Cheapest return flights from Houston to Istanbul in September from $883

Best time to book flights for Houston (IAH) to Istanbul (IST) flights at AirHint

AirHint found the following cheapest return flights from Houston (IAH) to Istanbul (IST) in September 2025 (see full year).

Return flights

11 Sep - 25 Sep Turkish Airlines direct
29 Sep - 07 Oct Turkish Airlines direct
04 Sep - 15 Sep Qatar Airways
08 Sep - 22 Sep Qatar Airways
05 Sep - 12 Sep Turkish Airlines direct
04 Sep - 15 Sep Turkish Airlines direct
08 Sep - 22 Sep Turkish Airlines direct

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

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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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