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

Return flights

20 Sep - 29 Sep	Ryanair
30 Sep - 07 Oct	Aer Lingus
25 Sep - 28 Sep	Ryanair
24 Sep - 06 Oct	Ryanair
20 Sep - 22 Sep	Ryanair
22 Sep - 07 Oct	KLM
18 Sep - 28 Sep	Ryanair
29 Sep - 07 Oct	British Airways
10 Sep - 21 Sep	Aer Lingus
29 Sep - 13 Oct	British Airways
18 Sep - 03 Oct	Delta
18 Sep - 23 Sep	Delta
15 Sep - 22 Sep	Delta
24 Sep - 27 Sep	Ryanair
11 Sep - 18 Sep	Ryanair
15 Sep - 18 Sep	Ryanair
27 Sep - 07 Oct	Aer Lingus
27 Sep - 04 Oct	Icelandair
29 Sep - 03 Oct	easyJet
28 Sep - 01 Oct	easyJet

Also check the deals for one-way flights from Glasgow to Newark 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 Newark in September from 383€

Return flights