AirHint found the following cheapest one-way flights from Kos (KGS) to London (STN) in July 2025 (see full year).

One-Way flights

17 Jul	Ryanair	direct
21 Jul	Ryanair	direct
24 Jul	Ryanair	direct
15 Jul	Jet2	direct
16 Jul	Jet2	direct
23 Jul	Jet2	direct
14 Jul	Jet2	direct
25 Jul	Ryanair
30 Jul	easyJet
18 Jul	Jet2	direct

Also check the deals for return flights from Kos to London in July.

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 one-way flights from Kos to London in July from $47

One-Way flights