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

Return flights

24 Sep - 27 Sep	Ryanair
23 Sep - 30 Sep	Ryanair
25 Sep - 29 Sep	Ryanair
10 Sep - 15 Sep	Ryanair
17 Sep - 23 Sep	Ryanair
27 Sep - 07 Oct	Ryanair
05 Sep - 09 Sep	Ryanair
24 Sep - 26 Sep	Ryanair
20 Sep - 22 Sep	Ryanair
14 Sep - 20 Sep	easyJet
26 Sep - 29 Sep	Ryanair
30 Sep - 07 Oct	easyJet
20 Sep - 11 Oct	Ryanair
30 Sep - 04 Oct	easyJet
18 Sep - 02 Oct	easyJet
26 Sep - 08 Oct	Ryanair
26 Sep - 02 Oct	easyJet
26 Sep - 01 Oct	easyJet
25 Sep - 01 Oct	easyJet
16 Sep - 06 Oct	Ryanair

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 137€

Return flights