Cheapest return flights from London to Kos in September from 166€

Best time to book flights for London (LON) to Kos (KGS) flights at AirHint

AirHint found the following cheapest return flights from London (LON) to Kos (KGS) in September 2025 (see full year).

Return flights

29 Sep - 14 Oct Ryanair
23 Sep - 29 Sep Ryanair
15 Sep - 22 Sep Ryanair
17 Sep - 22 Sep Ryanair
30 Sep - 06 Oct Ryanair
24 Sep - 03 Oct Vueling Airlines
30 Sep - 07 Oct Wizz Air Malta
21 Sep - 28 Sep easyJet
10 Sep - 17 Sep Lufthansa
29 Sep - 05 Oct Ryanair
30 Sep - 11 Oct Wizz Air Malta
09 Sep - 16 Sep Ryanair
05 Sep - 10 Sep Brussels Airlines
01 Sep - 10 Sep Ryanair
11 Sep - 18 Sep Vueling Airlines
22 Sep - 10 Oct Ryanair
22 Sep - 06 Oct Ryanair
22 Sep - 07 Oct Ryanair
22 Sep - 11 Oct Ryanair
23 Sep - 29 Sep Jet2 direct

Also check the deals for one-way flights from London to Kos 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.

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