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

Return flights

23 Apr - 01 May	Vietnam Airlines
01 Apr - 30 Apr	Etihad Airways
06 Apr - 16 Apr	Etihad Airways
04 Apr - 16 Apr	Etihad Airways
30 Apr - 10 May	Oman Air
02 Apr - 15 Apr	Qatar Airways
04 Apr - 14 Apr	Etihad Airways
03 Apr - 13 Apr	Etihad Airways
12 Apr - 20 Apr	Etihad Airways
11 Apr - 17 Apr	Singapore Airlines
11 Apr - 19 Apr	Singapore Airlines
04 Apr - 12 Apr	Singapore Airlines
30 Apr - 10 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 512€

Return flights