Cheapest return flights from Klagenfurt to London in September from 49€

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

Return flights

25 Sep - 09 Oct Ryanair direct
25 Sep - 05 Oct Ryanair direct
11 Sep - 23 Oct Ryanair direct
25 Sep - 02 Oct Ryanair direct
25 Sep - 16 Oct Ryanair direct
18 Sep - 09 Oct Ryanair direct
11 Sep - 25 Sep Ryanair direct
28 Sep - 09 Oct Ryanair direct
11 Sep - 14 Sep Ryanair direct
18 Sep - 05 Oct Ryanair direct
04 Sep - 11 Sep Ryanair direct
04 Sep - 25 Sep Ryanair direct
11 Sep - 02 Oct Ryanair direct
18 Sep - 25 Sep Ryanair direct
28 Sep - 05 Oct Ryanair direct
04 Sep - 14 Sep Ryanair direct
11 Sep - 21 Sep Ryanair direct
04 Sep - 21 Sep Ryanair direct
18 Sep - 21 Sep Ryanair direct
04 Sep - 18 Sep Ryanair direct

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

Skyscanner

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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.