AirHint found the following cheapest one-way flights from London (LGW) to Skiathos (JSI) in July 2025 (see full year).

One-Way flights

16 Jul	TUI	direct
28 Jul	TUI	direct
27 Jul	easyJet	direct
21 Jul	TUI	direct
23 Jul	TUI	direct
25 Jul	TUI	direct
31 Jul	easyJet	direct
18 Jul	TUI	direct
30 Jul	TUI	direct
29 Jul	easyJet	direct

Also check the deals for return flights from London to Skiathos 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 London to Skiathos in July from $98

One-Way flights