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

Return flights

16 Sep - 23 Sep	easyJet	direct
25 Sep - 30 Sep	easyJet	direct
25 Sep - 27 Sep	easyJet	direct
16 Sep - 20 Sep	easyJet	direct
30 Sep - 04 Oct	easyJet	direct
11 Sep - 13 Sep	easyJet	direct
09 Sep - 13 Sep	easyJet	direct
09 Sep - 11 Sep	easyJet	direct
27 Sep - 30 Sep	Austrian Airlines
27 Sep - 30 Sep	easyJet	direct
16 Sep - 19 Sep	easyJet
28 Sep - 05 Oct	Austrian Airlines
30 Sep - 05 Oct	Austrian Airlines
29 Sep - 03 Oct	Austrian Airlines

Also check the deals for one-way flights from Innsbruck 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 Innsbruck to London in September from 135€

Return flights