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

Return flights

11 Apr - 26 Apr	AirAsia
11 Apr - 17 Apr	AirAsia
09 Apr - 19 Apr	AirAsia
09 Apr - 20 Apr	AirAsia
11 Apr - 20 Apr	AirAsia
12 Apr - 17 Apr	AirAsia
04 Apr - 17 Apr	AirAsia
09 Apr - 17 Apr	AirAsia
14 Apr - 19 Apr	Gulf Air
06 Apr - 20 Apr	Gulf Air
27 Apr - 04 May	Gulf Air
20 Apr - 02 May	Gulf Air
25 Apr - 01 May	Air Arabia
26 Apr - 03 May	IndiGo
27 Apr - 04 May	Thai Airways	direct
20 Apr - 02 May	Thai Airways	direct

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

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 April from 400€

Return flights