How long is the flight from Cardiff to District of Columbia?

For as low as £624, KLM can have you in District of Columbia from Cardiff in 10h 50m. Airlines will cover a distance of 3548 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in District of Columbia ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit District of Columbia when rainfall is around 66.0 mm.

If weather is an important factor for your trip to District of Columbia, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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

When flying from Cardiff to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Cardiff to District of Columbia?

Cardiff Wales (CWL) is the airport you will fly out of if you book a flight from Cardiff to District of Columbia. It is only a 9.1 mi journey to Cardiff Wales (CWL) from Cardiff’s city center.

Can I find deals for flights from Cardiff to District of Columbia that include hotel bookings?

Yes. In addition to deals on Cardiff to District of Columbia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Cardiff to District of Columbia?

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

Can I find deals for business class flights from Cardiff to District of Columbia?

Yes. Cheapflights offers flight deals from Cardiff to District of Columbia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£575+ Cheap Flights from Cardiff to District of Columbia

Cheap flight deals from Cardiff to District of Columbia

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

Cheapest flights from Cardiff to District of Columbia
Explore the most affordable flight options available from Cardiff to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Sat 5/911:35 -

1 stop15h 56m

Mon 21/912:55 -

3 stops28h 55m

Deal found 19/8£575

Sat 5/911:35 -

1 stop13h 49m

Mon 21/916:00 -

2 stops25h 50m

Deal found 19/8£577

Tue 15/909:45 -

1 stop10h 50m

Mon 21/918:10 -

1 stop17h 35m

Deal found 15/8£624

Wed 30/909:45 -

2 stops18h 29m

Wed 7/1017:13 -

2 stops18h 32m

Deal found 16/8£644

Wed 30/909:45 -

2 stops18h 50m

Wed 7/1010:16 -

2 stops17h 59m

Deal found 16/8£644

Tue 15/923:15 -

3 stops26h 10m

Mon 21/920:30 -

2 stops21h 20m

Deal found 15/8£658

Wed 30/917:15 -

1 stop27h 20m

Wed 7/1012:29 -

2 stops15h 46m

Deal found 16/8£663

Sat 5/917:35 -

1 stop27h 00m

Mon 21/918:10 -

1 stop10h 05m

Deal found 19/8£669

Tue 15/917:15 -

2 stops34h 44m

Mon 21/912:55 -

2 stops22h 50m

Deal found 15/8£800

Wed 30/923:50 -

1 stop20h 55m

Wed 7/1017:15 -

1 stop24h 10m

Deal found 16/8£835

Find flight deals from Cardiff to District of Columbia

Round-trip from	£575

5/9-21/9
4 total stops
44h 51m total
Cardiff to District of Columbia

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cardiff to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Sat 5/9

11:35-22:31

1 stop15h 56m

Washington, D.C. Reagan-National

Mon 21/9

12:55-22:50

3 stops28h 55m

£575

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 5/9

11:35-20:24

1 stop13h 49m

Washington, D.C. Dulles Intl

Mon 21/9

16:00-22:50

2 stops25h 50m

£577

Fastest return journey

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Tue 15/9

09:45-15:35

1 stop10h 50m

Washington, D.C. Dulles Intl

Mon 21/9

12:25-09:15

2 stops15h 50m

£627

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Wed 30/9

09:45-23:14

2 stops18h 29m

Washington, D.C. Dulles Intl

Wed 7/10

17:13-16:45

2 stops18h 32m

£644

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Wed 30/9

09:45-23:35

2 stops18h 50m

Washington, D.C. Reagan-National

Wed 7/10

10:16-09:15

2 stops17h 59m

£644

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Tue 15/9

23:15-20:25

3 stops26h 10m

Washington, D.C. Dulles Intl

Mon 21/9

20:30-22:50

2 stops21h 20m

£658

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Wed 30/9

17:15-15:35

1 stop27h 20m

Washington, D.C. Dulles Intl

Wed 7/10

12:29-09:15

2 stops15h 46m

£663

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Sat 5/9

17:35-15:35

1 stop27h 00m

Washington, D.C. Dulles Intl

Mon 21/9

18:10-09:15

1 stop10h 05m

£669

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Tue 15/9

17:15-22:59

2 stops34h 44m

Washington, D.C. Reagan-National

Mon 21/9

12:55-16:45

2 stops22h 50m

£800

CardiffWashington, D.C.

