Cheap flights from Ireland to London from €15

In general, June is the cheapest month to fly from Ireland to London Luton Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €44. If you don’t want to visit London Luton Airport in June, then you should wait until February to fly from Ireland, when ticket prices are also cheap, with an average price of €59.

Our data shows that Monday is the least expensive day to fly to London Luton Airport. Tickets to fly out on this day can be as low as €53. The most expensive day to fly to London Luton Airport is Wednesday, with ticket prices averaging around €107.

Our data shows that the cheapest Ireland to London Luton Airport flights are usually those with departure times at midday. Our users have found flights to London Luton Airport at midday for as low as €63. Try not to purchase tickets in the afternoon because they tend to be around €101. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Cork to London Luton for the best Ireland - London Luton flight prices

You are more likely to see cheaper flights to London Luton Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to London Luton Airport for around €77 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Luton Airport from Ireland for as low as €54 on momondo.

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

Historically, on average around 24% of flights between Ireland and London have experienced a delay on any given week. The average delay length over the past 12 months has been 102 minutes.

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

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

According to our data, Ryanair have had the fewest delays on this route over the last 12 months, with about 23% of their flights experiencing any sort of delay.

As of March 2026, there are 1 flights per day flying from Ireland to London Luton Airport. The most common time of day flights depart is 14:00, with 52% of flights taking off in the afternoon.

The number of flights available between Ireland and London Luton Airport is 9 per week as of March 2026. The most frequent departure day is Fri, with 100% of weekly flights leaving on this day.