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

Return flights

15 Sep - 02 Oct	easyJet
13 Sep - 16 Sep	easyJet
22 Sep - 08 Oct	easyJet
03 Sep - 08 Sep	easyJet
08 Sep - 16 Sep	easyJet
19 Sep - 20 Sep	easyJet
18 Sep - 23 Sep	Ryanair
22 Sep - 26 Sep	easyJet
13 Sep - 17 Sep	easyJet
18 Sep - 22 Sep	easyJet
20 Sep - 22 Sep	easyJet
15 Sep - 22 Sep	easyJet
24 Sep - 01 Oct	LOT

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 $223

Return flights