AirHint found the following cheapest return flights from London (STN) to Gibraltar (GIB) in September 2025 (see full year).

Return flights

28 Sep - 02 Oct	Ryanair
27 Sep - 02 Oct	Ryanair
13 Sep - 18 Sep	Ryanair
23 Sep - 25 Sep	Ryanair
20 Sep - 28 Sep	Ryanair
16 Sep - 18 Sep	Ryanair
25 Sep - 02 Oct	Ryanair
18 Sep - 25 Sep	Ryanair
17 Sep - 21 Sep	Ryanair
10 Sep - 14 Sep	Ryanair
07 Sep - 14 Sep	Ryanair
03 Sep - 14 Sep	Ryanair
06 Sep - 14 Sep	Ryanair

Also check the deals for one-way flights from London to Gibraltar 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 Gibraltar in September from 281€

Return flights