Cheap flights from London Luton Airport to Ireland from £15

The month of January is, on average, the cheapest month to fly to Ireland from London Luton Airport, with most prices found around £47. If you’re not able to fly to Ireland in January, then November is your next best option. Flight prices from London Luton Airport to Ireland during November average around £53.

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as £47. This is often the case because there is less demand to fly during this day of the week. Flights from London Luton Airport to Ireland on a Friday will generally be more expensive and average around £79. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the morning is the cheapest time of day to fly from London Luton Airport to Ireland when you can find flight prices for as low as £61. Flying to Ireland in the morning is an ideal time because this is during off-peak travel hours. Flights to Ireland are more costly at midday, with an average ticket price of £72. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Ireland from London Luton Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around £69 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from London Luton Airport for as low as £55 on momondo.

There is only 1 cabin class available to choose from on London Luton to Ireland 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 25% of flights between London and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 99 minutes.

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

Sunday 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 24% of their flights experiencing any sort of delay.

As of March 2026, there are 3 flights per day flying from London Luton Airport to Ireland. The most common time of day flights depart is 12:00, with 47% of flights taking off in the afternoon.

As of March 2026, 23 flights take off from London Luton Airport and land in Ireland each week. The most common flight departure day for this route is Fri, with 39% of weekly flights taking off on this day.