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

Return flights

29 Dec - 11 Jan	Wizz Air Malta
30 Dec - 08 Jan	Ryanair
28 Dec - 06 Jan	Jet2
29 Dec - 01 Jan	Jet2
27 Dec - 31 Dec	easyJet
31 Dec - 07 Jan	easyJet
29 Dec - 05 Jan	Wizz Air Malta
30 Dec - 06 Jan	British Airways
30 Dec - 01 Jan	Ryanair
31 Dec - 31 Dec	Aer Lingus
30 Dec - 05 Jan	British Airways
27 Dec - 05 Jan	easyJet
28 Dec - 30 Dec	Aer Lingus
27 Dec - 30 Dec	Aer Lingus
27 Dec - 28 Dec	easyJet
27 Dec - 27 Dec	Ryanair

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

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 Glasgow to New York in December from 756€

Return flights