AirHint found the following cheapest return flights from Alicante (ALC) to Bucharest (OTP) in September 2025 (see full year).

Return flights

25 Sep - 29 Sep	Air Europa
23 Sep - 29 Sep	Air Europa
23 Sep - 30 Sep	Ryanair
30 Sep - 04 Oct	Ryanair
30 Sep - 14 Oct	Ryanair
30 Sep - 03 Oct	Ryanair
17 Sep - 07 Oct	Wizz Air Malta	direct
17 Sep - 08 Oct	Wizz Air Malta	direct
25 Sep - 05 Oct	Air Europa
29 Sep - 01 Oct	Ryanair
29 Sep - 04 Oct	Ryanair
30 Sep - 05 Oct	Ryanair
29 Sep - 03 Oct	Ryanair
27 Sep - 29 Sep	Air Europa
26 Sep - 29 Sep	Volotea
28 Sep - 30 Sep	Wizz Air Malta
26 Sep - 30 Sep	Volotea
27 Sep - 30 Sep	Wizz Air Malta
24 Sep - 26 Sep	Air Europa
19 Sep - 22 Sep	easyJet

Also check the deals for one-way flights from Alicante to Bucharest 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 Alicante to Bucharest in September from $141

Return flights