AirHint found the following cheapest return flights from Bristol (BRS) to Skiathos (JSI) in September 2025 (see full year).

Return flights

25 Sep - 02 Oct	Jet2
21 Sep - 25 Sep	Jet2
18 Sep - 25 Sep	Jet2
24 Sep - 02 Oct	easyJet
28 Sep - 12 Oct	easyJet	direct
21 Sep - 29 Sep	Jet2
24 Sep - 12 Oct	easyJet	direct
21 Sep - 12 Oct	easyJet	direct
28 Sep - 05 Oct	easyJet
18 Sep - 22 Sep	Jet2
28 Sep - 08 Oct	easyJet	direct
23 Sep - 25 Sep	Ryanair
21 Sep - 05 Oct	Jet2
24 Sep - 08 Oct	easyJet	direct
24 Sep - 01 Oct	easyJet
18 Sep - 27 Sep	Jet2
20 Sep - 25 Sep	Ryanair
18 Sep - 24 Sep	Jet2
21 Sep - 24 Sep	Jet2
25 Sep - 30 Sep	Jet2

Also check the deals for one-way flights from Bristol to Skiathos in September.

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 Bristol to Skiathos in September from $177

Return flights