How often are flights from Miami to London delayed?

About 14% of weekly flights between Miami and London have experienced delays in the past year, with the average delay time being 167 minutes.

Which airline has the best punctuality record on Miami to London flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 8% of flights being delayed.

What is the most punctual flight time for Miami to London flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

How long is the flight from Miami to London Heathrow Airport?

Departing from Miami to London Heathrow Airport will take you 8h 45m. Airlines will cover a distance of 4414 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Miami to London Heathrow Airport round-trip?

KLM, at £439, was found to be the cheapest airline from Miami to London Heathrow Airport.Alternate airlines flying return to your destination include Virgin Atlantic and British Airways. KLM is currently priced 41% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Miami to London Heathrow Airport one-way?

For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £125. Users have also found prices from £245 and £246 on Delta and American Airlines, respectively.

Weekly flight availability from Miami to London Heathrow Airport

The most flights from MIA to LHR are scheduled on a Friday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (20 on average).

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the cheapest flights from Miami to London Heathrow Airport?

While on average a flight from Miami to London Heathrow Airport is generally £1,048, our data shows the cheapest flight currently is £245. When looking at the most popular route, (Miami - London Heathrow), you can expect to pay £366 for that flight.

What are the most reliable airlines from Miami to London Heathrow Airport?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Miami to London Heathrow Airport on time: Aer Lingus (88%), KLM (88%), SAUDIA (88%).

What are the most popular airlines that fly from Miami to London Heathrow Airport?

Virgin Atlantic, British Airways and American Airlines are the most popular airlines when flying from Miami to London Heathrow Airport.

What airport do you fly from for flights from Miami to London Heathrow?

If you book a flight to London Heathrow from Miami, you will be flying from Miami, which is the city’s only airport. Miami (MIA) is located 6.1 mi from the center of Miami. There are 20 flights from Miami to London Heathrow per day from 4 different airlines.

Can I find deals for flights from Miami to Heathrow that include hotel bookings?

Yes. In addition to deals on Miami to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Miami to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Miami to Heathrow.

Can I find deals for business class flights from Miami to Heathrow?

Yes. Cheapflights offers flight deals from Miami to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£274+ Cheap Flights from Miami to London Heathrow Airport

Cheapflights Tip: The best prices from Miami to London Heathrow are usually found in February or April, booked 55 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

Cheap flight deals from Miami to Heathrow

Enter your travel dates to find the best prices.

Cheapest

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Direct

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One-way

Cheapest flights from Miami to Heathrow
Explore the most affordable flight options available from Miami to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.

Wed 4/1116:45 -

2 stops22h 20m

Wed 11/1120:50 -

2 stops22h 55m

Deal found 7/10£564

Tue 24/1111:37 -

2 stops16h 43m

Tue 1/1213:55 -

2 stops57h 10m

Deal found 12/10£565

Fri 27/1119:55 -

2 stops15h 30m

Sun 6/1206:40 -

2 stops23h 17m

Deal found 8/10£566

Sat 5/1219:55 -

1 stop15h 05m

Wed 9/1219:30 -

1 stop27h 35m

Deal found 9/10£567

Thu 29/1020:55 -

1 stop15h 05m

Tue 3/1106:40 -

2 stops21h 23m

Deal found 8/10£567

Sun 8/1116:40 -

2 stops22h 25m

Mon 23/1117:35 -

3 stops26h 15m

Deal found 9/10£568

Wed 4/1116:20 -

2 stops18h 40m

Tue 17/1118:05 -

2 stops53h 00m

Deal found 11/10£569

Sun 8/1119:55 -

1 stop15h 05m

Mon 16/1106:40 -

1 stop16h 25m

Deal found 7/10£570

Mon 2/1119:55 -

2 stops15h 30m

Thu 5/1118:40 -

1 stop28h 25m

Deal found 7/10£571

Sat 7/1119:55 -

1 stop15h 05m

Sat 14/1106:40 -

1 stop16h 25m

Deal found 8/10£572

Find flight deals from Miami to Heathrow

Round-trip from	£564
One-way from	£274
Popular in	July
Cheapest in	February
Average price	£722
Good round-trip deal	£537 or less
Good one-way deal	£328 or less

Scandinavian Airlines
6/11-13/11
3 total stops
36h 28m total
Miami to London

Search Deals

Icelandair
16/12-31/12
1 total stop
21h 15m total
Miami to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£111 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Miami to London Heathrow.

