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

Return flights

13 Sep - 09 Oct	Ryanair
16 Sep - 30 Oct	easyJet
17 Sep - 30 Oct	easyJet
15 Sep - 30 Oct	Corendon Airlines
19 Sep - 30 Oct	SunExpress
24 Sep - 28 Oct	easyJet
29 Sep - 02 Oct	easyJet
21 Sep - 30 Oct	TUI
08 Sep - 01 Oct	Corendon Airlines
12 Sep - 25 Sep	Corendon Airlines
10 Sep - 30 Sep	Jet2
28 Sep - 02 Oct	Jet2
12 Sep - 15 Sep	Corendon Airlines
05 Sep - 15 Sep	Corendon Airlines
06 Sep - 10 Sep	Jet2
10 Sep - 17 Sep	Jet2
08 Sep - 15 Sep	Corendon Airlines
15 Sep - 30 Sep	Corendon Airlines
22 Sep - 25 Sep	easyJet
07 Sep - 11 Sep	Jet2

Also check the deals for one-way flights from Glasgow to Islamabad 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 Islamabad in September from $543

Return flights