Cheapest return flights from Houston to Istanbul in September from $604

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

Return flights

04 Sep - 11 Sep Spirit Airlines
15 Sep - 29 Sep Spirit Airlines
06 Sep - 13 Sep Spirit Airlines
15 Sep - 22 Sep Spirit Airlines
12 Sep - 26 Sep Spirit Airlines
18 Sep - 15 Oct Spirit Airlines
09 Sep - 24 Sep Spirit Airlines
13 Sep - 03 Oct Spirit Airlines
24 Sep - 07 Oct Spirit Airlines
04 Sep - 16 Sep Spirit Airlines
27 Sep - 16 Oct Spirit Airlines
23 Sep - 03 Oct Spirit Airlines
19 Sep - 27 Sep Spirit Airlines
05 Sep - 14 Sep Spirit Airlines
23 Sep - 03 Oct Turkish Airlines direct
27 Sep - 14 Oct Spirit Airlines
30 Sep - 11 Oct Spirit Airlines
04 Sep - 16 Sep Turkish Airlines direct
18 Sep - 15 Oct Turkish Airlines direct
13 Sep - 03 Oct 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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Feel free to contact us with any feedback or request another flight research.