AirHint found the following cheapest return flights from Shannon (SNN) to Newark (EWR) in October 2025 (see full year).

Return flights

14 Oct - 21 Oct	Lufthansa	direct
10 Oct - 16 Oct	United	direct
09 Oct - 13 Oct	United	direct
09 Oct - 16 Oct	United	direct
10 Oct - 13 Oct	United	direct
11 Oct - 14 Oct	United	direct
10 Oct - 24 Oct	United	direct
12 Oct - 24 Oct	Lufthansa	direct
16 Oct - 23 Oct	Lufthansa	direct
07 Oct - 14 Oct	Lufthansa	direct
30 Oct - 04 Nov	Ryanair
29 Oct - 03 Nov	Air Canada
29 Oct - 05 Nov	Ryanair
31 Oct - 03 Nov	Ryanair
22 Oct - 05 Nov	Ryanair
28 Oct - 02 Nov	Ryanair
23 Oct - 02 Nov	Aer Lingus
27 Oct - 02 Nov	Ryanair
26 Oct - 03 Nov	Ryanair
24 Oct - 04 Nov	Ryanair

Also check the deals for one-way flights from Shannon to Newark in October.

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 Shannon to Newark in October from 341€

Return flights