Cheapest return flights from London to Shannon in September from 56€

Best time to book flights for London (STN) to Shannon (SNN) flights at AirHint

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

Return flights

20 Sep - 24 Sep Ryanair direct
20 Sep - 29 Sep Ryanair direct
26 Sep - 29 Sep Ryanair direct
27 Sep - 29 Sep Ryanair direct
25 Sep - 29 Sep Ryanair direct
01 Sep - 20 Sep Ryanair direct
20 Sep - 20 Sep Ryanair direct
11 Sep - 14 Sep 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.

Book a cheap hotel in Shannon

Cheap car rent in Shannon