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

Return flights

12 May - 19 May	Kuwait Airways
01 May - 06 May	Kuwait Airways
04 May - 11 May	Kuwait Airways
02 May - 12 May	Kuwait Airways
01 May - 01 Jun	Kuwait Airways
02 May - 12 May	Turkish Airlines	direct
01 May - 06 May	Turkish Airlines	direct
04 May - 11 May	Turkish Airlines	direct
01 May - 01 Jun	Turkish Airlines	direct

Also check the deals for one-way flights from Delhi 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 Delhi to Istanbul in May from 244€

Return flights