AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Kathmandu (KTM) in December 2025 (see full year).

Return flights

30 Dec - 14 Jan	Frontier Airlines
02 Dec - 12 Dec	Spirit Airlines
30 Dec - 18 Jan	Frontier Airlines
09 Dec - 29 Jan	Frontier Airlines
29 Dec - 23 Jan	Spirit Airlines
02 Dec - 23 Jan	Spirit Airlines
03 Dec - 12 Dec	Korean Air
01 Dec - 23 Dec	Korean Air
04 Dec - 11 Dec	Korean Air
01 Dec - 09 Dec	Korean Air
10 Dec - 26 Dec	Frontier Airlines
01 Dec - 12 Jan	Qatar Airways
03 Dec - 24 Dec	Korean Air
11 Dec - 25 Dec	Spirit Airlines
06 Dec - 10 Dec	Iberia
25 Dec - 30 Jan	Frontier Airlines
07 Dec - 15 Dec	EVA Air
14 Dec - 30 Jan	Frontier Airlines
13 Dec - 30 Jan	Iberia
15 Dec - 13 Jan	Frontier Airlines

Also check the deals for one-way flights from Dallas-Fort Worth to Kathmandu in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Dallas-Fort Worth to Kathmandu in December from 1049€

Return flights