Cheapest return flights from Glasgow to Keflavik in September from $178

Best time to book flights for Glasgow (GLA) to Keflavik (KEF) flights at AirHint

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

Return flights

30 Sep - 08 Oct Icelandair direct
23 Sep - 27 Sep Icelandair direct
13 Sep - 27 Sep Icelandair direct
16 Sep - 23 Sep easyJet
25 Sep - 07 Oct easyJet
18 Sep - 21 Sep Icelandair direct
16 Sep - 23 Sep Icelandair direct
25 Sep - 07 Oct Icelandair direct
11 Sep - 15 Sep easyJet
09 Sep - 13 Sep Icelandair direct
02 Sep - 06 Sep Icelandair direct
11 Sep - 15 Sep Icelandair direct
26 Sep - 30 Sep Icelandair direct

Also check the deals for one-way flights from Glasgow to Keflavik in September.

Skyscanner

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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