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

Return flights

16 Sep - 28 Oct	Wizz Air
18 Sep - 28 Oct	easyJet
17 Sep - 28 Oct	easyJet
25 Sep - 30 Sep	Ryanair
08 Sep - 15 Sep	Corendon Airlines
17 Sep - 01 Oct	easyJet
19 Sep - 22 Sep	SunExpress
05 Sep - 19 Sep	Corendon Airlines
29 Sep - 03 Oct	easyJet
17 Sep - 20 Sep	easyJet
05 Sep - 12 Sep	Corendon Airlines
26 Sep - 27 Sep	easyJet
14 Sep - 20 Sep	British Airways

Also check the deals for one-way flights from Glasgow to Singapore 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 Singapore in September from $663

Return flights