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

Return flights

24 Sep - 25 Oct	easyJet	direct
24 Sep - 01 Oct	easyJet	direct
24 Sep - 29 Oct	easyJet	direct
24 Sep - 14 Oct	easyJet	direct
27 Sep - 25 Oct	easyJet	direct
24 Sep - 27 Oct	easyJet	direct
27 Sep - 01 Oct	easyJet	direct
27 Sep - 15 Oct	easyJet	direct
24 Sep - 08 Oct	easyJet	direct
24 Sep - 07 Oct	easyJet	direct
24 Sep - 30 Sep	easyJet	direct
24 Sep - 29 Sep	easyJet	direct
27 Sep - 30 Sep	easyJet	direct
24 Sep - 27 Sep	easyJet	direct
24 Sep - 24 Sep	easyJet
24 Sep - 25 Sep	easyJet
23 Sep - 24 Sep	easyJet	direct
23 Sep - 30 Sep	easyJet	direct
26 Sep - 30 Sep	easyJet
25 Sep - 30 Sep	easyJet

Also check the deals for one-way flights from Southampton to Glasgow 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 Southampton to Glasgow in September from $76

Return flights