AirHint found the following cheapest return flights from Prestwick (PIK) to London (LTN) in September 2025 (see full year).

Return flights

24 Sep - 01 Oct	Ryanair
13 Sep - 18 Sep	Ryanair
23 Sep - 02 Oct	Ryanair
13 Sep - 20 Sep	Ryanair
03 Sep - 04 Sep	Ryanair
16 Sep - 19 Sep	Ryanair
09 Sep - 24 Sep	Ryanair
22 Sep - 24 Sep	Ryanair
24 Sep - 29 Sep	Ryanair
30 Sep - 07 Oct	Ryanair
23 Sep - 25 Sep	Ryanair
27 Sep - 04 Oct	Ryanair
04 Sep - 08 Sep	Ryanair
14 Sep - 28 Sep	Ryanair

Also check the deals for one-way flights from Prestwick to London 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 Prestwick to London in September from 169€

Return flights