August is by far the best month, wherein you can get cheapest flights for Washington to Cardiff. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.
IAD
20:23
Washington
Washington Dulles International Airport
Sun , 17 Aug 2025
CWL
16:45
Cardiff
Cardiff International Airport
Mon, 18 Aug 2025
IAD
17:25
Washington
Washington Dulles International Airport
Sat , 16 Aug 2025
CWL
09:15
Cardiff
Cardiff International Airport
Sun, 17 Aug 2025
IAD
17:25
Washington
Washington Dulles International Airport
Sun , 17 Aug 2025
CWL
09:15
Cardiff
Cardiff International Airport
Mon, 18 Aug 2025
IAD
17:25
Washington
Washington Dulles International Airport
Sun , 17 Aug 2025
CWL
09:15
Cardiff
Cardiff International Airport
Mon, 18 Aug 2025
IAD
17:25
Washington
Washington Dulles International Airport
Sat , 16 Aug 2025
CWL
09:15
Cardiff
Cardiff International Airport
Sun, 17 Aug 2025
IAD
17:25
Washington
Washington Dulles International Airport
Sun , 17 Aug 2025
CWL
16:45
Cardiff
Cardiff International Airport
Mon, 18 Aug 2025
IAD
17:25
Washington
Washington Dulles International Airport
Sun , 17 Aug 2025
CWL
09:15
Cardiff
Cardiff International Airport
Mon, 18 Aug 2025
IAD
17:25
Washington
Washington Dulles International Airport
Sat , 16 Aug 2025
CWL
09:15
Cardiff
Cardiff International Airport
Sun, 17 Aug 2025
IAD
22:40
Washington
Washington Dulles International Airport
Sun , 17 Aug 2025
CWL
11:30
Cardiff
Cardiff International Airport
Tue, 19 Aug 2025
IAD
22:45
Washington
Washington Dulles International Airport
Sat , 16 Aug 2025
CWL
11:30
Cardiff
Cardiff International Airport
Mon, 18 Aug 2025
IAD
16:30
Washington
Washington Dulles International Airport
Sun , 17 Aug 2025
CWL
16:45
Cardiff
Cardiff International Airport
Tue, 19 Aug 2025
Flying from Washington to Cardiff has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between Washington to Cardiff is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Washington Dulles International Airport (IAD) and Cardiff International Airport (CWL). You can expect a flight distance of approximately 5714 km, and most direct services cover it in around 23:35.
Let’s take a closer look at everything you need to know before booking your flight from Washington to Cardiff.
Flight Details | Information |
---|---|
Route Distance | 5714 km |
Average Flight Time | 23:35 hrs |
Departure Airport | Washington Dulles International Airport (IAD) |
Arrival Airport | Cardiff International Airport (CWL) |
Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
Direct Flights | NO |
Common Airlines | Virgin Atlantic Airways, Delta Airlines, KLM Royal Dutch Airlines, Air France |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.