Cheapest return flights from London to Klagenfurt in September from 37€

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

Return flights

25 Sep - 02 Oct Ryanair direct
25 Sep - 12 Oct Ryanair direct
21 Sep - 02 Oct Ryanair direct
25 Sep - 28 Sep Ryanair direct
21 Sep - 25 Sep Ryanair direct
28 Sep - 02 Oct Ryanair direct
28 Sep - 12 Oct Ryanair direct
11 Sep - 25 Sep Ryanair direct
25 Sep - 05 Oct Ryanair direct
18 Sep - 02 Oct Ryanair direct
14 Sep - 02 Oct Ryanair direct
07 Sep - 11 Sep Ryanair direct
07 Sep - 25 Sep Ryanair direct
18 Sep - 25 Sep Ryanair direct
28 Sep - 16 Oct Ryanair direct
14 Sep - 25 Sep Ryanair direct
25 Sep - 09 Oct Ryanair direct
11 Sep - 18 Sep Ryanair direct
04 Sep - 11 Sep Ryanair direct
07 Sep - 18 Sep Ryanair direct

Also check the deals for one-way flights from London to Klagenfurt in September.

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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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