AirHint found the following cheapest return flights from Houston (IAH) to Istanbul (IST) in January 2026 (see full year).

Return flights

26 Jan - 31 Jan	Spirit Airlines
19 Jan - 02 Feb	Air France
16 Jan - 30 Jan	KLM
01 Jan - 10 Jan	Air France
16 Jan - 30 Jan	Turkish Airlines	direct
19 Jan - 02 Feb	Turkish Airlines	direct
02 Jan - 08 Jan	Air France
01 Jan - 10 Jan	Turkish Airlines	direct
02 Jan - 08 Jan	Turkish Airlines	direct
26 Jan - 31 Jan	Turkish Airlines	direct
02 Jan - 24 Jan	Spirit Airlines

Also check the deals for one-way flights from Houston to Istanbul in January.

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 Istanbul in January from 545€

Return flights