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

Return flights

30 Sep - 03 Oct	easyJet
29 Sep - 03 Oct	easyJet
23 Sep - 25 Sep	easyJet
22 Sep - 29 Sep	Ryanair
22 Sep - 26 Sep	Jet2
26 Sep - 02 Oct	Ryanair
28 Sep - 30 Sep	Ryanair
27 Sep - 30 Sep	Wizz Air
25 Sep - 02 Oct	Ryanair
23 Sep - 30 Sep	Aer Lingus
28 Sep - 01 Oct	Ryanair
20 Sep - 27 Sep	Ryanair
19 Sep - 22 Sep	SunExpress
26 Sep - 28 Sep	Ryanair
20 Sep - 23 Sep	Ryanair

Also check the deals for one-way flights from Glasgow 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 Glasgow to Bucharest in September from 150€

Return flights