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District of Columbia

$505+ Cheap flights from Cardiff (CWL) to District of Columbia

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BWI
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap 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 March 31, 2025.

Round-trip from

$842
(Delta)

One-way from

$505
(Kiwi.com)
From Cardiff Wales to District of Columbia
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One-way flight from Cardiff Wales to District of Columbia
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Find 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 March 31, 2025.

This Delta deal was found by Cheapflights users on 3/30. 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.
Sat 4/269:45 amCWL - IAD
1 stop10h 50mDelta
Sun 4/275:25 pmIAD - CWL
1 stop18h 20mDelta
Deal found 3/30$842
This KLM deal was found by Cheapflights users on 3/31. 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.
Sat 6/285:35 pmCWL - IAD
1 stop27h 00mKLM
Sat 7/195:25 pmIAD - CWL
1 stop18h 25mKLM
Deal found 3/31$997
This Delta deal was found by Cheapflights users on 3/31. 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.
Sat 6/289:45 amCWL - DCA
2 stops18h 48mDelta
Sat 7/191:30 pmDCA - CWL
2 stops14h 45mDelta
Deal found 3/31$1,080

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 March 31, 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

Sat 4/26

9:45 am-3:35 pm

1 stop10h 50m

Washington, D.C. Dulles Intl

Sun 4/27

5:25 pm-4:45 pm

1 stop18h 20m

$842

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sat 6/28

5:35 pm-3:35 pm

1 stop27h 00m

Washington, D.C. Dulles Intl

Sat 7/19

5:25 pm-4:50 pm

1 stop18h 25m

$997

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sat 6/28

9:45 am-11:33 pm

2 stops18h 48m

Washington, D.C. Reagan-National

Sat 7/19

1:30 pm-9:15 am

2 stops14h 45m

$1,080

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Sun 8/31

11:00 am-3:20 pm

2 stops33h 20m

$505

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Mon 9/1

9:50 am-7:37 pm

2 stops14h 47m

$1,586

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Mon 9/1

9:50 am-7:18 pm

2 stops14h 28m

$1,586

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Sun 8/31

9:50 am-6:40 pm

2 stops37h 50m

$1,587

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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, August is the cheapest month in which you can book a flight from Cardiff to District of Columbia (average of $241). Flying from Cardiff to District of Columbia in March is currently the most expensive (average of $290). 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.

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to District of Columbia. Reviews last updated March 31, 2025.
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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, August is the cheapest month in which you can book a flight from Cardiff to District of Columbia (average of $241). Flying from Cardiff to District of Columbia in March is currently the most expensive (average of $290). 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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