AirHint found the following cheapest return flights from Florence (FLR) to Istanbul (IST)
in September 2025 (see full year ).
Return flights
26 Sep
- 29 Sep
ITA Airways
$ 275
17 Sep
- 20 Sep
ITA Airways
$ 277
17 Sep
- 25 Sep
Vueling Airlines
$ 385
17 Sep
- 01 Oct
Vueling Airlines
$ 386
17 Sep
- 29 Sep
Vueling Airlines
$ 396
29 Sep
- 18 Oct
Vueling Airlines
$ 405
17 Sep
- 22 Sep
Vueling Airlines
$ 407
26 Sep
- 01 Oct
Vueling Airlines
$ 416
29 Sep
- 01 Oct
Vueling Airlines
$ 422
29 Sep
- 19 Oct
Vueling Airlines
$ 440
17 Sep
- 08 Oct
Vueling Airlines
$ 441
26 Sep
- 08 Oct
Vueling Airlines
$ 465
29 Sep
- 08 Oct
Vueling Airlines
$ 471
21 Sep
- 25 Sep
Vueling Airlines
$ 526
21 Sep
- 01 Oct
Vueling Airlines
$ 528
21 Sep
- 29 Sep
Vueling Airlines
$ 537
21 Sep
- 22 Sep
Vueling Airlines
$ 548
21 Sep
- 08 Oct
Vueling Airlines
$ 577
Also check the deals for one-way flights from Florence to Istanbul in September .
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.