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Cheap flights from Cardiff to Washington, D.C. from £682

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/8. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — WAS
7 7月 — 14 7月1
1 adult

Cheap flight deals from Cardiff to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 7月 2025.

Round-trip from

£682
14/8-21/8
  • 14/8-21/8
  • 4 total stops
  • 31h 40m total
  • Cardiff to Washington, D.C.

Find flight deals from Cardiff to Washington, D.C.

Cheapest flights from Cardiff to Washington, D.C.
Explore the most affordable flight options available from Cardiff to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 7月 2025.

週四 14/807:55CWL - BWI
2 stops14h 45mMultiple Airlines
週四 21/818:50BWI - CWL
2 stops16h 55mMultiple Airlines
Deal found 30/6£682
週六 16/809:00CWL - IAD
1 stop11h 50mMultiple Airlines
週六 23/817:20IAD - CWL
1 stop12h 15mMultiple Airlines
Deal found 2/7£768
週二 29/717:15CWL - IAD
1 stop27h 20mKLM
週二 5/817:25IAD - CWL
1 stop10h 50mKLM
Deal found 30/6£859
週二 29/709:50CWL - IAD
2 stops15h 01mDelta
週二 5/812:45IAD - CWL
2 stops15h 30mDelta
Deal found 30/6£864
週二 29/709:50CWL - DCA
2 stops17h 32mDelta
週二 5/812:29DCA - CWL
2 stops15h 46mDelta
Deal found 30/6£864
週五 15/809:50CWL - BWI
2 stops18h 27mDelta
週五 22/813:06BWI - CWL
2 stops15h 09mDelta
Deal found 1/7£1,008
週二 29/709:50CWL - BWI
2 stops15h 58mKLM
週二 5/813:52BWI - CWL
2 stops14h 23mKLM
Deal found 30/6£1,014
週五 15/809:00CWL - DCA
3 stops38h 02mMultiple Airlines
週五 22/816:45DCA - CWL
2 stops19h 20mMultiple Airlines
Deal found 1/7£1,213
週五 15/809:50CWL - DCA
3 stops19h 03mKLM
週五 22/812:15DCA - CWL
3 stops23h 50mKLM
Deal found 1/7£1,254

Cheapflights Fare Finder

Customise your flight search to find flights from Cardiff to Washington, D.C. 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 858,174 searches. Data last updated 2 7月 2025.
Use the filters below to find and compare flights from Cardiff to Washington, D.C. that are best for you.

Fly from

Cardiff

Fly to

Washington, D.C.

Route

Depart

Return

Price

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

週四 14/8

07:55-17:40

2 stops14h 45m

Baltimore/Washington

週四 21/8

18:50-16:45

2 stops16h 55m

£682

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

週六 16/8

09:00-15:50

1 stop11h 50m

Washington, D.C. Dulles Intl

週六 23/8

17:20-10:35

1 stop12h 15m

£768

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

週二 29/7

17:15-15:35

1 stop27h 20m

Washington, D.C. Dulles Intl

週二 5/8

17:25-09:15

1 stop10h 50m

£859

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

週二 29/7

09:50-19:51

2 stops15h 01m

Washington, D.C. Dulles Intl

週二 5/8

12:45-09:15

2 stops15h 30m

£864

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

週二 29/7

09:50-22:22

2 stops17h 32m

Washington, D.C. Reagan-National

週二 5/8

12:29-09:15

2 stops15h 46m

£864

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

週五 15/8

09:50-23:17

2 stops18h 27m

Baltimore/Washington

週五 22/8

13:06-09:15

2 stops15h 09m

£1,008

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

週二 29/7

09:50-20:48

2 stops15h 58m

Baltimore/Washington

週二 5/8

13:52-09:15

2 stops14h 23m

£1,014

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

週五 15/8

09:00-18:02

3 stops38h 02m

Washington, D.C. Reagan-National

週五 22/8

16:45-17:05

2 stops19h 20m

£1,213

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

週五 15/8

09:50-23:53

3 stops19h 03m

Washington, D.C. Reagan-National

週五 22/8

12:15-17:05

3 stops23h 50m

£1,254

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Best time to book a flight from Cardiff to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Cardiff with our price prediction graph.
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 Washington, D.C.

What is the cheapest month to book a flight from Cardiff to Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from Cardiff to Washington, D.C. (average of £599). Flying from Cardiff to Washington, D.C. in July is currently the most expensive (average of £947). 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.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 2 7月 2025.
Get a feel of what it's like to fly with Delta and KLM from Cardiff to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Washington, D.C.. 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 Washington, D.C.?

    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 Washington, D.C.. 0 airlines have flights from Cardiff Wales to Washington, D.C. on a regular basis. Booking flights from Cardiff Wales to Washington, D.C. should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. per day.

  • What are the most popular routes from Cardiff to Washington, D.C.?

  • Can I find deals for flights from Cardiff to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Cardiff to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Washington, D.C.?

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

  • Can I find deals for business class flights from Cardiff to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Cardiff to Washington, D.C. 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 Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from Cardiff to Washington, D.C. (average of £599). Flying from Cardiff to Washington, D.C. in July is currently the most expensive (average of £947). 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

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Arlington
Woodbridge
College Park
Laurel
Tysons

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Alternative routes for Cardiff to Washington, D.C.

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Why should you use Cheapflights to find cheap flight tickets from Cardiff to Washington, D.C.?

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Can Cheapflights find flights from Cardiff to Washington, D.C. with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Cardiff to Washington, D.C. flexibly with Cheapflights today.

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