Cheap flights from Miami to London from £324

In general, September is the cheapest month to fly from Miami to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £447. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Miami averaging around £477.

On average, the least expensive day to fly to London Heathrow Airport from Miami is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £536. However, this price may fluctuate depending on the airline, the season, and holidays. 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 London Heathrow Airport on Thursday is £670.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Miami to London Heathrow Airport in the evening for as low as £592. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £619 on average. Flights to London Heathrow Airport from Miami in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to London Heathrow Airport from Miami when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £570 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Miami for as low as £503 on momondo.

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

TAP AIR PORTUGAL, Delta, and KLM are the most popular carriers operating from Miami to London Heathrow

Virgin Atlantic, British Airways and KLM are the top three most popular airlines that fly to London Heathrow Airport from Miami according to our data. Virgin Atlantic is the first choice among our users, with 49% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 4 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Miami and London have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

Generally, flights departing in the early afternoon 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. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

29 flights are operational daily from Miami to London Heathrow Airport as of April 2026. The most popular departure time for this route is 22:00, with 82% of flights per day taking off in the evening.

As of April 2026, there are 205 flights per week flying from Miami to London Heathrow Airport. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.