Cheap flights from London Heathrow Airport to Cancún from C$ 784

In general, September is the cheapest month to fly from London Heathrow Airport to Cancún. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 996. The month of March is another great option to travel to Cancún, with average flight prices from London Heathrow Airport averaging around C$ 1,037.

The cheapest day to depart from London Heathrow Airport to Cancún is on a Monday. Travellers who choose to depart for Cancún on a Monday will often find tickets for as low as C$ 1,004. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around C$ 1,252. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

Our data shows that the cheapest London Heathrow Airport to Cancún flights are usually those with departure times in the morning. Our users have found flights to Cancún in the morning for as low as C$ 975. Flights to Cancún are more costly at noon, with an average ticket price of C$ 1,248. Departure times at noon 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 Heathrow - Cancun flight prices

You are more likely to see cheaper flights to Cancún from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around C$ 1,212 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from London Heathrow Airport for as low as C$ 913 on momondo.

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Cancún.

As of April 2026, prices for London Heathrow Airport to Cancún flights are approximately 19% cheaper when compared to flights at the same time last year.

Historically, on average around 3% 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 107 minutes.

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

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

According to our data, Virgin Atlantic has had the least delays on this route over the last 12 months, with about 3% of their flights experiencing any sort of delay.