Cheapest return flights from Houston to Istanbul in September from 617€

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

Return flights

30 Sep - 30 Oct Spirit Airlines
22 Sep - 07 Oct Spirit Airlines
21 Sep - 14 Oct Spirit Airlines
30 Sep - 30 Oct Turkish Airlines direct
22 Sep - 07 Oct Turkish Airlines direct
23 Sep - 20 Oct Spirit Airlines
21 Sep - 28 Sep Spirit Airlines
17 Sep - 21 Sep Spirit Airlines
23 Sep - 20 Oct Turkish Airlines direct
29 Sep - 09 Oct Air France
21 Sep - 28 Sep Turkish Airlines direct
21 Sep - 14 Oct Turkish Airlines direct
20 Sep - 27 Sep Frontier Airlines
17 Sep - 19 Sep Spirit Airlines
19 Sep - 11 Oct Frontier Airlines
17 Sep - 21 Sep Turkish Airlines direct
20 Sep - 27 Sep Turkish Airlines direct
17 Sep - 19 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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

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