Cheapest return flights from Washington to Kathmandu in December from $1567

AirHint found the following cheapest return flights from Washington (DCA) to Kathmandu (KTM) in December 2025 (see full year).

Return flights

30 Dec - 14 Jan Cathay Pacific
02 Dec - 16 Dec Qatar Airways
08 Dec - 23 Dec Cathay Pacific
10 Dec - 18 Jan Qatar Airways
12 Dec - 08 Jan Frontier Airlines
05 Dec - 10 Jan Qatar Airways
27 Dec - 13 Jan Cathay Pacific
07 Dec - 29 Dec Cathay Pacific
10 Dec - 11 Jan Cathay Pacific
24 Dec - 10 Jan Cathay Pacific
14 Dec - 08 Jan Cathay Pacific
17 Dec - 22 Jan Cathay Pacific
19 Dec - 20 Jan Cathay Pacific

Also check the deals for one-way flights from Washington to Kathmandu in December.

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