Cheap flights from Washington, D.C. (WAS) to Cardiff (CWL) from $739

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 9/20. 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.
WAS — CWL
May 16 — May 231

Cheap flight deals from Washington, D.C. to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 May 11, 2024.

Popular in

July

Cheapest in

October

Average price

$928

Round-trip from

$708
High demand for flights, 34% potential price rise
Best time to find cheap flights, 32% potential price drop
Average for round-trip flights in May 2024
From Washington, D.C. (WAS) to Cardiff Wales

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

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Cardiff. Check prices with Cheapflights to find a great deal for your trip.

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

October can be a great time to fly to Cardiff from Washington, D.C. with a flight ticket averaging about $806. Cheapflights users have found deals in the month of October for as cheap as $434. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Washington, D.C. to Cardiff (WAS - CWL)?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Cardiff at noon. If you’re flexible enough to do this you can expect to save up to 45% on your trip compared to booking a flight in the morning.

Cheap Air France flights from Washington, D.C. to Cardiff

Explore cheap flight options specifically provided by Air France for the route between Washington, D.C. 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 2,684,066 searches. Data last updated May 11, 2024.
Take a peek at the cheapest Air France flights we've detected traveling from Washington, D.C. to Cardiff. Make sure to double check the flight details before booking.
Wed 5/229:20 pmIAD - CWL
2 stops38h 25mAir France
Wed 5/295:15 pmCWL - IAD
2 stops35h 40mAir France
Deal found 5/10$1,569
Sun 6/165:25 pmIAD - CWL
1 stop18h 20mAir France
Tue 6/189:45 amCWL - IAD
1 stop11h 15mAir France
Deal found 5/9$1,658
Mon 6/175:23 pmIAD - CWL
2 stops42h 22mAir France
Thu 6/209:45 amCWL - IAD
1 stop10h 50mAir France
Deal found 5/9$1,667
Mon 6/175:06 pmBWI - CWL
2 stops42h 39mAir France
Thu 6/209:45 amCWL - BWI
2 stops18h 37mAir France
Deal found 5/9$1,669
Mon 6/175:00 pmDCA - CWL
2 stops42h 45mAir France
Thu 6/209:45 amCWL - DCA
2 stops16h 47mAir France
Deal found 5/9$1,670
Sun 6/165:23 pmIAD - CWL
2 stops42h 22mAir France
Wed 6/199:45 amCWL - IAD
2 stops19h 14mAir France
Deal found 5/10$1,671
Sun 6/165:25 pmIAD - CWL
1 stop18h 20mAir France
Wed 6/195:15 pmCWL - IAD
1 stop27h 20mAir France
Deal found 5/10$1,704
Sun 6/169:20 pmIAD - CWL
2 stops14h 25mAir France
Tue 6/189:45 amCWL - IAD
1 stop11h 15mAir France
Deal found 5/9$1,828
Sat 6/159:20 pmIAD - CWL
2 stops14h 25mAir France
Mon 6/179:45 amCWL - IAD
1 stop10h 50mAir France
Deal found 5/9$1,878

Cheap KLM flights from Washington, D.C. to Cardiff

Explore cheap flight options specifically provided by KLM for the route between Washington, D.C. 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 2,684,066 searches. Data last updated May 11, 2024.
To aid your search, here are some of the cheapest KLM flights we've found from Washington, D.C. to Cardiff. Deals frequently update to provide users with more options.
Tue 8/61:55 pmDCA - CWL
2 stops14h 20mKLM
Wed 8/149:45 amCWL - DCA
2 stops14h 30mKLM
Deal found 5/9$1,113
Wed 7/245:50 pmIAD - CWL
1 stop10h 25mKLM
Sun 8/119:45 amCWL - IAD
1 stop10h 50mKLM
Deal found 5/8$1,199
Sat 6/812:01 pmDCA - CWL
2 stops16h 14mKLM
Sat 6/155:15 pmCWL - DCA
2 stops28h 20mKLM
Deal found 5/9$1,208
Sat 6/81:08 pmIAD - CWL
2 stops15h 07mKLM
Sat 6/159:45 amCWL - IAD
1 stop10h 50mKLM
Deal found 5/9$1,213
Wed 5/225:50 pmIAD - CWL
1 stop17h 55mKLM
Wed 5/299:45 amCWL - IAD
1 stop11h 15mKLM
Deal found 5/10$1,276
Fri 6/145:25 pmIAD - CWL
1 stop10h 50mKLM
Mon 6/179:45 amCWL - IAD
1 stop10h 50mKLM
Deal found 5/9$1,283
Wed 5/225:50 pmIAD - CWL
1 stop17h 55mKLM
Wed 5/299:45 amCWL - IAD
2 stops15h 48mKLM
Deal found 5/10$1,286
Sat 6/81:08 pmIAD - CWL
2 stops15h 07mKLM
Sat 6/159:45 amCWL - IAD
2 stops18h 53mKLM
Deal found 5/9$1,346
Fri 6/143:35 pmBWI - CWL
2 stops12h 40mKLM
Tue 6/189:45 amCWL - BWI
2 stops14h 56mKLM
Deal found 5/9$1,487

