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 $799. Other airlines that can offer you cheap pricing are Virgin Atlantic, from $800, and Delta, from $810. You may be able to fly from Washington, D.C. to Cardiff for 28% less than the average price by searching for these airlines.

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

Travelers seeking maximum savings on their Washington, D.C. to Cardiff flight should consider departing on Monday 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.

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

The most popular flight routes from Washington, D.C. to Cardiff are Washington, D.C. Dulles Intl - Cardiff Wales, Baltimore/Washington - Cardiff Wales and Washington, D.C. Reagan-National - Cardiff Wales.

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

Flying to your destination on a Thursday 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?

November can be a great time to fly to Cardiff from Washington, D.C. with a flight ticket averaging about $1,117. Cheapflights users have found deals in the month of November for as cheap as $735. The most expensive prices can be found in the month of May.

Most accurate provider : When it comes to deals on Washington, D.C.-Cardiff flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Cardiff flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Cardiff flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C.-Cardiff flights, Cheapflights users trust eDreams the most. eDreams 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.-Cardiff flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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.

$563+ Flights from Washington, D.C. to Cardiff

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

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$799 (KLM)
One-way from	$563 (Kiwi.com)
Popular in	May
Cheapest in	November
Average price	$862

Provider with most accurate pricing for Washington, D.C. (WAS)-Cardiff Wales flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Cardiff Wales flights.

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From Washington, D.C. (WAS) to Cardiff Wales

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One-way flight from Washington, D.C. (WAS) to Cardiff Wales

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High demand for flights, 19% potential price rise

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Best time to find cheap flights, 6% potential price drop

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Average for round-trip flights in December 2024

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

Cheapest flights from Washington, D.C. to Cardiff
Explore the most affordable flight options available from Washington, D.C. to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.

Mon 12/235:35 pmIAD - CWL

1 stop11h 15mKLM

Mon 12/305:25 pmCWL - IAD

1 stop27h 20mKLM

Deal found 12/19

$1,979

Mon 12/235:35 pmIAD - CWL

1 stop18h 20mDelta

Mon 12/3010:20 amCWL - IAD

2 stops19h 18mDelta

Deal found 12/19

$2,065

Best flights from Washington, D.C. to Cardiff
Discover carefully curated flight deals from Washington, D.C. to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 20, 2024.

Tue 1/285:35 pmIAD - CWL

1 stop11h 15mKLM

Sun 2/25:25 pmCWL - IAD

1 stop27h 20mKLM

Deal found 12/18

$799

Sat 1/185:35 pmIAD - CWL

1 stop11h 15mVirgin Atlantic

Sat 1/255:25 pmCWL - IAD

1 stop27h 20mVirgin Atlantic

Deal found 12/19

$800

Tue 1/285:35 pmIAD - CWL

1 stop11h 15mDelta

Tue 2/410:25 amCWL - IAD

2 stops27h 43mDelta

Deal found 12/18

$810

Sun 1/265:10 pmIAD - CWL

1 stop14h 40mMultiple Airlines

Sun 2/28:20 amCWL - IAD

1 stop12h 20mMultiple Airlines

Deal found 12/18

$935

Sat 1/186:00 pmIAD - CWL

2 stops36h 30mAer Lingus

Sat 1/2512:00 pmCWL - IAD

2 stops36h 45mAer Lingus

Deal found 12/19

$997

Wed 1/296:00 pmIAD - CWL

2 stops13h 25mBritish Airways

Sun 2/212:55 pmCWL - IAD

2 stops31h 40mBritish Airways

Deal found 12/18

$1,079

Sun 1/263:30 pmBWI - CWL

2 stops13h 20mDelta

Sat 2/110:25 amCWL - BWI

2 stops37h 53mDelta

Deal found 12/18

$814

Sun 1/261:59 pmDCA - CWL

2 stops14h 51mDelta

Sun 2/210:20 amCWL - DCA

2 stops18h 19mDelta

Deal found 12/18

$814

Wed 1/298:30 pmBWI - CWL

2 stops34h 55mAer Lingus

Sat 2/112:00 pmCWL - BWI

2 stops35h 45mAer Lingus

Deal found 12/18

$1,035

Mon 4/219:59 amDCA - CWL

3 stops20h 31mMultiple Airlines

Mon 4/2812:00 pmCWL - DCA

3 stops24h 50mMultiple Airlines

Deal found 12/18

$1,097

Tue 1/282:01 pmBWI - CWL

2 stops14h 49mMultiple Airlines

Fri 1/3110:25 amCWL - BWI

2 stops17h 43mMultiple Airlines

Deal found 12/18

$1,147

Last-minute flights from Washington, D.C. to Cardiff
Discover last-minute flight deals from Washington, D.C. to Cardiff. Data last updated December 20, 2024 and is based on user searches.

