AirHint found the following cheapest return flights from London (LGW) to Mahe (SEZ) in September 2025 (see full year).

Return flights

16 Sep - 21 Sep	Ethiopian Airlines
14 Sep - 21 Sep	Ethiopian Airlines
22 Sep - 28 Sep	Ethiopian Airlines
12 Sep - 27 Sep	SunExpress
17 Sep - 27 Sep	easyJet
17 Sep - 22 Sep	Qatar Airways
23 Sep - 30 Sep	Qatar Airways
25 Sep - 09 Oct	Qatar Airways
22 Sep - 04 Oct	Ethiopian Airlines
17 Sep - 26 Sep	Qatar Airways
20 Sep - 27 Sep	Wizz Air UK
20 Sep - 28 Sep	Qatar Airways
27 Sep - 03 Oct	Qatar Airways
19 Sep - 03 Oct	Wizz Air
26 Sep - 02 Oct	Vueling Airlines
18 Sep - 16 Oct	Emirates

Also check the deals for one-way flights from London to Mahe 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.

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Cheapest return flights from London to Mahe in September from $841

Return flights