Cheapest return flights from Houston to Istanbul in September from 586€

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

Return flights

30 Sep - 03 Oct Frontier Airlines
24 Sep - 22 Oct Spirit Airlines
23 Sep - 30 Sep Frontier Airlines
29 Sep - 04 Oct Frontier Airlines
24 Sep - 22 Oct Turkish Airlines direct
26 Sep - 24 Oct Turkish Airlines direct
22 Sep - 07 Oct Turkish Airlines direct
24 Sep - 27 Sep Spirit Airlines
27 Sep - 18 Oct Frontier Airlines
24 Sep - 18 Oct Spirit Airlines
19 Sep - 14 Oct Turkish Airlines direct
20 Sep - 11 Oct Spirit Airlines
23 Sep - 30 Sep Turkish Airlines direct
24 Sep - 27 Sep Turkish Airlines direct

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

Skyscanner

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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