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

Return flights

09 Oct - 12 Oct	Aer Lingus
04 Oct - 11 Oct	Ryanair
08 Oct - 12 Oct	Ryanair
16 Oct - 20 Oct	Aer Lingus
30 Oct - 05 Nov	Ryanair
09 Oct - 16 Oct	Aer Lingus
29 Oct - 06 Nov	Ryanair
09 Oct - 15 Oct	Ryanair
28 Oct - 04 Nov	Ryanair
10 Oct - 18 Oct	Ryanair
10 Oct - 12 Oct	Ryanair
06 Oct - 11 Oct	Ryanair
20 Oct - 27 Oct	Ryanair
31 Oct - 07 Nov	Aer Lingus
27 Oct - 02 Nov	Ryanair
27 Oct - 01 Nov	Ryanair
29 Oct - 06 Nov	Aer Lingus	direct
24 Oct - 02 Nov	Ryanair
28 Oct - 04 Nov	Aer Lingus	direct
27 Oct - 03 Nov	British Airways

Also check the deals for one-way flights from Shannon to New York 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 New York in October from $496

Return flights