Cheap flights from Dublin to London from $24

The cheapest month to fly to London from Dublin is in September. Flight prices, which tend to average around $99, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Dublin averaging around $106.

The cheapest day to depart from Dublin to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $128. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $193. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Dublin in the evening is the least expensive time of day to depart. momondo users have found prices as low as $115 when looking at flights departing in the evening. Flights to London are more costly in the afternoon, with an average ticket price of $187. Departure times in the afternoon 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 flight prices

You are more likely to see cheaper flights to London from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $170 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Dublin for as low as $145 on momondo.

There are 4 cabin classes available to choose from on Dublin to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Ryanair and British Airways are the most popular carriers operating from Dublin to London

British Airways, Ryanair and Aer Lingus are the top three most popular airlines that fly to London from Dublin according to our data. British Airways is the first choice among our users, with 43% of people opting to fly with this airline when traveling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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 103 minutes.

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

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

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

The number of flights available between Dublin and London is 79 per day as of October 2026. The most frequent departure time is 12:00PM, with 49% of daily flights leaving at noon.

As of October 2026, there are 553 flights per week flying from Dublin to London. The most common day of the week flights depart is Thu, with 21% of flights taking off on this day.