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

Return flights

28 Aug - 11 Sep	Kenya Airways
30 Aug - 12 Sep	Kenya Airways
20 Aug - 03 Sep	Kenya Airways
29 Aug - 05 Sep	Kenya Airways
13 Aug - 05 Sep	Kenya Airways
18 Aug - 11 Sep	Kenya Airways
30 Aug - 13 Sep	IndiGo
18 Aug - 09 Sep	Qatar Airways
10 Aug - 17 Aug	IndiGo
11 Aug - 17 Aug	IndiGo
08 Aug - 16 Aug	IndiGo
21 Aug - 26 Aug	IndiGo
05 Aug - 14 Aug	IndiGo
14 Aug - 24 Aug	IndiGo
17 Aug - 04 Sep	IndiGo
16 Aug - 23 Aug	IndiGo
01 Aug - 05 Aug	IndiGo
23 Aug - 30 Aug	IndiGo
01 Aug - 03 Aug	IndiGo
22 Aug - 01 Sep	Etihad Airways

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

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 August from $895

Return flights