Cheap flights from London Gatwick Airport to Dublin from £21

In general, January is the cheapest month to fly from London Gatwick Airport to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £54. If you aren’t able to travel to Dublin during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £67.

On average, the least expensive day to fly to Dublin from London Gatwick Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as £104. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around £154. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

Flying to Dublin from London Gatwick Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as £84 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £131 on average. Flights to Dublin from London Gatwick Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Dublin from London Gatwick Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around £80 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from London Gatwick Airport for as low as £58 on momondo.

There are 2 cabin classes available to choose from on London Gatwick Airport to Dublin 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 23% of flights between London and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 111 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon 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. 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 23% of their flights experiencing any sort of delay.

As of September 2026, there are 2 flights per day flying from London Gatwick Airport to Dublin. The most common time of day flights depart is 08:00, with 37% of flights taking off in the evening.

As of September 2026, there are 17 flights per week flying from London Gatwick Airport to Dublin. The most common day of the week flights depart is Tue, with 53% of flights taking off on this day.