AirHint found the following cheapest one-way flights from Athens (ATH) to Istanbul (IST) in January 2026 (see full year).

One-Way flights

16 Jan	SKY express	direct
14 Jan	SKY express	direct
30 Jan	SKY express	direct
28 Jan	SKY express	direct
26 Jan	SKY express	direct
29 Jan	SKY express	direct
10 Jan	SKY express	direct
12 Jan	SKY express	direct
23 Jan	SKY express	direct
22 Jan	SKY express	direct

Also check the deals for return flights from Athens to Istanbul in January.

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 one-way flights from Athens to Istanbul in January from 33€

One-Way flights