AirHint found the following cheapest return flights from London (LHR) to Sylhet Osmani (ZYL) in October 2025 (see full year).

Return flights

02 Oct - 17 Oct	Turkish Airlines
15 Oct - 12 Nov	LOT
28 Oct - 06 Nov	Turkish Airlines
09 Oct - 14 Nov	Turkish Airlines
12 Oct - 17 Oct	Turkish Airlines
15 Oct - 24 Oct	LOT
14 Oct - 26 Oct	Turkish Airlines
29 Oct - 17 Nov	Turkish Airlines
19 Oct - 16 Nov	LOT
05 Oct - 11 Oct	Turkish Airlines
12 Oct - 08 Nov	Turkish Airlines
10 Oct - 22 Oct	Turkish Airlines
01 Oct - 12 Oct	Turkish Airlines
14 Oct - 22 Oct	LOT
10 Oct - 18 Oct	Turkish Airlines
30 Oct - 08 Nov	Turkish Airlines
14 Oct - 17 Oct	Turkish Airlines
10 Oct - 16 Nov	Turkish Airlines
20 Oct - 20 Nov	LOT
12 Oct - 15 Nov	Turkish Airlines

Also check the deals for one-way flights from London to Sylhet Osmani in October.

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 London to Sylhet Osmani in October from 602€

Return flights