AirHint found the following cheapest return flights from London (LGW) to Kos (KGS) in May 2026 (see full year).

Return flights

04 May - 11 May	easyJet
03 May - 06 May	easyJet
09 May - 22 May	easyJet
02 May - 07 May	easyJet
05 May - 09 May	easyJet
07 May - 11 May	easyJet	direct
05 May - 12 May	easyJet
09 May - 16 May	easyJet
11 May - 21 May	easyJet
12 May - 17 May	SKY express
31 May - 08 Jun	easyJet
31 May - 23 Jun	easyJet	direct
28 May - 04 Jun	SKY express
16 May - 03 Jun	SKY express
16 May - 04 Jun	SKY express
27 May - 04 Jun	easyJet	direct
18 May - 04 Jun	easyJet	direct
17 May - 04 Jun	easyJet	direct
28 May - 04 Jun	easyJet	direct
27 May - 07 Jun	easyJet	direct

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

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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Cheapest return flights from London to Kos in May from $223

Return flights