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

Return flights

04 May - 11 May	Oman Air
04 May - 10 May	Oman Air
01 May - 08 May	Oman Air
01 May - 10 May	Oman Air
05 May - 13 May	Oman Air
05 May - 11 May	Oman Air
04 May - 25 May	Qatar Airways
20 May - 30 May	Qatar Airways
21 May - 30 May	Qatar Airways
20 May - 11 Jun	Qatar Airways
14 May - 29 May	Qatar Airways
26 May - 05 Jun	Qatar Airways
01 May - 10 Jun	Qatar Airways
28 May - 07 Jun	Qatar Airways
20 May - 11 Jun	Thai Airways	direct
01 May - 10 Jun	Thai Airways	direct
26 May - 05 Jun	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul to Bangkok 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 Istanbul to Bangkok in May from $420

Return flights