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

Return flights

25 Sep - 02 Oct	Spirit Airlines
24 Sep - 01 Oct	Spirit Airlines
29 Sep - 06 Oct	Spirit Airlines
16 Sep - 23 Sep	Spirit Airlines
15 Sep - 22 Sep	Spirit Airlines
19 Sep - 26 Sep	Spirit Airlines
11 Sep - 18 Sep	Spirit Airlines
30 Sep - 07 Oct	Spirit Airlines
27 Sep - 04 Oct	Spirit Airlines
01 Sep - 08 Sep	Spirit Airlines
20 Sep - 27 Sep	Spirit Airlines
26 Sep - 03 Oct	Frontier Airlines
28 Sep - 05 Oct	Spirit Airlines

Also check the deals for one-way flights from Houston 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 Houston to Split in September from $578

Return flights