Cheapest return flights from London to Kos in September from $202

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

15 Sep - 22 Sep Ryanair
16 Sep - 29 Sep Wizz Air Malta
22 Sep - 29 Sep easyJet
18 Sep - 24 Sep Vueling Airlines
09 Sep - 15 Sep Ryanair
08 Sep - 15 Sep easyJet direct
27 Sep - 03 Oct Ryanair
12 Sep - 15 Sep easyJet
30 Sep - 07 Oct Wizz Air UK
22 Sep - 29 Sep easyJet direct
15 Sep - 17 Sep easyJet
10 Sep - 15 Sep Ryanair
24 Sep - 08 Oct easyJet
22 Sep - 03 Oct Ryanair
22 Sep - 09 Oct Ryanair
22 Sep - 08 Oct Ryanair
24 Sep - 02 Oct easyJet
24 Sep - 01 Oct Ryanair
18 Sep - 03 Oct Ryanair
18 Sep - 08 Oct Ryanair

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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