Cheapest return flights from Houston to Istanbul in September from $667

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

Return flights

20 Sep - 29 Sep Spirit Airlines
28 Sep - 15 Oct Spirit Airlines
29 Sep - 07 Oct Turkish Airlines direct
24 Sep - 08 Oct Turkish Airlines direct
16 Sep - 07 Oct Turkish Airlines direct
15 Sep - 08 Oct Turkish Airlines direct
30 Sep - 04 Oct Spirit Airlines
22 Sep - 10 Oct Spirit Airlines
21 Sep - 30 Sep Spirit Airlines
21 Sep - 29 Sep Frontier Airlines
28 Sep - 15 Oct Turkish Airlines direct
26 Sep - 02 Oct Turkish Airlines direct
17 Sep - 06 Oct Turkish Airlines direct
07 Sep - 20 Sep Spirit Airlines
08 Sep - 15 Sep Spirit Airlines
18 Sep - 22 Sep Turkish Airlines direct
21 Sep - 29 Sep Turkish Airlines direct
05 Sep - 12 Sep Turkish Airlines direct
08 Sep - 17 Sep Spirit Airlines
07 Sep - 14 Sep Spirit Airlines

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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