AirHint found the following cheapest one-way flights from Prague (PRG) to Skiathos (JSI) in August 2025 (see full year).

One-Way flights

11 Aug	Ryanair	direct
14 Aug	Ryanair	direct
28 Aug	Ryanair	direct
21 Aug	Ryanair	direct
18 Aug	Ryanair	direct
01 Aug	Ryanair
23 Aug	SKY express
08 Aug	SKY express
09 Aug	SKY express
02 Aug	SKY express

Also check the deals for return flights from Prague 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 one-way flights from Prague to Skiathos in August from 53€

One-Way flights