Cheapest return flights from Glasgow to Keflavik in December from $459

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

Return flights

29 Dec - 05 Jan Ryanair
28 Dec - 30 Dec Ryanair
31 Dec - 04 Jan Ryanair
30 Dec - 02 Jan Ryanair
29 Dec - 02 Jan easyJet
30 Dec - 04 Jan easyJet
26 Dec - 30 Dec easyJet
26 Dec - 01 Jan Jet2
26 Dec - 01 Jan Icelandair direct
26 Dec - 31 Dec Jet2
27 Dec - 05 Jan Ryanair
26 Dec - 29 Dec Jet2

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

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