Cheap flights from London Heathrow Airport to Miami from $449

The month of September is, on average, the cheapest month to fly to Miami from London Heathrow Airport, with most prices found around $619. If you are unable to visit Miami during the month of September, then departing from London Heathrow Airport during the month February is also very affordable. Most momondo users find prices during this month for around $627.

The cheapest day to depart from London Heathrow Airport to Miami is on a Tuesday when prices can be found for as low as $712. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Miami on Thursday is $807.

In the morning is the cheapest time of day to fly from London Heathrow Airport to Miami when you can find flight prices for as low as $750. Flying to Miami in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $889. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Miami from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Miami for around $723 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Miami from London Heathrow Airport for as low as $669 on momondo.

There are 4 cabin classes available to choose from on London Heathrow to Miami flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

LEVEL, United Airlines, and SWISS are the most popular carriers operating from London Heathrow to Miami

British Airways, Virgin Atlantic and Delta are the top three most popular airlines that fly to Miami from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Miami. Keep in mind that there are 8 different airlines that fly to Miami on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between London and Miami have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday 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 7% of their flights experiencing any sort of delay.

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

Flights via Atlanta (ATL) offer the lowest average round-trip price of $601.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 13h 23m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 29m.

As of April 2026, 26 flights take off from London Heathrow Airport and land in Miami each day. The most common flight departure time for this route is 3:00PM, with 63% of daily flights taking off in the afternoon.

As of April 2026, 184 flights take off from London Heathrow Airport and land in Miami each week. The most common flight departure day for this route is Sun, with 17% of weekly flights taking off on this day.