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Cheap flights from Cardiff to Washington, D.C. Dulles Intl Airport from £788

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — IAD
23 Jul — 30 Jul1
1 adult
Tue 23/7
Tue 30/7

What is the cheapest day to fly round-trip from Cardiff to Washington, D.C. Dulles Intl Airport?

Users have found that flying from Cardiff to Washington, D.C. Dulles Intl Airport on a Monday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

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

Cheap Delta flights from Cardiff to Dulles Intl

Explore cheap flight options specifically provided by Delta for the route between Cardiff and Dulles Intl. 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 996,417 searches. Data last updated 18 July 2024.
Consider these cheap Delta flights we've found departing from Cardiff to Washington, D.C.. Be sure to come back soon if the deals available don't appeal to you at this time.
Thu 1/809:45CWL - IAD
2 stops42h 21mDelta
Mon 5/819:11IAD - CWL
2 stops33h 04mDelta
Deal found 17/7£1,230
Thu 1/809:45CWL - IAD
2 stops35h 12mDelta
Mon 5/816:52IAD - CWL
2 stops35h 23mDelta
Deal found 17/7£1,234
Thu 1/809:45CWL - IAD
2 stops42h 21mDelta
Mon 5/817:25IAD - CWL
1 stop10h 50mDelta
Deal found 17/7£1,327
Thu 1/809:45CWL - IAD
2 stops42h 21mDelta
Mon 5/817:25IAD - CWL
1 stop10h 50mDelta
Deal found 17/7£1,327

Cheap KLM flights from Cardiff to Dulles Intl

Explore cheap flight options specifically provided by KLM for the route between Cardiff and Dulles Intl. 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 996,417 searches. Data last updated 18 July 2024.
Have a look at some of the cheapest available KLM flights departing from Cardiff and landing in Washington, D.C.. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Fri 30/809:45CWL - IAD
2 stops16h 42mKLM
Thu 24/1013:15IAD - CWL
2 stops15h 00mKLM
Deal found 17/7£837
Fri 30/809:45CWL - IAD
2 stops16h 42mKLM
Thu 24/1017:25IAD - CWL
1 stop18h 20mKLM
Deal found 17/7£853
Thu 1/817:15CWL - IAD
1 stop27h 20mKLM
Mon 5/817:25IAD - CWL
1 stop10h 50mKLM
Deal found 17/7£1,368
Thu 1/817:15CWL - IAD
1 stop27h 20mKLM
Mon 5/817:25IAD - CWL
1 stop10h 50mKLM
Deal found 17/7£1,369

Cheap Cardiff to Dulles Intl flights in July & August 2024

Find cheap flight options from Cardiff to Dulles Intl specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 996,417 searches. Prices were last updated on 18 July 2024.
Scroll through some of the best deals on flights from Cardiff to Washington, D.C. in 2024. Check back in a little while for more flight options.
Mon 29/709:45CWL - IAD
1 stop10h 50mAir France
Mon 2/917:25IAD - CWL
1 stop18h 20mAir France
Deal found 18/7£1,412
Mon 29/717:15CWL - IAD
1 stop27h 45mKLM
Mon 2/921:20IAD - CWL
2 stops14h 25mKLM
Deal found 18/7£1,474
Mon 29/709:45CWL - IAD
2 stops14h 25mKLM
Mon 2/921:20IAD - CWL
2 stops14h 25mKLM
Deal found 18/7£1,532
Mon 29/708:30CWL - IAD
3 stops35h 50mMultiple Airlines
Mon 2/916:00IAD - CWL
2 stops22h 45mMultiple Airlines
Deal found 18/7£1,775
Mon 29/708:30CWL - IAD
3 stops35h 50mMultiple Airlines
Mon 2/920:30IAD - CWL
3 stops34h 00mMultiple Airlines
Deal found 18/7£1,833

Cardiff to Dulles Intl 2024 flight deals

Discover exclusive flight deals for travel between Cardiff and Dulles Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 996,417 searches. Data last updated 18 July 2024.
Scroll through some of the best deals on flights from Cardiff to Washington, D.C. in 2024. Check back in a little while for more flight options.
Mon 29/709:45CWL - IAD
1 stop10h 50mAir France
Mon 2/917:25IAD - CWL
1 stop18h 20mAir France
Deal found 18/7£1,412
Mon 29/717:15CWL - IAD
1 stop27h 45mKLM
Mon 2/921:20IAD - CWL
2 stops14h 25mKLM
Deal found 18/7£1,474
Mon 29/709:45CWL - IAD
2 stops14h 25mKLM
Mon 2/921:20IAD - CWL
2 stops14h 25mKLM
Deal found 18/7£1,532
Mon 29/708:30CWL - IAD
3 stops35h 50mMultiple Airlines
Mon 2/916:00IAD - CWL
2 stops22h 45mMultiple Airlines
Deal found 18/7£1,775
Mon 29/708:30CWL - IAD
3 stops35h 50mMultiple Airlines
Mon 2/920:30IAD - CWL
3 stops34h 00mMultiple Airlines
Deal found 18/7£1,833

