

Dulles Intl to Cardiff 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and Cardiff in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
These are some of the most attractive deals on flights from Washington, D.C. to Cardiff in 2024. Check back soon for alternative fares.
Tue 12/1117:40IAD - CWL
1 stop18h 15mKLM
Thu 12/1206:00CWL - IAD
1 stop14h 45mKLM
Deal found 19/5£584
Tue 12/1113:15IAD - CWL
2 stops15h 30mKLM
Thu 12/1206:00CWL - IAD
1 stop14h 45mKLM
Deal found 19/5£588
Tue 12/1113:15IAD - CWL
2 stops15h 30mKLM
Thu 12/1210:15CWL - IAD
2 stops17h 28mKLM
Deal found 19/5£595
Sun 1/917:25IAD - CWL
1 stop10h 50mKLM
Mon 9/909:45CWL - IAD
1 stop10h 50mKLM
Deal found 19/5£611
Sun 1/912:33IAD - CWL
2 stops15h 42mDelta
Mon 9/909:45CWL - IAD
1 stop10h 50mDelta
Deal found 19/5£615
Sun 1/912:33IAD - CWL
2 stops15h 42mDelta
Mon 9/909:45CWL - IAD
2 stops17h 58mDelta
Deal found 19/5£623
Sat 5/1017:25IAD - CWL
1 stop18h 20mAir France
Sat 26/1009:45CWL - IAD
2 stops17h 58mAir France
Deal found 19/5£634
Sat 5/1012:30IAD - CWL
2 stops15h 45mDelta
Sat 26/1009:45CWL - IAD
2 stops17h 58mDelta
Deal found 19/5£681
Wed 18/917:50IAD - CWL
1 stop10h 25mDelta
Fri 27/909:45CWL - IAD
1 stop10h 50mDelta
Deal found 19/5£692

One-way flights to Cardiff from Dulles Intl

Search for one-way flight options from Dulles Intl to Cardiff. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
If you're seeking multiple options on one-way flights from Washington, D.C. to Cardiff, be sure to check out these deals, which are updated often. For those needing a return trip from Washington, D.C., there is a search form available above.
Tue 6/812:33IAD - CWL
2 stops15h 42mDelta
Deal found 19/5£391
Tue 6/820:30IAD - CWL
3 stops34h 00mMultiple Airlines
Deal found 19/5£439
Tue 6/817:50IAD - CWL
1 stop10h 25mKLM
Deal found 19/5£473

Find flights from Dulles Intl to Cardiff within your budget

Customise 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 835,519 searches. Data last updated 20 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£584 - £1,082

Route

Depart

Return

Price

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 12/11

1 stop18h 15m

Cardiff Wales

Thu 12/12

1 stop14h 45m

£584

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 12/11

2 stops15h 30m

Cardiff Wales

Thu 12/12

1 stop14h 45m

£588

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 12/11

2 stops15h 30m

Cardiff Wales

Thu 12/12

2 stops17h 28m

£595

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 1/9

1 stop10h 50m

Cardiff Wales

Mon 9/9

1 stop10h 50m

£611

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 1/9

2 stops15h 42m

Cardiff Wales

Mon 9/9

1 stop10h 50m

£615

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 1/9

2 stops15h 42m

Cardiff Wales

Mon 9/9

2 stops17h 58m

£623

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sat 5/10

1 stop18h 20m

Cardiff Wales

Sat 26/10

2 stops17h 58m

£634

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 18/9

2 stops19h 15m

Cardiff Wales

Fri 27/9

2 stops33h 55m

£790

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 12/6

2 stops30h 21m

Cardiff Wales

Sun 16/6

3 stops38h 16m

£1,082

Flights are sorted by cheapest first

Deals found on 19/5

No data available for this route at this time. Please check back soon.

Average price of flights to Cardiff by month

Plan your trip from Dulles Intl to Cardiff by taking into account the cheapest months to travel. The average price of a one-way flight from Dulles Intl to Cardiff is currently £435 while a return flight costs £680. Price data was last updated on 12 May 2024.

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cardiff (average of £129). Flying from Washington, D.C. Dulles Intl Airport to Cardiff in February is currently the most expensive (average of £199). 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.

January

£120

February

£157

March

£134

April

£140

May

£152

June

£139

July

£131

August

£133

September

£116

October

£102

November

£106

December

£154

Temperature and rainfall in Cardiff by month

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

CWL

Temperature

4 - 18 °C

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 20 May 2024.
See what other customers who have flown with KLM, Delta and Air France from Washington, D.C. to Cardiff have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,635 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very Good
10,635 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,558 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.6
Good
1,761 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

British Airways
6.8
Okay
6,824 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

ITA Airways
6.7
Okay
736 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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?

    Located just 9.1 mi from the city center, Cardiff Wales is the airport most travelers will use when flying to Cardiff from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Cardiff Wales (CWL) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

  • Can I find flights from Washington, D.C. Dulles Intl Airport to Cardiff for under £600 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Cardiff for under £600. The cheapest flight booked recently is on KLM for just £584, but on average you can expect to pay £803.

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

    Currently priced at £584, KLM will fly you from Washington, D.C. Dulles Intl Airport to Cardiff and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Air France - these airlines can fly you to your destination from £615 and £634, respectively.

  • What does IAD to CWL mean?

    Great question - IAD to CWL just means Washington, D.C. Dulles Intl Airport to Cardiff Wales Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Dulles Intl to Cardiff that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to Cardiff flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Dulles Intl to Cardiff with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to Cardiff flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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 holiday 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.

  • Can I find deals for flights from Dulles Intl to Cardiff that allow pets onboard?

    Many airlines flying from Dulles Intl to Cardiff offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Dulles Intl to Cardiff?

    Yes, you can often find last-minute deals on Dulles Intl to Cardiff flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Washington, D.C. Dulles Intl Airport to Cardiff flight deals updated?

    The Washington, D.C. Dulles Intl Airport to Cardiff flight deals you see on this page were last updated on 19/5.

See more FAQs

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Search flights from Dulles Intl to Cardiff by cabin class

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Fly with Cheapflights

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How does Cheapflights help users find flights from Dulles Intl to Cardiff?

Cheapflights makes it easy to find Dulles Intl to Cardiff flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Can Cheapflights find flights from Dulles Intl to Cardiff with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dulles Intl to Cardiff flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Dulles Intl to Cardiff become cheaper?

Not ready to book yet? You can track prices for flights from Dulles Intl to Cardiff on Cheapflights with our Price Alert feature and get notified when better prices are available.

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