Cheap flights from Washington, D.C. Dulles Intl Airport to Cardiff from £612
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Dulles Intl to Cardiff
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Cardiff (CWL). 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 24 April 2025.
Round-trip from | £612 |
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Find flight deals from Dulles Intl to Cardiff
Cheapest flights from Dulles Intl to CardiffExplore the most affordable flight options available from Dulles Intl to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2025.
Explore the most affordable flight options available from Dulles Intl to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Dulles Intl to Cardiff 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 24 April 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cardiff that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Wed 3/9
17:25-16:45
1 stop18h 20m
Cardiff Wales
Tue 16/9
09:50-15:35
1 stop10h 45m
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Tue 23/9
17:25-16:45
1 stop18h 20m
Cardiff Wales
Mon 29/9
09:50-15:35
1 stop10h 45m
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Wed 3/9
12:30-09:15
2 stops15h 45m
Cardiff Wales
Tue 16/9
09:50-15:35
1 stop10h 45m
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Sat 7/6
12:40-16:45
3 stops47h 05m
Cardiff Wales
Sat 14/6
09:00-11:29
3 stops31h 29m
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Thu 18/9
22:40-11:30
2 stops31h 50m
Cardiff Wales
Tue 30/9
12:00-20:15
2 stops37h 15m
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Thu 25/9
21:20-16:45
2 stops14h 25m
Cardiff Wales
Sun 28/9
09:50-19:15
2 stops14h 25m
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Mon 16/6
17:40-11:30
2 stops12h 50m
Best time to book a flight from Dulles Intl to Cardiff
Have a flexible travel schedule? Discover the best time to fly to Cardiff from Dulles Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Cardiff
Rainfall in Cardiff by month
Plan your trip to Cardiff by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.
Temperature in Cardiff by month
Plan your trip to Cardiff by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Cardiff, 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 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).
Reviews of airlines servicing Cardiff
Get insights into the airlines that provide service to Cardiff. 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 Cardiff. Reviews last updated 24 April 2025.
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Washington, D.C. Dulles Intl Airport?
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Alternative routes for Dulles Intl to Cardiff
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