Cheap Washington, D.C. to Cardiff flights in May & June 2024

Find cheap flight options from Washington, D.C. 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 2,684,066 searches. Prices were last updated on May 11, 2024.
Listed are some of the best fares we've found on flights departing from Washington, D.C. to Cardiff in 2024. Check back in a little while for more flight options.
Wed 5/225:50 pmIAD - CWL
1 stop17h 55mKLM
Wed 5/299:45 amCWL - IAD
1 stop11h 15mKLM
Deal found 5/10$1,276
Wed 5/225:50 pmIAD - CWL
1 stop17h 55mKLM
Wed 5/299:45 amCWL - IAD
2 stops15h 48mKLM
Deal found 5/10$1,286
Wed 5/229:20 pmIAD - CWL
2 stops38h 25mAir France
Wed 5/295:15 pmCWL - IAD
2 stops35h 40mAir France
Deal found 5/10$1,569
Sun 6/165:25 pmIAD - CWL
1 stop18h 20mKLM
Tue 6/189:45 amCWL - IAD
2 stops18h 53mKLM
Deal found 5/10$1,611
Sun 5/265:25 pmIAD - CWL
1 stop18h 20mKLM
Fri 5/319:45 amCWL - IAD
1 stop10h 50mKLM
Deal found 5/10$1,633
Sun 5/261:57 pmDCA - CWL
2 stops14h 18mKLM
Fri 5/319:45 amCWL - DCA
2 stops16h 13mKLM
Deal found 5/10$1,647
Sun 6/165:25 pmIAD - CWL
1 stop18h 20mKLM
Thu 6/209:45 amCWL - IAD
1 stop10h 50mKLM
Deal found 5/10$1,658
Sun 6/161:25 pmIAD - CWL
2 stops14h 50mKLM
Thu 6/209:45 amCWL - IAD
1 stop10h 50mKLM
Deal found 5/10$1,662
Sun 6/165:25 pmIAD - CWL
1 stop10h 50mKLM
Wed 6/199:45 amCWL - IAD
2 stops18h 53mKLM
Deal found 5/10$1,668

Washington, D.C. to Cardiff 2024 flight deals

Discover exclusive flight deals for travel between Washington, D.C. and Cardiff in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,684,066 searches. Data last updated May 11, 2024.
Listed are some of the best fares we've found on flights departing from Washington, D.C. to Cardiff in 2024. Check back in a little while for more flight options.
Fri 9/205:25 pmIAD - CWL
1 stop10h 50mDelta
Wed 9/259:45 amCWL - IAD
1 stop11h 15mDelta
Deal found 5/10$739
Fri 9/2011:00 amDCA - CWL
2 stops17h 15mDelta
Wed 9/259:45 amCWL - DCA
2 stops18h 01mDelta
Deal found 5/10$753
Sun 9/15:25 pmIAD - CWL
1 stop10h 50mDelta
Mon 9/99:45 amCWL - IAD
1 stop10h 50mDelta
Deal found 5/10$774
Sun 9/15:25 pmIAD - CWL
1 stop10h 50mDelta
Mon 9/99:45 amCWL - IAD
2 stops17h 58mDelta
Deal found 5/10$784
Sun 9/13:35 pmBWI - CWL
2 stops12h 40mDelta
Mon 9/99:45 amCWL - BWI
2 stops18h 01mDelta
Deal found 5/10$788
Sun 9/11:30 pmDCA - CWL
2 stops14h 45mDelta
Mon 9/99:45 amCWL - DCA
2 stops16h 33mDelta
Deal found 5/10$788
Wed 10/306:40 pmIAD - CWL
1 stop11h 05mVirgin Atlantic
Sun 11/35:25 pmCWL - IAD
1 stop27h 20mVirgin Atlantic
Deal found 5/9$800
Fri 9/205:25 pmIAD - CWL
1 stop10h 50mDelta
Wed 9/259:45 amCWL - IAD
2 stops17h 58mDelta
Deal found 5/10$803
Wed 10/303:00 pmIAD - CWL
2 stops21h 55mVirgin Atlantic
Sun 11/35:25 pmCWL - IAD
1 stop27h 20mVirgin Atlantic
Deal found 5/9$804

Find flights from Washington, D.C. to Cardiff within your budget

Customize your flight search to find flights from Washington, D.C. 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 2,684,066 searches. Data last updated May 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,113 - $1,569

