Cheap flights from Miami to London from £336

In general, February 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 £481. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from Miami averaging around £487.

On average, the least expensive day to fly to London Heathrow Airport from Miami is on a Monday. momondo users have found tickets for Monday departures for as low as £661. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £772.

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 £666. 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 £745 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 £658 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 £629 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.

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

As of July 2026, prices for Miami to London Heathrow Airport flights are approximately 3% cheaper when compared to flights at the same time last year.

Air Canada, SWISS, and KLM are the most popular carriers operating from Miami to London Heathrow

Virgin Atlantic, British Airways and American Airlines 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 55% 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 156 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the evening 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. Friday 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 7% of their flights experiencing any sort of delay.

20 flights are operational daily from Miami to London Heathrow Airport as of July 2026. The most popular departure time for this route is 19:00, with 72% of flights per day taking off in the evening.

As of July 2026, there are 144 flights per week flying from Miami to London Heathrow Airport. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.