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

Return flights

01 Dec - 17 Dec	Turkish Airlines
01 Dec - 01 Jan	Qatar Airways
05 Dec - 10 Jan	Turkish Airlines
15 Dec - 15 Jan	Emirates
15 Dec - 16 Jan	Emirates
15 Dec - 17 Jan	Emirates
15 Dec - 18 Jan	Emirates
22 Dec - 13 Jan	Turkish Airlines
16 Dec - 15 Jan	Turkish Airlines
17 Dec - 15 Jan	Turkish Airlines
22 Dec - 12 Jan	Emirates

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 825€

Return flights