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District of Columbia

$842+ Cheap flights from Cardiff (CWL) to District of Columbia

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — IAD
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Cardiff to District of Columbia

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 layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

This Mytrip deal was found by Cheapflights users on 12/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/295:25 pmCWL - IAD
3 stops32h 35mMultiple Airlines
Thu 2/55:30 pmIAD - CWL
3 stops23h 30mMultiple Airlines
Deal found 12/15$842
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:15 pmCWL - IAD
1 stop27h 50mKLM
Tue 3/107:05 pmIAD - CWL
1 stop10h 45mKLM
Deal found 12/15$927
This Delta deal was found by Cheapflights users on 12/16. 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 1/3010:20 amCWL - DCA
2 stops18h 21mDelta
Fri 2/612:00 pmDCA - CWL
2 stops16h 50mDelta
Deal found 12/16$1,047
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:30 pmCWL - IAD
2 stops22h 00mMultiple Airlines
Tue 3/106:05 pmIAD - CWL
1 stop17h 25mMultiple Airlines
Deal found 12/15$900
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2910:20 amCWL - IAD
2 stops19h 04mKLM
Thu 2/56:05 pmIAD - CWL
1 stop10h 45mKLM
Deal found 12/15$1,007
This Mytrip deal was found by Cheapflights users on 12/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3010:25 pmCWL - IAD
2 stops21h 50mMultiple Airlines
Fri 2/610:30 pmIAD - CWL
2 stops16h 10mMultiple Airlines
Deal found 12/16$957
This KLM deal was found by Cheapflights users on 12/15. 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 1/2910:20 amCWL - DCA
2 stops17h 28mKLM
Thu 2/512:55 pmDCA - CWL
2 stops15h 55mKLM
Deal found 12/15$1,007
This Trip.com deal was found by Cheapflights users on 12/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:15 pmCWL - DCA
2 stops28h 49mKLM
Tue 3/108:45 pmDCA - CWL
2 stops16h 10mKLM
Deal found 12/15$1,009
This Mytrip deal was found by Cheapflights users on 12/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3010:25 pmCWL - DCA
3 stops26h 20mMultiple Airlines
Fri 2/66:59 amDCA - CWL
3 stops31h 41mMultiple Airlines
Deal found 12/16$1,104
This Mytrip deal was found by Cheapflights users on 12/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2910:30 amCWL - DCA
2 stops14h 15mMultiple Airlines
Thu 2/59:40 amDCA - CWL
3 stops31h 20mMultiple Airlines
Deal found 12/15$1,243

Find flight deals from Cardiff to District of Columbia

Keep the following information in mind while searching for Cardiff to District of Columbia flight deals. Data was last updated December 16, 2025.

Round-trip from

$842
(Mytrip)
From Cardiff Wales to District of Columbia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cardiff to District of Columbia 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 2,558,603 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from Cardiff to District of Columbia that are best for you.

Fly from

Cardiff

Fly to

District of Columbia

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 1/29

5:25 pm-9:00 pm

3 stops32h 35m

Washington, D.C. Dulles Intl

Thu 2/5

5:30 pm-10:00 pm

3 stops23h 30m

$842

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 3/2

11:30 pm-4:30 pm

2 stops22h 00m

Washington, D.C. Dulles Intl

Tue 3/10

6:05 pm-3:30 pm

1 stop17h 25m

$900

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 3/2

5:15 pm-4:05 pm

1 stop27h 50m

Washington, D.C. Dulles Intl

Tue 3/10

7:05 pm-9:50 am

1 stop10h 45m

$927

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 1/30

10:25 pm-3:15 pm

2 stops21h 50m

Washington, D.C. Dulles Intl

Fri 2/6

10:30 pm-7:40 pm

2 stops16h 10m

$957

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 1/29

10:20 am-12:24 am

2 stops19h 04m

Washington, D.C. Dulles Intl

Thu 2/5

6:05 pm-9:50 am

1 stop10h 45m

$1,007

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 1/29

10:20 am-10:48 pm

2 stops17h 28m

Washington, D.C. Reagan-National

Thu 2/5

12:55 pm-9:50 am

2 stops15h 55m

$1,007

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 3/2

5:15 pm-5:04 pm

2 stops28h 49m

Washington, D.C. Reagan-National

Tue 3/10

8:45 pm-4:55 pm

2 stops16h 10m

$1,009

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Fri 1/30

10:20 am-11:41 pm

2 stops18h 21m

Washington, D.C. Reagan-National

Fri 2/6

12:00 pm-9:50 am

2 stops16h 50m

$1,047

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Fri 1/30

10:25 pm-7:45 pm

3 stops26h 20m

Washington, D.C. Reagan-National

Fri 2/6

6:59 am-7:40 pm

3 stops31h 41m

$1,104

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 1/29

10:30 am-7:45 pm

2 stops14h 15m

Washington, D.C. Reagan-National

Thu 2/5

9:40 am-10:00 pm

3 stops31h 20m

$1,243

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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.
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 Cardiff to District of Columbia

What is the cheapest month to book a flight from Cardiff to District of Columbia?

Currently, November is the cheapest month in which you can book a flight from Cardiff to District of Columbia (average of $687). Flying from Cardiff to District of Columbia in July is currently the most expensive (average of $1,078). 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.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to District of Columbia. 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 from for flights from Cardiff to District of Columbia?

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

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

    There are many flights that can get you from Cardiff to District of Columbia in 18h 21m. Fly via KLM or Delta to get the fastest option. The distance from Cardiff to District of Columbia is about 3535 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from Cardiff to District of Columbia?

    Currently, November is the cheapest month in which you can book a flight from Cardiff to District of Columbia (average of $687). Flying from Cardiff to District of Columbia in July is currently the most expensive (average of $1,078). 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

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