AirHint found the following cheapest return flights from Bangkok (BKK) to Istanbul (IST) in October 2025 (see full year).

Return flights

01 Oct - 08 Oct	Air Arabia
03 Oct - 07 Oct	Air Arabia
23 Oct - 10 Nov	China Southern
17 Oct - 23 Oct	IndiGo
11 Oct - 24 Oct	Air Arabia
19 Oct - 26 Oct	AirAsia
31 Oct - 07 Nov	Air Arabia
01 Oct - 11 Oct	Air Arabia
23 Oct - 29 Oct	Air Arabia
06 Oct - 14 Oct	Air Arabia
06 Oct - 09 Oct	Air Arabia
27 Oct - 03 Nov	Air Arabia
07 Oct - 13 Oct	Air Arabia
29 Oct - 05 Nov	Air Arabia
12 Oct - 17 Nov	Air Arabia
24 Oct - 02 Nov	Air Arabia
19 Oct - 28 Nov	Oman Air
27 Oct - 03 Nov	Thai Airways	direct
29 Oct - 05 Nov	Thai Airways	direct
23 Oct - 07 Nov	China Southern

Also check the deals for one-way flights from Bangkok 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 Bangkok to Istanbul in October from 453€

Return flights