AirHint found the following cheapest return flights from London (LGW) to Skiathos (JSI) in August 2025 (see full year).

Return flights

29 Aug - 04 Sep	Wizz Air Malta
28 Aug - 11 Sep	Wizz Air Malta
18 Aug - 25 Aug	TUI	direct
30 Aug - 04 Sep	Wizz Air Malta
31 Aug - 11 Sep	easyJet
28 Aug - 04 Sep	Wizz Air Malta
27 Aug - 04 Sep	Wizz Air Malta
26 Aug - 03 Sep	easyJet
28 Aug - 25 Sep	Wizz Air Malta
26 Aug - 02 Sep	easyJet
27 Aug - 25 Sep	Vueling Airlines
11 Aug - 20 Aug	TUI	direct
15 Aug - 20 Aug	TUI	direct
12 Aug - 17 Aug	easyJet	direct
02 Aug - 07 Aug	Wizz Air Malta
03 Aug - 11 Aug	easyJet
17 Aug - 21 Aug	easyJet	direct
10 Aug - 14 Aug	Wizz Air UK
12 Aug - 19 Aug	easyJet	direct
04 Aug - 11 Aug	Wizz Air Malta

Also check the deals for one-way flights from London to Skiathos in August.

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 August from $204

Return flights