Cheap flights from Miami to London from £274

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 £456. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Miami averaging around £480.

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 £508. 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 £675.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Miami to London Heathrow Airport in the afternoon for as low as £568. 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 evening when prices are £571 on average. Flights to London Heathrow Airport from Miami in the evening 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 £564 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 £501 on momondo.

There are 4 cabin classes available to choose from on Miami to London Heathrow 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 March 2026, prices for Miami to London Heathrow Airport flights are approximately 9% more expensive when compared to flights at the same time last year.

TAP AIR PORTUGAL and Lufthansa 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 51% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 5 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 145 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.

Wednesday 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 9% of their flights experiencing any sort of delay.

22 flights are operational daily from Miami to London Heathrow Airport as of March 2026. The most popular departure time for this route is 22:00, with 71% of flights per day taking off in the evening.

As of March 2026, there are 159 flights per week flying from Miami to London Heathrow Airport. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.