Cheap flights from Dublin to London from €21

In general, January is the cheapest month to fly from Dublin to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €59. If you aren’t able to travel during the month of January, then book flights to London Gatwick Airport from Dublin during April instead. Flights to London Gatwick Airport in April, while not as cheap as those in January, still average around €65.

The cheapest day to depart from Dublin to London Gatwick Airport is on a Tuesday when prices can be found for as low as €65. On the other hand, Sunday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €96.

In the afternoon is the cheapest time of day to fly from Dublin 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 €97. 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 Dublin - London Gatwick flight prices

You are more likely to see cheaper flights to London Gatwick Airport from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around €84 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 Dublin for as low as €57 on momondo.

There is only 1 cabin class available to choose from on Dublin 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 16% of flights between Dublin and London have experienced a delay on any given week. The average delay length over the past 12 months has been 106 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.

Sunday 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 16% of their flights experiencing any sort of delay.

The number of flights available between Dublin and London Gatwick Airport is 1 per day as of September 2026. The most frequent departure time is 15:00, with 47% of daily flights leaving at midday.

The number of flights available between Dublin and London Gatwick Airport is 10 per week as of September 2026. The most frequent departure day is Fri, with 80% of weekly flights leaving on this day.