Find flights from Cardiff to Dulles Intl within your budget

Customise your flight search to find flights from Cardiff to Dulles Intl 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 996,417 searches. Data last updated 18 July 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£788 - £1,368

Route

Depart

Return

Price

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Fri 30/8

1 stop10h 50m

Washington, D.C. Dulles Intl

Thu 24/10

1 stop18h 20m

£788

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Fri 30/8

3 stops30h 35m

Washington, D.C. Dulles Intl

Thu 24/10

3 stops31h 45m

£821

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Fri 30/8

2 stops16h 42m

Washington, D.C. Dulles Intl

Thu 24/10

2 stops15h 00m

£837

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Fri 30/8

2 stops16h 42m

Washington, D.C. Dulles Intl

Thu 24/10

1 stop18h 20m

£853

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Fri 30/8

3 stops30h 35m

Washington, D.C. Dulles Intl

Thu 24/10

2 stops17h 35m

£898

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Thu 1/8

2 stops42h 21m

Washington, D.C. Dulles Intl

Mon 5/8

2 stops33h 04m

£1,230

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Thu 1/8

2 stops35h 12m

Washington, D.C. Dulles Intl

Mon 5/8

2 stops35h 23m

£1,234

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Thu 1/8

2 stops42h 21m

Washington, D.C. Dulles Intl

Mon 5/8

1 stop10h 50m

£1,327

Cardiff WalesWashington, D.C. Dulles Intl

CWL - IAD

CWLIAD

Cardiff Wales

Thu 1/8

1 stop27h 20m

Washington, D.C. Dulles Intl

Mon 5/8

1 stop10h 50m

£1,368

Flights are sorted by cheapest first

Deals found on 17/7

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

Use this chart to determine the cheapest time to fly return from Cardiff to Dulles Intl. Price data was last updated on 14 July 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their Cardiff to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Cardiff to Dulles Intl

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

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 18 July 2024.
Peruse reviews from past customers who have flown with Delta and KLM from Cardiff to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
9,735 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

8.0
Very Good
9,735 reviews
8.0
Very Good
9,735 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.9
Good
1,427 reviews
8.0
Very Good
9,735 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.5
Good
1,635 reviews
8.0
Very Good
9,735 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Dulles Intl. 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 from for flights from Cardiff to Washington, D.C. Dulles Intl?

    For a flight from Cardiff to Washington, D.C. Dulles Intl, you will be flying from 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 outbound flights to Washington, D.C. Dulles Intl per day. 0 airlines have flights to Washington, D.C. Dulles Intl from Cardiff Wales on a regular basis.

  • Can I find flights from Cardiff to Washington, D.C. Dulles Intl Airport for under £800 on Cheapflights?

    Yes, there are multiple flights from Cardiff to Washington, D.C. Dulles Intl Airport for under £800. The cheapest flight booked recently is on Air France for just £788, but on average you can expect to pay £1,095.

  • What does CWL to IAD mean?

    CWL and IAD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. CWL to IAD refers to a flight route from Cardiff Wales Airport to Washington, D.C. Dulles Intl Airport.

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

    The amount of baggage you can bring on your Cardiff to Dulles Intl 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 Cardiff to Dulles Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Cardiff to Dulles Intl 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 Cardiff to Dulles Intl that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Dulles Intl 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 Cardiff to Dulles Intl that allow pets onboard?

    Many airlines flying from Cardiff to Dulles Intl 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 Cardiff to Dulles Intl?

    Yes, you can often find last-minute deals on Cardiff to Dulles Intl 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 Cardiff to Washington, D.C. Dulles Intl Airport flight deals updated?

    The Cardiff to Washington, D.C. Dulles Intl Airport flight deals you see on this page were last updated on 18/7.

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

    Currently, January is the cheapest month in which you can book a flight from Cardiff to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Cardiff to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £897). 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

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

Need flexible booking options for your flight to Dulles Intl from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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