Sat 1/185:35 pmIAD - CWL

1 stop11h 15mVirgin Atlantic

Sat 1/255:25 pmCWL - IAD

1 stop27h 20mVirgin Atlantic

Deal found 12/19

$800

Sat 1/184:25 pmDCA - CWL

2 stops12h 25mKLM

Sat 1/2510:25 amCWL - DCA

2 stops17h 03mKLM

Deal found 12/19

$815

Sat 1/186:00 pmIAD - CWL

2 stops36h 30mAer Lingus

Sat 1/2512:00 pmCWL - IAD

2 stops36h 45mAer Lingus

Deal found 12/19

$997

Sun 1/2612:41 pmBWI - CWL

2 stops16h 09mDelta

Sun 2/210:20 amCWL - BWI

2 stops17h 45mDelta

Deal found 12/18

$814

Sun 1/2610:00 amDCA - CWL

2 stops18h 50mDelta

Tue 2/410:25 amCWL - DCA

2 stops18h 14mDelta

Deal found 12/18

$814

Sun 1/265:10 pmIAD - CWL

1 stop14h 40mMultiple Airlines

Sun 2/28:20 amCWL - IAD

1 stop12h 20mMultiple Airlines

Deal found 12/18

$935

Tue 1/285:35 pmIAD - CWL

1 stop11h 15mKLM

Sun 2/25:25 pmCWL - IAD

1 stop27h 20mKLM

Deal found 12/18

$799

Tue 1/285:35 pmIAD - CWL

1 stop11h 15mDelta

Tue 2/410:25 amCWL - IAD

2 stops27h 43mDelta

Deal found 12/18

$810

Tue 1/282:01 pmBWI - CWL

2 stops14h 49mMultiple Airlines

Fri 1/3110:25 amCWL - BWI

2 stops17h 43mMultiple Airlines

Deal found 12/18

$1,147

Tue 1/281:59 pmDCA - CWL

2 stops14h 51mMultiple Airlines

Fri 1/3110:25 amCWL - DCA

2 stops17h 58mMultiple Airlines

Deal found 12/18

$1,147

Wed 1/298:30 pmBWI - CWL

2 stops34h 55mAer Lingus

Sat 2/112:00 pmCWL - BWI

2 stops35h 45mAer Lingus

Deal found 12/18

$1,035

Wed 1/296:00 pmIAD - CWL

2 stops13h 25mBritish Airways

Sun 2/212:55 pmCWL - IAD

2 stops31h 40mBritish Airways

Deal found 12/18

$1,079

One-way flights from Washington, D.C. to Cardiff
Search for one-way flight options from Washington, D.C. to Cardiff. Find affordable one-way fares based on user searches. Data last updated December 20, 2024.