Route

Depart

Return

Price

Washington, D.C. Reagan-NationalCardiff Wales

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Tue 8/6

2 stops14h 20m

Cardiff Wales

Wed 8/14

2 stops14h 30m

$1,113

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 7/26

1 stop10h 50m

Cardiff Wales

Sun 8/4

1 stop10h 50m

$1,148

Baltimore/WashingtonCardiff Wales

BWI - CWL

BWICWL

Baltimore/Washington

Sat 6/8

2 stops18h 39m

Cardiff Wales

Sat 6/15

2 stops19h 05m

$1,195

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 7/24

1 stop10h 25m

Cardiff Wales

Sun 8/11

1 stop10h 50m

$1,199

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 7/24

2 stops15h 40m

Cardiff Wales

Sun 8/11

1 stop10h 50m

$1,203

Washington, D.C. Reagan-NationalCardiff Wales

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Sat 6/8

2 stops16h 14m

Cardiff Wales

Sat 6/15

2 stops28h 20m

$1,208

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 7/26

2 stops31h 45m

Cardiff Wales

Sun 8/4

2 stops56h 40m

$1,353

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 7/26

2 stops19h 15m

Cardiff Wales

Sun 8/4

2 stops57h 55m

$1,375

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 5/22

2 stops38h 25m

Cardiff Wales

Wed 5/29

2 stops35h 40m

$1,569

Flights are sorted by cheapest first

Deals found on 5/9

When is the cheapest time to fly from Washington, D.C. to Cardiff?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Cardiff. Price data was last updated on May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Washington, D.C. to Cardiff flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Cardiff by month

Plan your trip from Washington, D.C. to Cardiff by taking into account the cheapest months to travel. The average price of a one-way flight from Washington, D.C. to Cardiff is currently $0 while a round-trip flight costs $1,263. Price data was last updated on May 5, 2024.

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Cardiff (average of $708). Flying from Washington, D.C. to Cardiff in June is currently the most expensive (average of $1,565). 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

$708

February

$726

March

$897

April

$784

May

$945

June

$1,565

July

$1,315

August

$998

September

$840

October

$851

November

$901

December

$816

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

39.2 - 64.4 °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 May 11, 2024.
To help decide which airline to fly from Washington, D.C. to Cardiff, see what other customers have to say about Air France, KLM and British Airways. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
10,751 reviews

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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.

8.1
Very good
10,751 reviews
8.1
Very good
10,751 reviews

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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.

7.9
Good
1,589 reviews
8.1
Very good
10,751 reviews

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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.

7.6
Good
1,777 reviews
8.1
Very good
10,751 reviews

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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.

6.8
Okay
6,859 reviews
8.1
Very good
10,751 reviews

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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.

6.7
Okay
729 reviews
8.1
Very good
10,751 reviews

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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 Washington, D.C. 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.?

    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.. Booking flights from Washington, D.C. to Cardiff Wales (CWL) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. from 2 different airlines.

  • Can I find flights from Washington, D.C. to Cardiff for under $1,200 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. to Cardiff for under $1,200. The cheapest flight booked recently is on KLM for just $1,113, but on average you can expect to pay $1,292.

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

    Cheapflights users have booked flights from Washington, D.C. to Cardiff round-trip from $1,113. Other airlines that can offer you cheap pricing are Delta, from $1,148, and British Airways, from $1,353.

  • What are the most popular routes from Washington, D.C. to Cardiff?

  • What does IAD to CWL mean?

    IAD and CWL 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. IAD to CWL refers to a flight route from Washington, D.C. Dulles Intl Airport to Cardiff Wales Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

  • Can I find deals for flights from Washington, D.C. to Cardiff that include extra baggage allowance?

    The amount of baggage you can bring on your Washington, D.C. 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 Washington, D.C. to Cardiff with specific airlines?

    Yes, Cheapflights allows you to browse and filter Washington, D.C. 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 Washington, D.C. to Cardiff that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Cardiff?

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

  • Can I find deals for business class flights from Washington, D.C. to Cardiff?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Cardiff that allow pets onboard?

    Many airlines flying from Washington, D.C. 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 Washington, D.C. to Cardiff?

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

    The Washington, D.C. to Cardiff flight deals you see on this page were last updated on 5/10.

See more FAQs

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Alternative routes for Washington, D.C. to Cardiff
See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Washington, D.C. to Cardiff

Discover the top 2 airlines that operate flights from Washington, D.C. 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 2,684,066 searches. Data last updated May 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$656Average$930FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest$726Average$910FlexibilityNo cancel feeOn-time75%
Search KLM flights

Search flights from Washington, D.C. to Cardiff by cabin class

Find flights from Washington, D.C. to Cardiff, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to Cardiff?

Deals for Washington, D.C. to Cardiff flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Cardiff?

Cheapflights helps you find that perfect flight to Cardiff from Washington, D.C. by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Washington, D.C. to Cardiff with no change fees?

Yes! Cheapflights helps users easily find flights from Washington, D.C. to Cardiff with no change fees.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Cardiff become cheaper?

Of course! You can now track prices for flights from Washington, D.C. to Cardiff and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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