CWL Cardiff Wales - IAD Washington, D.C. Dulles Intl

CWLIAD

Cardiff Wales

Wed 30/9

23:50-15:45

1 stop20h 55m

Washington, D.C. Dulles Intl

Wed 7/10

17:15-22:25

1 stop24h 10m

£835

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Sorted by cheapest first

Best time to book a flight from Cardiff to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Cardiff with our price prediction graph.

CWL-DCA

CWL-IAD

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.

Cheapflights Insights

Everything you need to know about your flight from Cardiff to District of Columbia

CWL-USDC

CWL-DCA

CWL-IAD

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

Reviews of airlines servicing District of Columbia

Check out reviews from past customers who have flown with KLM from Cardiff to District of Columbia to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

KLM

7.8

Good

1,560 reviews

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

Related info for your journey

What airport do you fly from for flights from Cardiff to District of Columbia?
Cardiff Wales (CWL) is the airport you will fly out of if you book a flight from Cardiff to District of Columbia. It is only a 9.1 mi journey to Cardiff Wales (CWL) from Cardiff’s city center.
How long is the flight from Cardiff to District of Columbia?
For as low as £624, KLM can have you in District of Columbia from Cardiff in 10h 50m. Airlines will cover a distance of 3548 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Cardiff to District of Columbia that include hotel bookings?
Yes. In addition to deals on Cardiff to District of Columbia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Cardiff to District of Columbia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to District of Columbia.
Can I find deals for business class flights from Cardiff to District of Columbia?
Yes. Cheapflights offers flight deals from Cardiff to District of Columbia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Cardiff to District of Columbia.

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Cheap flights from Cardiff to District of Columbia from £575

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cardiff to District of Columbia

Cheapest flights from Cardiff to District of ColumbiaExplore the most affordable flight options available from Cardiff to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Explore the most affordable flight options available from Cardiff to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Best flights from Cardiff to District of ColumbiaDiscover carefully curated flight deals from Cardiff to District of Columbia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Discover carefully curated flight deals from Cardiff to District of Columbia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Last-minute flights from Cardiff to District of ColumbiaDiscover last-minute flight deals from Cardiff to District of Columbia. Data last updated 20 August 2026 and is based on user searches.

Discover last-minute flight deals from Cardiff to District of Columbia. Data last updated 20 August 2026 and is based on user searches.

Find flight deals from Cardiff to District of Columbia

Round-trip from

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Use the filters below to find and compare flights from Cardiff to District of Columbia that are best for you.

Best time to book a flight from Cardiff to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Cardiff with our price prediction graph.

Cheapflights Insights

Reviews of airlines servicing District of Columbia

Check out reviews from past customers who have flown with KLM from Cardiff to District of Columbia to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Cardiff to District of Columbia?

How long is the flight from Cardiff to District of Columbia?

Can I find deals for flights from Cardiff to District of Columbia that include hotel bookings?

How can I find direct flights from Cardiff to District of Columbia?

Can I find deals for business class flights from Cardiff to District of Columbia?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Cardiff to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to District of Columbia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

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Search flights from Cardiff to District of Columbia by cabin class

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Cardiff and District of Columbia flights

Browse other Cardiff and District of Columbia flight options. Last updated on 20 August 2026.

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Cheapest flights from Cardiff to District of Columbia
Explore the most affordable flight options available from Cardiff to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Best flights from Cardiff to District of Columbia
Discover carefully curated flight deals from Cardiff to District of Columbia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Last-minute flights from Cardiff to District of Columbia
Discover last-minute flight deals from Cardiff to District of Columbia. Data last updated 20 August 2026 and is based on user searches.