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

Return flights

06 Sep - 17 Sep	easyJet	direct
13 Sep - 17 Sep	easyJet	direct
06 Sep - 08 Sep	easyJet	direct
17 Sep - 24 Sep	easyJet	direct
16 Sep - 20 Sep	easyJet	direct
09 Sep - 15 Sep	easyJet	direct
02 Sep - 06 Sep	easyJet	direct
13 Sep - 15 Sep	easyJet	direct
06 Sep - 14 Sep	easyJet
03 Sep - 07 Sep	easyJet	direct

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 40€

Return flights