Cheap flights from Shannon, Clare to London from $45

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Shannon, Clare, with most prices found around $153. If you’re not able to fly to London Heathrow Airport in January, then August is your next best option. Flight prices from Shannon, Clare to London Heathrow Airport during August average around $156.

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $236. The most expensive day to fly to London Heathrow Airport is Monday, with ticket prices averaging around $963.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Shannon, Clare to London Heathrow Airport in the evening for as low as $176. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $872.

Fly from Shannon to London Heathrow for the best Shannon - London Heathrow flight prices

There are 3 cabin classes available to choose from on Shannon, Clare to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of September 2026, prices for Shannon, Clare to London Heathrow Airport flights are approximately 14% more expensive when compared to flights at the same time last year.

Historically, on average around 15% of flights between Shannon and London have experienced a delay on any given week. The average delay length over the past 12 months has been 96 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

As of September 2026, there are 12 flights per day flying from Shannon, Clare to London Heathrow Airport. The most common time of day flights depart is 7:00AM, with 40% of flights taking off at noon.

As of September 2026, 87 flights take off from Shannon, Clare and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.