Cheapest one-way flights from Houston to Istanbul in September from 243€

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

One-Way flights

29 Sep Frontier Airlines
27 Sep Spirit Airlines
23 Sep Spirit Airlines
26 Sep Frontier Airlines
24 Sep Frontier Airlines
21 Sep Spirit Airlines
25 Sep Frontier Airlines
20 Sep Frontier Airlines
19 Sep Frontier Airlines
17 Sep Spirit Airlines

Also check the deals for return 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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