Sun 1/56:10 pmBWI - CWL

3 stops34h 20mMultiple Airlines

Deal found 12/19

$563

Sun 1/59:55 pmIAD - CWL

2 stops32h 35mBritish Airways

Deal found 12/19

$1,102

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 1/28

5:35 pm-9:50 am

1 stop11h 15m

Cardiff Wales

Sun 2/2

5:25 pm-3:45 pm

1 stop27h 20m

$799

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sat 1/18

5:35 pm-9:50 am

1 stop11h 15m

Cardiff Wales

Sat 1/25

5:25 pm-3:45 pm

1 stop27h 20m

$800

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Tue 1/28

5:35 pm-9:50 am

1 stop11h 15m

Cardiff Wales

Tue 2/4

10:25 am-9:08 am

2 stops27h 43m

$810

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Sun 1/26

3:30 pm-9:50 am

2 stops13h 20m

Cardiff Wales

Sat 2/1

10:25 am-7:18 pm

2 stops37h 53m

$814

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 1/29

12:05 pm-9:50 am

2 stops16h 45m

Cardiff Wales

Tue 2/4

10:25 am-11:23 pm

2 stops17h 58m

$814

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sat 4/5

5:25 pm-4:45 pm

1 stop18h 20m

Cardiff Wales

Sat 4/12

5:35 pm-11:33 pm

2 stops34h 58m

$877

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 1/26

5:10 pm-12:50 pm

1 stop14h 40m

Cardiff Wales

Sun 2/2

8:20 am-3:40 pm

1 stop12h 20m

$935

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sat 1/18

6:00 pm-11:30 am

2 stops36h 30m

Cardiff Wales

Sat 1/25

12:00 pm-7:45 pm

2 stops36h 45m

$997

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sat 4/5

5:50 pm-12:25 pm

2 stops13h 35m

Cardiff Wales

Sat 4/12

1:10 pm-3:50 pm

2 stops31h 40m

$1,027

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Sat 5/17

6:50 pm-8:10 pm

3 stops20h 20m

Cardiff Wales

Fri 5/23

7:45 pm-5:40 pm

2 stops26h 55m

$1,050

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 14 results

Most accurate provider: When it comes to deals on Washington, D.C.-Cardiff flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Cardiff flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Cardiff flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C.-Cardiff flights, Cheapflights users trust eDreams the most. eDreams 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.-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 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.

Travel insights for flights from Washington, D.C. to Cardiff

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

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Cardiff (average of $773). Flying from Washington, D.C. to Cardiff in June is currently the most expensive (average of $1,622). 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 WAS to 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 2% on your trip compared to booking a flight in the morning.

Rainfall in Cardiff 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

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

To help decide which airline to fly from Washington, D.C. to Cardiff, see what other customers have to say about Delta and Aer Lingus. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,601 reviews

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

8,601 reviews

Delta

8.0

Very good

8,601 reviews

Reviews

1 / 10

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

KLM

7.8

Good

1,349 reviews

Delta

8.0

Very good

8,601 reviews

Reviews

1 / 10

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

Virgin Atlantic

7.5

Good

668 reviews

Delta

8.0

Very good

8,601 reviews

Reviews

1 / 10

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

Aer Lingus

7.1

Good

1,076 reviews

Delta

8.0

Very good

8,601 reviews

Reviews

1 / 10

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

British Airways

6.6

Okay

6,813 reviews

Delta

8.0

Very good

8,601 reviews

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

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.
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 $799. Other airlines that can offer you cheap pricing are Virgin Atlantic, from $800, and Delta, from $810. You may be able to fly from Washington, D.C. to Cardiff for 28% less than the average price by searching for these airlines.
What are the most popular routes from Washington, D.C. to Cardiff?
The most popular flight routes from Washington, D.C. to Cardiff are Washington, D.C. Dulles Intl - Cardiff Wales, Baltimore/Washington - Cardiff Wales and Washington, D.C. Reagan-National - Cardiff Wales.
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.
What is the cheapest month to book a flight from Washington, D.C. to Cardiff?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Cardiff (average of $773). Flying from Washington, D.C. to Cardiff in June is currently the most expensive (average of $1,622). 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

Alternative routes for Washington, D.C. to Cardiff

Dulles Intl to Manchester flights

Reagan-National to Manchester flights

Reagan-National to Bristol flights

Dulles Intl to Bristol flights

Dulles Intl to Cardiff flights

Reagan-National to Cardiff flights

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

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$713	Average$790	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$751	Average$939	FlexibilityNo cancel fee	On-timeN/A

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$563+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Cardiff with Cheapflights

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2. Select your favorite providers

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

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Round-trip from

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Cheapest in

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

Cheapest flights from Washington, D.C. to CardiffExplore the most affordable flight options available from Washington, D.C. to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.

Explore the most affordable flight options available from Washington, D.C. to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.

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

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.

Travel insights for flights from Washington, D.C. to Cardiff

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

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

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

Find hourly flight availability from Washington, D.C. 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 December 20, 2024.

Rainfall in Cardiff by month

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

Temperature in Cardiff by month

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

Reviews of airlines servicing Cardiff

To help decide which airline to fly from Washington, D.C. to Cardiff, see what other customers have to say about Delta and Aer Lingus. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.?

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

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

Can I find deals for flights from Washington, D.C. to Cardiff that include hotel bookings?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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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

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Cheapest flights from Washington, D.C. to Cardiff
Explore the most affordable flight options available from Washington, D.C. to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.