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

Return flights

13 Oct - 05 Nov	Frontier Airlines
14 Oct - 05 Nov	Frontier Airlines
01 Oct - 22 Oct	Spirit Airlines
18 Oct - 22 Oct	Frontier Airlines
19 Oct - 26 Oct	Frontier Airlines
13 Oct - 20 Oct	Frontier Airlines
03 Oct - 07 Oct	Frontier Airlines
24 Oct - 15 Nov	Spirit Airlines
08 Oct - 06 Nov	Spirit Airlines
07 Oct - 16 Oct	WestJet
31 Oct - 02 Nov	KLM
25 Oct - 27 Nov	Frontier Airlines
06 Oct - 01 Nov	Spirit Airlines
04 Oct - 12 Oct	Spirit Airlines
02 Oct - 12 Oct	Frontier Airlines
08 Oct - 15 Oct	KLM
11 Oct - 20 Oct	KLM
19 Oct - 02 Nov	KLM

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

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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Cheapest return flights from Houston to Istanbul in October from 569€

Return flights