Cheapest return flights from Bangkok to Istanbul in September from $632

Best time to book flights for Bangkok (BKK) to Istanbul (IST) flights at AirHint

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

Return flights

23 Sep - 30 Sep Air Arabia
26 Sep - 07 Oct Air Arabia
09 Sep - 19 Sep Air Arabia
18 Sep - 25 Sep Air Arabia
23 Sep - 30 Sep Thai Airways direct
26 Sep - 07 Oct Thai Airways direct
18 Sep - 25 Sep Thai Airways direct
09 Sep - 19 Sep Thai Airways direct
01 Sep - 01 Sep Qatar Airways
01 Sep - 01 Sep Thai Airways direct
04 Sep - 29 Oct China Southern

Also check the deals for one-way flights from Bangkok 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