Cheapest return flights from London to Shannon in September from 157€

AirHint found the following cheapest return flights from London (LHR) to Shannon (SNN) in September 2026 (see full year).

Return flights

25 Sep - 28 Sep Aer Lingus direct
24 Sep - 28 Sep Aer Lingus direct
18 Sep - 21 Sep Aer Lingus direct
20 Sep - 24 Sep Aer Lingus direct
25 Sep - 27 Sep Aer Lingus direct
03 Sep - 06 Sep Aer Lingus direct
04 Sep - 06 Sep Aer Lingus direct
24 Sep - 26 Sep Aer Lingus direct
24 Sep - 27 Sep Aer Lingus direct

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

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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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