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

Return flights

30 Aug - 21 Sep	Kenya Airways
25 Aug - 11 Sep	Kenya Airways
31 Aug - 03 Sep	Kenya Airways
20 Aug - 05 Sep	Kenya Airways
27 Aug - 03 Sep	Kenya Airways
31 Aug - 05 Sep	Kenya Airways
22 Aug - 03 Sep	Kenya Airways
26 Aug - 06 Sep	IndiGo
07 Aug - 17 Aug	IndiGo
10 Aug - 17 Aug	IndiGo
11 Aug - 19 Aug	IndiGo
12 Aug - 23 Aug	IndiGo
26 Aug - 02 Sep	British Airways
14 Aug - 21 Aug	IndiGo
05 Aug - 23 Aug	IndiGo
15 Aug - 26 Aug	IndiGo
04 Aug - 14 Aug	IndiGo
20 Aug - 27 Aug	Kenya Airways
21 Aug - 28 Aug	Kenya Airways
23 Aug - 03 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 $863

Return flights