Cheapest return flights from London to Kos in September from $162

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

14 Sep - 22 Sep easyJet direct
25 Sep - 29 Sep easyJet direct
12 Sep - 15 Sep Wizz Air Malta
11 Sep - 15 Sep Ryanair
17 Sep - 22 Sep Ryanair
18 Sep - 22 Sep Ryanair
02 Sep - 08 Sep Wizz Air Malta
22 Sep - 29 Sep Ryanair direct
01 Sep - 08 Sep Wizz Air Malta
18 Sep - 22 Sep easyJet direct
21 Sep - 02 Oct easyJet direct
28 Sep - 05 Oct easyJet
29 Sep - 06 Oct easyJet direct
22 Sep - 12 Oct Ryanair
22 Sep - 13 Oct Ryanair
22 Sep - 11 Oct Ryanair
22 Sep - 07 Oct Ryanair
22 Sep - 06 Oct Ryanair
22 Sep - 02 Oct Ryanair direct
25 Sep - 12 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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