AirHint found the following cheapest return flights from London (LCY) to Skiathos (JSI) in May 2026 (see full year).

Return flights

26 May - 02 Jun	Lufthansa
29 May - 02 Jun	Lufthansa
15 May - 19 May	Lufthansa
06 May - 13 May	KLM
29 May - 08 Jun	Lufthansa
19 May - 29 May	Lufthansa
17 May - 24 May	ITA Airways
28 May - 04 Jun	Lufthansa
01 May - 04 May	KLM
26 May - 31 May	Lufthansa
03 May - 10 May	ITA Airways
31 May - 07 Jun	KLM
26 May - 29 May	Lufthansa
25 May - 29 May	Lufthansa
22 May - 31 May	Lufthansa
28 May - 01 Jun	Lufthansa

Also check the deals for one-way flights from London to Skiathos 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 Skiathos in May from 388€

Return flights