AirHint found the following cheapest return flights from Frankfurt (FRA) to Istanbul (IST) in July 2026 (see full year).

Return flights

04 Jul - 12 Jul	Air Serbia
08 Jul - 20 Jul	Air Serbia
09 Jul - 24 Jul	Air Serbia
18 Jul - 23 Jul	Air Serbia
23 Jul - 30 Jul	Air Serbia
08 Jul - 15 Jul	Air Serbia
31 Jul - 03 Aug	Air Serbia
04 Jul - 18 Jul	Air Serbia
27 Jul - 31 Jul	Air Serbia
17 Jul - 06 Aug	Air Serbia
31 Jul - 21 Aug	Air Serbia
17 Jul - 31 Jul	Air Serbia
16 Jul - 09 Aug	Air Serbia
31 Jul - 15 Aug	Air Serbia
18 Jul - 07 Aug	Air Serbia
19 Jul - 26 Jul	Air Serbia
31 Jul - 22 Aug	Air Serbia
31 Jul - 13 Aug	Fly One
27 Jul - 13 Aug	Fly One
24 Jul - 13 Aug	Fly One

Also check the deals for one-way flights from Frankfurt to Istanbul in July.

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 Frankfurt to Istanbul in July from 163€

Return flights