Cheap flights from Shannon, Clare to London from €51

The month of November is another great option to travel to London Heathrow Airport, with average flight prices from Shannon, Clare averaging around €136.

The cheapest day to depart on your flight to London Heathrow Airport is on a Saturday when prices can be found for as low as €523. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Shannon, Clare because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €854.

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 €152. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €877 on average. Flights to London Heathrow Airport from Shannon, Clare in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

There is only 1 cabin class available to choose from on Shannon to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of March 2026, prices for Shannon, Clare to London Heathrow Airport flights are approximately 46% 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 93 minutes.

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

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

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

As of March 2026, there are 11 flights per day flying from Shannon, Clare to London Heathrow Airport. The most common time of day flights depart is 07:00, with 45% of flights taking off at midday.

78 flights are operational weekly from Shannon, Clare to London Heathrow Airport as of March 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.