$402+ Cheap flights from Washington, D.C. (WAS) to Cardiff (CWL)

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — CWL
Jul 30 — Aug 61

Leverage Cheapflights for Your Next Trip

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 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 July 25, 2024.

Popular in

July

Cheapest in

October

Round-trip from

$745
(Delta)

One-way from

$402
(Combigo)
High demand for flights, 41% potential price rise
Best time to find cheap flights, 37% potential price drop
From Washington, D.C. (WAS) to Cardiff Wales
One-way flight 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 $861. 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.

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

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Cardiff in the afternoon. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight in the morning.

Cheap Washington, D.C. to Cardiff flights in July & August 2024

Find cheap flight options from Washington, D.C. to Cardiff specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 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.
This Delta deal was found by Cheapflights users on 7/24. 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.
Thu 7/2512:00 pmDCA - CWL
2 stops16h 15mDelta
Sun 7/289:45 amCWL - DCA
2 stops18h 42mDelta
Deal found 7/24$1,649
This KLM deal was found by Cheapflights users on 7/24. 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.
Thu 7/255:25 pmIAD - CWL
1 stop18h 20mKLM
Sun 7/285:15 pmCWL - IAD
1 stop27h 20mKLM
Deal found 7/24$1,859
This KLM deal was found by Cheapflights users on 7/24. 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.
Thu 7/259:20 pmIAD - CWL
2 stops14h 25mKLM
Sun 7/285:15 pmCWL - IAD
1 stop27h 20mKLM
Deal found 7/24$1,876
This KLM deal was found by Cheapflights users on 7/24. 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.
Thu 7/259:20 pmIAD - CWL
2 stops14h 25mKLM
Sun 7/289:45 amCWL - IAD
2 stops14h 25mKLM
Deal found 7/24$1,903
This Delta deal was found by Cheapflights users on 7/24. 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.
Thu 7/253:35 pmBWI - CWL
2 stops12h 40mDelta
Sun 7/289:45 amCWL - BWI
2 stops17h 59mDelta
Deal found 7/24$2,037
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/258:40 pmIAD - CWL
2 stops17h 35mMultiple Airlines
Sun 7/288:45 pmCWL - IAD
3 stops29h 31mMultiple Airlines
Deal found 7/24$2,929
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/258:30 pmBWI - CWL
3 stops35h 10mMultiple Airlines
Sun 7/288:45 pmCWL - BWI
3 stops27h 40mMultiple Airlines
Deal found 7/24$3,168

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 2,752,877 searches. Data last updated July 25, 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.
This Delta deal was found by Cheapflights users on 7/24. 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.
Fri 9/205:25 pmIAD - CWL
1 stop10h 50mDelta
Wed 9/259:45 amCWL - IAD
1 stop11h 15mDelta
Deal found 7/24$745
This Delta deal was found by Cheapflights users on 7/24. 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 10/1511:33 amIAD - CWL
2 stops16h 42mDelta
Wed 10/239:45 amCWL - IAD
1 stop11h 15mDelta
Deal found 7/24$750
This Delta deal was found by Cheapflights users on 7/24. 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.
Fri 9/205:25 pmIAD - CWL
1 stop10h 50mDelta
Wed 9/259:45 amCWL - IAD
2 stops15h 15mDelta
Deal found 7/24$755
This Delta deal was found by Cheapflights users on 7/24. 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 10/153:35 pmBWI - CWL
2 stops12h 40mDelta
Wed 10/239:45 amCWL - BWI
2 stops16h 48mDelta
Deal found 7/24$760
This Delta deal was found by Cheapflights users on 7/24. 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.
Fri 9/206:59 amDCA - CWL
2 stops21h 16mDelta
Wed 9/259:45 amCWL - DCA
2 stops15h 42mDelta
Deal found 7/24$760
This Delta deal was found by Cheapflights users on 7/25. 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.
Sun 9/15:25 pmIAD - CWL
1 stop10h 50mDelta
Mon 9/99:45 amCWL - IAD
1 stop10h 50mDelta
Deal found 7/25$780
This Delta deal was found by Cheapflights users on 7/25. 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.
Sun 9/15:25 pmIAD - CWL
1 stop10h 50mDelta
Mon 9/99:45 amCWL - IAD
2 stops18h 19mDelta
Deal found 7/25$790
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 9/112:25 pmBWI - CWL
2 stops15h 50mDelta
Mon 9/99:45 amCWL - BWI
2 stops17h 40mDelta
Deal found 7/24$795
This Delta deal was found by Cheapflights users on 7/25. 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.
Sun 9/111:35 amDCA - CWL
2 stops16h 40mDelta
Mon 9/99:45 amCWL - DCA
2 stops16h 26mDelta
Deal found 7/25$795

One-way flights to Cardiff from Washington, D.C.

