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.
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 |
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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.
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.
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
Fly to
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
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
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
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
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
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
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
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
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
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.
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
Food
Overall
Comfort
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Overall
Comfort
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Overall
Comfort
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
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.
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Alternative routes for 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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