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

Return flights

10 May - 14 May	Thai Lion Air
28 May - 06 Jun	Thai Lion Air
10 May - 31 May	Thai Lion Air
03 May - 10 May	AirAsia
01 May - 07 May	Thai Lion Air
28 May - 18 Jun	Thai Lion Air
09 May - 24 May	AirAsia
09 May - 17 May	AirAsia
07 May - 11 Jun	Thai AirAsia X
12 May - 18 May	AirAsia
06 May - 10 May	Thai Lion Air
09 May - 16 May	AirAsia
28 May - 28 Jun	AirAsia
24 May - 31 May	Thai Lion Air
01 May - 01 Jun	Thai AirAsia X
27 May - 28 Jun	Thai AirAsia
25 May - 01 Jun	AirAsia

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 $498

Return flights