AirHint found the following cheapest return flights from Bangkok (BKK) to Istanbul (IST) in May 2026 (see full year).

Return flights

29 May - 08 Jun	Etihad Airways
12 May - 21 May	Oman Air
30 May - 10 Jun	Qatar Airways
01 May - 15 May	Etihad Airways
31 May - 07 Jun	Etihad Airways
30 May - 10 Jun	Thai Airways	direct
01 May - 15 May	Thai Airways	direct
12 May - 21 May	Thai Airways	direct
31 May - 07 Jun	Thai Airways	direct
04 May - 25 May	China Southern
16 May - 20 May	China Southern

Also check the deals for one-way flights from Bangkok to Istanbul in May.

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 May from 531€

Return flights