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

Return flights

09 Apr - 19 Apr	Oman Air
17 Apr - 25 Apr	Oman Air
07 Apr - 10 Apr	Oman Air
19 Apr - 25 Apr	Oman Air
01 Apr - 05 Apr	Oman Air
12 Apr - 21 Apr	Etihad Airways
13 Apr - 21 Apr	Etihad Airways
14 Apr - 22 Apr	Etihad Airways
04 Apr - 26 Apr	Singapore Airlines
11 Apr - 21 Apr	IndiGo

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 $597

Return flights