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

KLM and Delta can get you from District of Columbia to Cardiff in just under 16h 10m. Your travel time can differ by up to 2h 45m. There are 3548 mi between District of Columbia and Cardiff. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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.

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).

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

Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from District of Columbia to Cardiff.

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

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

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

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

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

Yes. Cheapflights offers flight deals from District of Columbia 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.

$678+ Flights from District of Columbia to Cardiff

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Cheap flight deals from District of Columbia to Cardiff

Cheapest flights from District of Columbia to Cardiff
Explore the most affordable flight options available from District of Columbia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

Mon 12/86:05 pmIAD - CWL

1 stop10h 45mMultiple Airlines

Mon 12/225:15 pmCWL - IAD

1 stop27h 50mMultiple Airlines

Deal found 12/4

$747

Mon 12/811:30 amDCA - CWL

2 stops17h 20mDelta

Mon 12/2210:20 amCWL - DCA

2 stops27h 51mDelta

Deal found 12/4

$778

Mon 12/812:30 pmIAD - CWL

2 stops16h 20mDelta

Mon 12/2210:20 amCWL - IAD

2 stops17h 48mDelta

Deal found 12/4

$1,386

Best flights from District of Columbia to Cardiff
Discover carefully curated flight deals from District of Columbia to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.

Fri 1/1612:55 pmDCA - CWL

3 stops25h 45mMultiple Airlines

Fri 1/2310:25 pmCWL - DCA

2 stops26h 20mMultiple Airlines

Deal found 12/2

$678

Wed 1/2812:40 pmIAD - CWL

2 stops16h 10mKLM

Mon 2/25:15 pmCWL - IAD

1 stop27h 50mKLM

Deal found 12/3

$756

Fri 1/165:00 pmDCA - CWL

2 stops18h 55mDelta

Fri 1/2310:20 amCWL - DCA

2 stops18h 21mDelta

Deal found 12/2

$779

Fri 1/166:20 amIAD - CWL

2 stops22h 30mVirgin Atlantic

Fri 1/2310:20 amCWL - IAD

2 stops19h 04mVirgin Atlantic

Deal found 12/3

$945

Fri 1/1611:10 amDCA - CWL

2 stops17h 40mKLM

Fri 1/2310:20 amCWL - DCA

2 stops18h 21mKLM

Deal found 12/2

$769

Wed 1/281:40 pmDCA - CWL

2 stops15h 10mDelta

Mon 2/210:20 amCWL - DCA

2 stops17h 38mDelta

Deal found 12/3

$779

Sun 1/186:05 pmIAD - CWL

1 stop17h 40mKLM

Sun 1/255:30 pmCWL - IAD

1 stop27h 35mKLM

Deal found 12/4

$777

Fri 1/1611:10 amDCA - CWL

2 stops24h 45mDelta

Tue 1/2010:20 amCWL - DCA

2 stops27h 50mDelta

Deal found 12/1

$779

Sun 1/189:00 amIAD - CWL

3 stops33h 05mMultiple Airlines

Sun 1/259:20 pmCWL - IAD

2 stops22h 55mMultiple Airlines

Deal found 12/4

$942

Mon 1/1212:55 pmDCA - CWL

2 stops15h 55mKLM

Mon 1/1910:20 amCWL - DCA

2 stops17h 28mKLM

Deal found 12/2

$779

Wed 1/2810:08 amIAD - CWL

2 stops18h 42mDelta

Mon 2/210:20 amCWL - IAD

2 stops13h 49mDelta

Deal found 12/3

$779

Fri 1/169:45 amIAD - CWL

3 stops28h 55mMultiple Airlines

Fri 1/2310:25 pmCWL - IAD

2 stops21h 50mMultiple Airlines

Deal found 12/3

$1,037

Fri 1/1612:18 pmIAD - CWL

2 stops16h 32mKLM

Fri 1/235:15 pmCWL - IAD

1 stop27h 50mKLM

Deal found 12/3

$949

Last-minute flights from District of Columbia to Cardiff
Discover last-minute flight deals from District of Columbia to Cardiff. Data last updated December 4, 2025 and is based on user searches.

