Cheapest return flights from Frankfurt to Istanbul in May from $108

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

Return flights

08 May - 15 May Ryanair
06 May - 11 May Ryanair
06 May - 11 May Pegasus Airlines direct
12 May - 14 May Pegasus Airlines direct
06 May - 07 May Pegasus Airlines direct
08 May - 15 May Pegasus Airlines direct
07 May - 11 May Pegasus Airlines direct
07 May - 13 May Pegasus Airlines direct
18 May - 15 Jun Pegasus Airlines direct
21 May - 15 Jun Pegasus Airlines direct
08 May - 11 May Pegasus Airlines direct
04 May - 07 May Pegasus Airlines direct
15 May - 10 Jun Ryanair
18 May - 03 Jun Pegasus Airlines direct
21 May - 03 Jun Pegasus Airlines direct
25 May - 05 Jun Wizz Air Malta
15 May - 10 Jun Pegasus Airlines direct
29 May - 12 Jun Pegasus Airlines direct
20 May - 03 Jun Pegasus Airlines direct
29 May - 04 Jun Pegasus Airlines direct

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

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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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