AirHint found the following cheapest return flights from Belfast (BFS) to Split (SPU) in September 2025 (see full year).

Return flights

24 Sep - 09 Oct	easyJet
25 Sep - 02 Oct	easyJet
24 Sep - 01 Oct	Ryanair
30 Sep - 05 Oct	easyJet
29 Sep - 05 Oct	easyJet
28 Sep - 05 Oct	easyJet
17 Sep - 24 Sep	easyJet
18 Sep - 25 Sep	easyJet
10 Sep - 17 Sep	easyJet
25 Sep - 28 Sep	easyJet
02 Sep - 07 Sep	Jet2
20 Sep - 27 Sep	Ryanair
06 Sep - 20 Sep	Ryanair
05 Sep - 07 Sep	Ryanair
04 Sep - 07 Sep	Ryanair

Also check the deals for one-way flights from Belfast to Split 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 Belfast to Split in September from 95€

Return flights