AirHint found the following cheapest return flights from Southampton (SOU) to Guernsey (GCI) in October 2025 (see full year).

Return flights

03 Oct - 05 Oct	Blue Islands	direct
24 Oct - 27 Oct	Blue Islands	direct
02 Oct - 06 Oct	Aurigny	direct
24 Oct - 26 Oct	Blue Islands	direct
22 Oct - 30 Oct	Blue Islands	direct
03 Oct - 07 Oct	Blue Islands	direct

Also check the deals for one-way flights from Southampton to Guernsey in October.

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 Guernsey in October from 165€

Return flights