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

Return flights

25 Sep - 01 Oct	Ryanair
16 Sep - 30 Sep	Ryanair
11 Sep - 23 Sep	Ryanair
25 Sep - 30 Sep	Ryanair
16 Sep - 22 Sep	Ryanair
11 Sep - 15 Sep	Ryanair
10 Sep - 15 Sep	Ryanair
13 Sep - 15 Sep	Ryanair
16 Sep - 23 Sep	Ryanair
30 Sep - 02 Oct	Ryanair
16 Sep - 17 Sep	Ryanair
16 Sep - 24 Sep	Ryanair
30 Sep - 01 Oct	Ryanair
16 Sep - 06 Oct	Ryanair
26 Sep - 11 Oct	Ryanair
20 Sep - 11 Oct	Ryanair
30 Sep - 14 Oct	Ryanair
26 Sep - 09 Oct	Ryanair
30 Sep - 13 Oct	easyJet
30 Sep - 07 Oct	easyJet

Also check the deals for one-way flights from Amsterdam 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 Amsterdam to Bucharest in September from $159

Return flights