Search for one-way flight options from Washington, D.C. 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 2,752,877 searches. Data last updated July 25, 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. Users in need of a round-trip flight from Washington, D.C. to Cardiff instead should update the search form at the top of page.
This Combigo deal was found by Cheapflights users on 7/24. 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 Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/29:59 pmBWI - CWL
2 stops31h 41mMultiple Airlines
Deal found 7/24$402
This Delta deal was found by Cheapflights users on 7/24. 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.
Sat 11/212:59 pmDCA - CWL
2 stops16h 46mDelta
Deal found 7/24$463
This Combigo deal was found by Cheapflights users on 7/24. 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 Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/210:55 pmIAD - CWL
3 stops32h 35mMultiple Airlines
Deal found 7/24$537
This Combigo deal was found by Cheapflights users on 7/25. 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 Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/210:55 pmIAD - CWL
3 stops32h 35mMultiple Airlines
Deal found 7/25$543
This oojo deal was found by Cheapflights users on 7/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/210:55 pmIAD - CWL
2 stops32h 35mBritish Airways
Deal found 7/24$548
This KLM deal was found by Cheapflights users on 7/24. 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.
Sat 11/26:35 pmIAD - CWL
1 stop11h 10mKLM
Deal found 7/24$567

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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$745 - $1,127

Route

Depart

Return

Price

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 9/20

1 stop10h 50m

Cardiff Wales

Wed 9/25

1 stop11h 15m

$745

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 10/15

2 stops16h 42m

Cardiff Wales

Wed 10/23

1 stop11h 15m

$750

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 9/20

1 stop10h 50m

Cardiff Wales

Wed 9/25

2 stops15h 15m

$755

Baltimore/WashingtonCardiff Wales

BWI - CWL

BWICWL

Baltimore/Washington

Tue 10/15

2 stops12h 40m

Cardiff Wales

Wed 10/23

2 stops16h 48m

$760

Washington, D.C. Reagan-NationalCardiff Wales

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 9/20

2 stops21h 16m

Cardiff Wales

Wed 9/25

2 stops15h 42m

$760

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 10/15

2 stops31h 45m

Cardiff Wales

Wed 10/23

2 stops37h 30m

$974

Washington, D.C. Reagan-NationalCardiff Wales

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Tue 10/15

3 stops21h 45m

Cardiff Wales

Wed 10/23

3 stops24h 37m

$1,016

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 9/6

2 stops31h 45m

Cardiff Wales

Sat 9/14

2 stops36h 25m

$1,055

Washington, D.C. Dulles IntlCardiff Wales

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 9/1

2 stops14h 25m

Cardiff Wales

Mon 9/9

2 stops14h 25m

$1,127

Flights are sorted by cheapest first

Deals found on 7/24

What is the cheapest day 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 July 21, 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 Wednesday afternoons when fares are most often at their lowest. Sunday afternoons 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 Washington, D.C. to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Washington, D.C. 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.

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

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 July 25, 2024.
To help decide which airline to fly from Washington, D.C. to Cardiff, see what other customers have to say about British Airways and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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
9,630 reviews
8.0
Very good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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
1,417 reviews
8.0
Very good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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

6.7
Okay
6,717 reviews
8.0
Very good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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 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 $800 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. to Cardiff for under $800. The cheapest flight booked recently is on Delta for just $745, but on average you can expect to pay $1,005.

  • 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 $745. Other airlines that can offer you cheap pricing are British Airways, from $974, and KLM, from $1,127. You may be able to fly from Washington, D.C. to Cardiff for 13% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to Cardiff one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $463. British Airways flights start at $548 while deals on KLM start at $567 one-way.

  • 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 7/25.

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

    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 $1,524). 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.

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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$656Average$938FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$726Average$792FlexibilityNo cancel feeOn-time75%

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.
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.