Mon 12/86:05 pmIAD - CWL

1 stop10h 45mMultiple Airlines

Mon 12/225:15 pmCWL - IAD

1 stop27h 50mMultiple Airlines

Deal found 12/4

$747

Fri 1/1612:55 pmDCA - CWL

3 stops25h 45mMultiple Airlines

Fri 1/2310:25 pmCWL - DCA

2 stops26h 20mMultiple Airlines

Deal found 12/2

$678

Fri 1/1611:10 amDCA - CWL

2 stops17h 40mKLM

Fri 1/2310:20 amCWL - DCA

2 stops18h 21mKLM

Deal found 12/2

$769

Fri 1/1611:10 amDCA - CWL

2 stops24h 45mDelta

Tue 1/2010:20 amCWL - DCA

2 stops27h 50mDelta

Deal found 12/1

$779

Fri 1/166:20 amIAD - CWL

2 stops22h 30mVirgin Atlantic

Fri 1/2310:20 amCWL - IAD

2 stops19h 04mVirgin Atlantic

Deal found 12/3

$945

Fri 1/1612:18 pmIAD - CWL

2 stops16h 32mKLM

Fri 1/235:15 pmCWL - IAD

1 stop27h 50mKLM

Deal found 12/3

$949

Fri 1/169:45 amIAD - CWL

3 stops28h 55mMultiple Airlines

Fri 1/2310:25 pmCWL - IAD

2 stops21h 50mMultiple Airlines

Deal found 12/3

$1,037

Sun 1/186:05 pmIAD - CWL

1 stop17h 40mKLM

Sun 1/255:30 pmCWL - IAD

1 stop27h 35mKLM

Deal found 12/4

$777

Sun 1/189:00 amIAD - CWL

3 stops33h 05mMultiple Airlines

Sun 1/259:20 pmCWL - IAD

2 stops22h 55mMultiple Airlines

Deal found 12/4

$942

Wed 1/2812:40 pmIAD - CWL

2 stops16h 10mKLM

Mon 2/25:15 pmCWL - IAD

1 stop27h 50mKLM

Deal found 12/3

$756

Wed 1/2810:08 amIAD - CWL

2 stops18h 42mDelta

Mon 2/210:20 amCWL - IAD

2 stops13h 49mDelta

Deal found 12/3

$779

One-way flights from District of Columbia to Cardiff
Search for one-way flight options from District of Columbia to Cardiff. Find affordable one-way fares based on user searches. Data last updated December 4, 2025.

Thu 12/189:40 amDCA - CWL

3 stops28h 35mMultiple Airlines

Deal found 12/1

$1,217

Thu 12/1812:32 pmDCA - CWL

2 stops16h 18mKLM

Deal found 12/1

$1,530

Find flight deals from District of Columbia to Cardiff

Most accurate provider	eDreams 3 stars
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Round-trip from	$678 (Mytrip)

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

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From District of Columbia to Cardiff Wales

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 1/16

12:55 pm-7:40 pm

3 stops25h 45m

Cardiff Wales

Fri 1/23

10:25 pm-7:45 pm

2 stops26h 20m

$678

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 1/28

12:40 pm-9:50 am

2 stops16h 10m

Cardiff Wales

Mon 2/2

5:15 pm-4:05 pm

1 stop27h 50m

$756

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 1/16

11:10 am-9:50 am

2 stops17h 40m

Cardiff Wales

Fri 1/23

10:20 am-11:41 pm

2 stops18h 21m

$769

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 1/18

6:05 pm-4:45 pm

1 stop17h 40m

Cardiff Wales

Sun 1/25

5:30 pm-4:05 pm

1 stop27h 35m

$777

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 1/16

5:00 pm-4:55 pm

2 stops18h 55m

Cardiff Wales

Fri 1/23

10:20 am-11:41 pm

2 stops18h 21m

$779

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Wed 1/28

1:40 pm-9:50 am

2 stops15h 10m

Cardiff Wales

Mon 2/2

10:20 am-10:58 pm

2 stops17h 38m

$779

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 1/16

11:10 am-4:55 pm

2 stops24h 45m

Cardiff Wales

Tue 1/20

10:20 am-9:10 am

2 stops27h 50m

$779

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Mon 1/12

12:55 pm-9:50 am

2 stops15h 55m

Cardiff Wales

Mon 1/19

10:20 am-10:48 pm

2 stops17h 28m

$779

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 1/28

10:08 am-9:50 am

2 stops18h 42m

Cardiff Wales

Mon 2/2

10:20 am-7:09 pm

2 stops13h 49m

$779

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 1/18

9:00 am-11:05 pm

3 stops33h 05m

Cardiff Wales

Sun 1/25

9:20 pm-3:15 pm

2 stops22h 55m

$942

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 15 results

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

Have a flexible travel schedule? Discover the best time to fly to Cardiff from District of Columbia 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.

Cheapflights Insights

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

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

A simple way to save on the total cost of your ticket is to fly from District of Columbia to Cardiff at noon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the evening.

Related info for your journey

What airport do you fly into for flights to Cardiff from District of Columbia?
Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from District of Columbia to Cardiff.
How long is the flight from District of Columbia to Cardiff?
KLM and Delta can get you from District of Columbia to Cardiff in just under 16h 10m. Your travel time can differ by up to 2h 45m. There are 3548 mi between District of Columbia and Cardiff. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
Can I find deals for flights from District of Columbia to Cardiff that include hotel bookings?
Yes. In addition to deals on District of Columbia to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from District of Columbia to Cardiff?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Cardiff.
Can I find deals for business class flights from District of Columbia to Cardiff?
Yes. Cheapflights offers flight deals from District of Columbia 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.

See more FAQs

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Top airline flying from District of Columbia to Cardiff

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$765	Average$827	FlexibilityNo cancel fee	On-time75%

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$678+ Cheap flights from District of Columbia to Cardiff (CWL)

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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from District of Columbia to Cardiff with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from District of Columbia to Cardiff

Cheapest flights from District of Columbia to CardiffExplore the most affordable flight options available from District of Columbia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

Explore the most affordable flight options available from District of Columbia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

Find flight deals from District of Columbia to Cardiff

Keep the following information in mind while searching for District of Columbia to Cardiff flight deals. Data was last updated December 4, 2025.

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

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

Find hourly flight availability from District of Columbia 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 4, 2025.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

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

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

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

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

Traveling to a place near Cardiff?

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Alternative routes for District of Columbia to Cardiff

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Top airline flying from District of Columbia to Cardiff

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Cheapest flights from District of Columbia to Cardiff
Explore the most affordable flight options available from District of Columbia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.