
Keep the following information in mind while searching for Washington, D.C. to Wales flight deals. Data was last updated October 30, 2026.
Round-trip from | $1,057 (Kiwi.com) |
|---|---|
One-way from | $424 (Kiwi.com) |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Cardiff
IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales
IADCWL
Washington, D.C. Dulles Intl
Fri 4/9
8:30 pm-3:15 pm
2 stops13h 45m
Cardiff Wales
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
Washington, D.C.Cardiff
IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales
IADCWL
Washington, D.C. Dulles Intl
Sun 11/29
5:15 pm-8:10 am
1 stop9h 55m
Cardiff Wales
Mon 12/14
8:35 am-2:40 pm
2 stops35h 05m
Washington, D.C.Cardiff
IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales
IADCWL
Washington, D.C. Dulles Intl
Sun 12/13
5:15 pm-8:10 am
1 stop9h 55m
Cardiff Wales
Sun 12/20
2:25 pm-3:45 pm
1 stop30h 20m
Washington, D.C.Cardiff
IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales
IADCWL
Washington, D.C. Dulles Intl
Fri 3/19
6:15 pm-7:50 am
1 stop9h 35m
Cardiff Wales
Sat 3/27
11:50 pm-3:10 pm
2 stops19h 20m
Washington, D.C.Cardiff
IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales
IADCWL
Washington, D.C. Dulles Intl
Sat 12/12
8:50 pm-8:10 am
1 stop30h 20m
Cardiff Wales
Sat 12/19
8:15 am-3:45 pm
1 stop12h 30m
Washington, D.C.Cardiff
IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales
IADCWL
Washington, D.C. Dulles Intl
Sun 11/29
12:35 pm-9:50 am
2 stops16h 15m
Cardiff Wales
Mon 12/14
10:20 am-11:23 pm
2 stops42h 03m
Everything you need to know about your flight from Washington, D.C. to Wales
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