If you're looking to fly from London Heathrow to Mexico City, you might like to know that 03 / Sep / 2025 currently has the cheapest flights. At the moment, there are 13 airlines flying to Mexico City. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Mexico City.
There are 1,090 flights from London Heathrow to or via Mexico City every week. Out of the 13 available airlines, the most popular ones are KLM, British Airways & Finnair. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.
The distance between London Heathrow to Mexico City is 8911 km. Normally, it takes about 15 hrs to fly, and you can definitely expect the journey to be at least 10 hrs 35 mins. You can see the various flight times in the results.
If you want to travel in December, it's best to book your flights early, as this is peak season in Mexico City. The cheapest month to fly is normally January – try searching three to four months prior to then to get a bargain. You can also search by month, which will reveal the cheapest time of the week to fly.
