Cheapest return flights from London to Shannon in September from $48

AirHint found the following cheapest return flights from London (LON) to Shannon (SNN) in September 2025 (see full year).

Return flights

20 Sep - 22 Sep Ryanair direct
20 Sep - 20 Sep Ryanair direct
22 Sep - 22 Sep Ryanair direct
16 Sep - 18 Sep Ryanair direct
16 Sep - 22 Sep Ryanair direct
16 Sep - 20 Sep Ryanair direct
09 Sep - 18 Sep Ryanair direct
09 Sep - 11 Sep Ryanair direct
09 Sep - 14 Sep Ryanair direct
09 Sep - 22 Sep Ryanair direct
20 Sep - 02 Oct Ryanair direct
20 Sep - 09 Oct Ryanair direct
22 Sep - 02 Oct Ryanair direct
22 Sep - 09 Oct Ryanair direct
16 Sep - 02 Oct Ryanair direct
21 Sep - 02 Oct Ryanair direct
21 Sep - 09 Oct Ryanair direct
20 Sep - 10 Oct Ryanair direct
22 Sep - 10 Oct Ryanair direct
21 Sep - 10 Oct Ryanair direct

Also check the deals for one-way flights from London to Shannon in September.

Skyscanner

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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