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

Return flights

17 Sep - 21 Sep	Ryanair
15 Sep - 19 Sep	Ryanair
24 Sep - 01 Oct	Ryanair
05 Sep - 14 Sep	Ryanair
24 Sep - 29 Sep	easyJet
11 Sep - 22 Sep	Ryanair
11 Sep - 14 Sep	Ryanair
26 Sep - 29 Sep	easyJet
21 Sep - 23 Sep	easyJet
12 Sep - 19 Sep	Ryanair
22 Sep - 29 Sep	easyJet
27 Sep - 03 Oct	Icelandair
25 Sep - 01 Oct	easyJet
26 Sep - 03 Oct	Delta
26 Sep - 04 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 357€

Return flights