Cheap flights from London to Cancún from $350

If you don’t want to visit Cancún in January, then you should wait until November to fly from London, when ticket prices are also cheap, with an average price of $750.

The cheapest day to depart from London to Cancún is on a Tuesday when prices can be found for as low as $703. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,098. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

Our most recent data shows that the best time of day to fly to Cancún is in the morning. Flights from London to Cancún during this time can be as low as $840. Flights to Cancún are more costly in the afternoon, with an average ticket price of $1,958. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Cancun for the best London - Cancun flight prices

You are more likely to see cheaper flights to Cancún from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around $910 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from London for as low as $659 on momondo.

There are 3 cabin classes available to choose from on London to Cancún flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 38% on your flight if you consider stops on a London to Cancún flight.

As of July 2026, prices for London to Cancún flights are approximately 32% more expensive when compared to flights at the same time last year.

British Airways is the most popular carrier operating from London to Cancun

British Airways, Virgin Atlantic and United Airlines are the top three most popular airlines that fly to Cancún from London according to our data. British Airways is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Cancún. Keep in mind that there are 3 different airlines that fly to Cancún on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between London and Cancún have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

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

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

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

Atlanta (ATL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Toronto (YYZ) offer the lowest average round-trip price of $889.

Flights connecting via Toronto (YYZ) have the shortest average one-way travel time: 13h 35m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 42m.