Cheapest return flights from Grenoble to Istanbul in January from $582

AirHint found the following cheapest return flights from Grenoble (GNB) to Istanbul (IST) in January 2026 (see full year).

Return flights

29 Jan - 01 Feb British Airways
22 Jan - 25 Jan British Airways
15 Jan - 18 Jan British Airways
10 Jan - 18 Jan British Airways
08 Jan - 11 Jan British Airways

Also check the deals for one-way flights from Grenoble to Istanbul in January.

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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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