Cheap flights from Ireland to London from €15

In general, January is the cheapest month to fly from Ireland to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €60. If you aren’t able to travel during the month of January, then book flights to London Gatwick Airport from Ireland during April instead. Flights to London Gatwick Airport in April, while not as cheap as those in January, still average around €66.

The cheapest day to depart from Ireland to London Gatwick Airport is on a Tuesday when prices can be found for as low as €67. On the other hand, Sunday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €92.

In the afternoon is the cheapest time of day to fly from Ireland to London Gatwick Airport when you can find flight prices for as low as €74. Flying to London Gatwick Airport in the afternoon is an ideal time because this is during off-peak travel hours. Flights to London Gatwick Airport are more costly in the evening, with an average ticket price of €93. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Dublin to London Gatwick for the best Ireland - London Gatwick flight prices

You are more likely to see cheaper flights to London Gatwick Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around €86 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from Ireland for as low as €62 on momondo.

There is only 1 cabin class available to choose from on Ireland to London Gatwick Airport 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 14% 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 107 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening 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. Friday 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 14% of their flights experiencing any sort of delay.

As of October 2026, there are 1 flights per day flying from Ireland to London Gatwick Airport. The most common time of day flights depart is 15:00, with 44% of flights taking off at midday.

The number of flights available between Ireland and London Gatwick Airport is 12 per week as of October 2026. The most frequent departure day is Wed, with 83% of weekly flights leaving on this day.