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District of Columbia

$856+ 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — IAD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Cardiff to District of Columbia

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 January 29, 2026.

This Expedia deal was found by Cheapflights users on 1/27. 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.
Fri 3/1310:20 am
CWL
-
DCA
2 stops16h 16m
Multiple Airlines
Fri 3/205:09 pm
DCA
-
CWL
2 stops12h 41m
Multiple Airlines
Deal found 1/27$856
This TravelUp deal was found by Cheapflights users on 1/27. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/138:35 am
CWL
-
IAD
2 stops16h 20m
British Airways
Fri 3/207:20 pm
IAD
-
CWL
2 stops36h 10m
British Airways
Deal found 1/27$877
This Expedia deal was found by Cheapflights users on 1/27. 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.
Fri 3/135:15 pm
CWL
-
IAD
1 stop27h 50m
Multiple Airlines
Fri 3/207:29 pm
IAD
-
CWL
2 stops34h 21m
Multiple Airlines
Deal found 1/27$913
This Expedia deal was found by Cheapflights users on 1/27. 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.
Fri 3/135:15 pm
CWL
-
IAD
1 stop27h 50m
KLM
Fri 3/207:05 pm
IAD
-
CWL
1 stop10h 45m
KLM
Deal found 1/27$965

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 January 29, 2026.

Round-trip from

$856
(Expedia)
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 January 29, 2026.
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 - DCA

CWLDCA

Cardiff Wales

Fri 3/13

10:20 am-10:36 pm

2 stops16h 16m

Washington, D.C. Reagan-National

Fri 3/20

5:09 pm-9:50 am

2 stops12h 41m

$856

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 3/13

8:35 am-8:55 pm

2 stops16h 20m

Washington, D.C. Dulles Intl

Fri 3/20

7:20 pm-11:30 am

2 stops36h 10m

$877

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 3/13

5:15 pm-5:05 pm

1 stop27h 50m

Washington, D.C. Dulles Intl

Fri 3/20

7:29 pm-9:50 am

2 stops34h 21m

$913

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 3/13

5:15 pm-5:05 pm

1 stop27h 50m

Washington, D.C. Dulles Intl

Fri 3/20

7:05 pm-9:50 am

1 stop10h 45m

$965

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 $1,082). 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 16h 20m. Fly via British Airways or KLM to get the fastest option. The distance from Cardiff to District of Columbia is about 3548 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 $1,082). 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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