AirHint found the following cheapest return flights from Houston (HOU) to Karachi (KHI) in December 2025 (see full year).

Return flights

30 Dec - 22 Jan	Frontier Airlines
27 Dec - 29 Jan	Turkish Airlines
29 Dec - 26 Jan	Frontier Airlines
31 Dec - 15 Jan	Frontier Airlines
09 Dec - 16 Dec	Frontier Airlines
05 Dec - 25 Dec	Spirit Airlines
07 Dec - 14 Dec	Spirit Airlines
29 Dec - 22 Jan	Emirates
03 Dec - 10 Dec	Spirit Airlines
08 Dec - 16 Dec	Frontier Airlines
04 Dec - 11 Dec	Spirit Airlines
08 Dec - 29 Dec	Frontier Airlines
08 Dec - 24 Dec	Spirit Airlines
05 Dec - 12 Dec	Spirit Airlines
23 Dec - 13 Jan	Frontier Airlines
02 Dec - 09 Dec	Emirates
26 Dec - 17 Jan	Turkish Airlines
31 Dec - 07 Jan	Frontier Airlines
25 Dec - 21 Jan	Spirit Airlines
30 Dec - 06 Jan	Turkish Airlines

Also check the deals for one-way flights from Houston to Karachi 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 Houston to Karachi in December from 928€

Return flights