AirHint found the following cheapest return flights from Delhi (DEL) to Istanbul (IST) in December 2025 (see full year).

Return flights

08 Dec - 13 Dec	IndiGo
07 Dec - 13 Dec	IndiGo
01 Dec - 15 Jan	IndiGo
04 Dec - 09 Dec	Kuwait Airways
15 Dec - 15 Jan	IndiGo
11 Dec - 20 Jan	IndiGo
15 Dec - 25 Dec	IndiGo
08 Dec - 14 Dec	Kuwait Airways
03 Dec - 10 Dec	Kuwait Airways
03 Dec - 07 Dec	Kuwait Airways
03 Dec - 08 Dec	Kuwait Airways
05 Dec - 10 Dec	IndiGo
08 Dec - 16 Dec	Kuwait Airways
20 Dec - 01 Jan	AZAL
30 Dec - 06 Jan	Gulf Air
24 Dec - 02 Jan	Gulf Air
30 Dec - 03 Jan	Gulf Air
26 Dec - 02 Jan	Air Astana
19 Dec - 05 Jan	IndiGo
26 Dec - 04 Jan	Kuwait Airways

Also check the deals for one-way flights from Delhi to Istanbul in December.

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Cheapest return flights from Delhi to Istanbul in December from 271€

Return flights