Cheapest return flights from London (LHR) to Shannon (SNN), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
28 Sep 01 Oct Aer Lingus
Direct Flight
23 Sep 28 Sep Aer Lingus
Direct Flight
27 Sep 28 Sep Aer Lingus
Direct Flight
23 Sep 29 Sep Aer Lingus
Direct Flight
27 Sep 03 Oct Aer Lingus
Direct Flight
17 Sep 04 Oct Aer Lingus
Direct Flight
22 Sep 29 Sep Aer Lingus
Direct Flight
17 Sep 24 Sep Aer Lingus
Direct Flight
16 Sep 22 Sep Aer Lingus
Direct Flight
08 Sep 21 Sep Aer Lingus
Direct Flight
08 Sep 15 Sep Aer Lingus
Direct Flight
08 Sep 11 Sep Aer Lingus
Direct Flight
16 Sep 17 Sep Aer Lingus
Direct Flight
29 Sep 03 Oct Aer Lingus
Direct Flight
06 Sep 06 Oct Aer Lingus
Direct Flight
26 Sep 03 Oct Aer Lingus
Direct Flight
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deals for one-way flights from London to Shannon in September.

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Updated Aug 28, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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