Cheap flights from Dublin to London from $70

If you aren’t able to travel during the month of January, then book flights to London from Dublin during September instead. Flights to London in September, while not as cheap as those in January, still average around $130.

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $150. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Dublin to London for around $1,042.

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as $158. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around $1,083.

Fly from Dublin to London Luton 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 $242 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Dublin for as low as $173 on momondo.

There are 3 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.

Historically, on average around 15% 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 100 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.

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, British Airways 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 March 2026, 52 flights take off from Dublin and land in London each day. The most common flight departure time for this route is 08:00, with 40% of daily flights taking off at midday.

As of March 2026, there are 370 flights per week flying from Dublin to London. The most common day of the week flights depart is Fri, with 18% of flights taking off on this day.