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

Return flights

25 Sep - 29 Sep	Delta
25 Sep - 30 Sep	Delta
24 Sep - 29 Sep	Ryanair
26 Sep - 30 Sep	Ryanair
26 Sep - 28 Sep	Ryanair
23 Sep - 30 Sep	easyJet
25 Sep - 28 Sep	Ryanair
26 Sep - 03 Oct	Ryanair
29 Sep - 03 Oct	Icelandair
22 Sep - 29 Sep	Ryanair
24 Sep - 30 Sep	easyJet
23 Sep - 28 Sep	easyJet
28 Sep - 05 Oct	Jet2
26 Sep - 31 Oct	Icelandair
19 Sep - 21 Oct	Icelandair
28 Sep - 01 Oct	Aer Lingus
28 Sep - 02 Oct	Delta

Also check the deals for one-way flights from Glasgow to New York 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 Glasgow to New York in September from $536

Return flights