Booking with Aer Lingus 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Shannon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, the most affordable month to book a Aer Lingus flight from London to Shannon in May, with an average price of £50. Conversely, traveling with Aer Lingus from London to Shannon in August will be the most expensive, with an average cost of £93. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
The most Aer Lingus flights from LON to SNN are scheduled on a Monday (3 on average). You will have fewer Aer Lingus flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
In terms of precipitation, rainfall in Shannon ranges from 59.0 - 105.0 inches per month. October is typically the wettest month, when rainfall can reach 105.0 mm. April is typically the driest time to visit Shannon when rainfall is around 59.0 mm.
If weather is an important factor for your trip to Shannon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.0 C).
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