Cheap flights from Dublin to London from C$ 34

In general, September is the cheapest month to fly from Dublin to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 140. If you aren’t able to travel to London during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 140.

According to our data, Tuesday is the cheapest day to fly to London from Dublin. The lowest ticket price found for a Tuesday departure recently was C$ 121. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Dublin to London for around C$ 321.

Our most recent data shows that the best time of day to fly to London is in the evening. Flights from Dublin to London during this time can be as low as C$ 134. At noon is when there is more demand to fly to London, so prices are often more expensive at around C$ 856 per ticket.

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 C$ 237 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 C$ 175 on momondo.

There are 2 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 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 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, Aer Lingus has had the least 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 53 per day as of November 2026. The most frequent departure time is 8:00a.m., with 42% of daily flights leaving at noon.

376 flights are operational weekly from Dublin to London as of November 2026. The most popular departure day for this route is Mon, with 28% of flights per week taking off on this day.