Cheapest return flights from Frankfurt to Istanbul in August from $198

Best time to book flights for Frankfurt (FRA) to Istanbul (IST) flights at AirHint

AirHint found the following cheapest return flights from Frankfurt (FRA) to Istanbul (IST) in August 2025 (see full year).

Return flights

25 Aug - 11 Sep AJet
30 Aug - 20 Sep AJet direct
15 Aug - 23 Sep AJet direct
26 Aug - 15 Sep Air Serbia
26 Aug - 15 Sep Pegasus Airlines direct
28 Aug - 13 Sep Pegasus Airlines
23 Aug - 08 Sep AJet direct
30 Aug - 13 Sep AJet
23 Aug - 13 Sep AJet
29 Aug - 09 Sep AJet direct
27 Aug - 31 Aug Pegasus Airlines
28 Aug - 31 Aug Pegasus Airlines
30 Aug - 31 Aug AJet
29 Aug - 31 Aug AJet
21 Aug - 25 Aug Pegasus Airlines
21 Aug - 24 Aug Pegasus Airlines
23 Aug - 30 Aug AJet
22 Aug - 24 Aug Pegasus Airlines
22 Aug - 25 Aug Pegasus Airlines
18 Aug - 28 Aug Pegasus Airlines

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

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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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