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Price to beat on a one-way flight from Miami to London Heathrow.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Miami to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Sat 21/11

21:10-14:25

1 stop12h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£342

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Tue 10/11

16:50-06:30

Nonstop8h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£347

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Wed 11/11

08:45-09:10

3 stops19h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£350

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Thu 12/11

22:55-12:40

Nonstop8h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£385

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Tue 5/1

22:50-12:35

Nonstop8h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£501

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Mon 23/11

22:50-12:35

Nonstop8h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£501

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Tue 24/11

08:45-08:25

3 stops18h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£504

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Mon 19/10

11:25-16:25

3 stops24h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£508

Fastest return journey

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Tue 15/12

22:00-11:30

Nonstop8h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£524

MiamiLondon

MIA Miami - LHR London Heathrow

MIALHR

Miami

Thu 29/10

20:55-21:20

2 stops20h 25m

London Heathrow

Sun 8/11

06:40-22:56

2 stops21h 16m

£574

Flights are sorted by cheapest return flights first.

Deals found on 11/10

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Miami to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Miami with our price prediction graph.

MIA-LHR

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Miami to London Heathrow Airport

Prices

Airlines

Delays

How far ahead should I book a flight from Miami to London Heathrow Airport?

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Miami to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Miami to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of £565). Flying from Miami to London Heathrow Airport in July is currently the most expensive (average of £943). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MIA to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Miami to London Heathrow Airport as you normally would.

How much does it cost for a return flight from Miami to London Heathrow Airport?

Airfare is below average for this route at the moment.

Miami to London Heathrow Airport flights typically cost between £601 and £846 in November.
The cheapest return price found within the last 5 days was £564 on Scandinavian Airlines (6 Nov–13 Nov).

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Miami to London Heathrow Airport, such as KLM,Virgin Atlantic, andAmerican Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,584 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

KLM

7.8

Good

1,584 reviews

KLM

7.8

Good

1,584 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Virgin Atlantic

7.5

Good

694 reviews

KLM

7.8

Good

1,584 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

American Airlines

7.0

Good

12,150 reviews

KLM

7.8

Good

1,584 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

British Airways

6.7

Okay

8,259 reviews

KLM

7.8

Good

1,584 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Related info for your journey

What airport do you fly from for flights from Miami to London Heathrow?
If you book a flight to London Heathrow from Miami, you will be flying from Miami, which is the city’s only airport. Miami (MIA) is located 6.1 mi from the center of Miami. There are 20 flights from Miami to London Heathrow per day from 4 different airlines.
How long is the flight from Miami to London Heathrow Airport?
Departing from Miami to London Heathrow Airport will take you 8h 45m. Airlines will cover a distance of 4414 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Miami to London Heathrow Airport round-trip?
KLM, at £439, was found to be the cheapest airline from Miami to London Heathrow Airport.Alternate airlines flying return to your destination include Virgin Atlantic and British Airways. KLM is currently priced 41% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Miami to London Heathrow Airport one-way?
For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £125. Users have also found prices from £245 and £246 on Delta and American Airlines, respectively.
What are the most reliable airlines from Miami to London Heathrow Airport?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Miami to London Heathrow Airport on time: Aer Lingus (88%), KLM (88%), SAUDIA (88%).
What are the cheapest flights from Miami to London Heathrow Airport?
While on average a flight from Miami to London Heathrow Airport is generally £1,048, our data shows the cheapest flight currently is £245. When looking at the most popular route, (Miami - London Heathrow), you can expect to pay £366 for that flight.
Can I find deals for flights from Miami to Heathrow that include hotel bookings?
Yes. In addition to deals on Miami to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Miami to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Miami to Heathrow.
Can I find deals for business class flights from Miami to Heathrow?
Yes. Cheapflights offers flight deals from Miami to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Miami to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of £565). Flying from Miami to London Heathrow Airport in July is currently the most expensive (average of £943). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 4 airlines flying from Miami to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£439	Average£609	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£480	Average£861	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£498	Average£794	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£562	Average£863	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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How does Cheapflights help users find flights from Miami to Heathrow?

Cheapflights makes it easy to find Miami to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Miami to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Miami.

Can Cheapflights find flights from Miami to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from Miami to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from Miami to Heathrow become cheaper?

Yes! Start tracking prices for Miami to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Miami to London Heathrow Airport from £274

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Miami to Heathrow

Cheapest flights from Miami to HeathrowExplore the most affordable flight options available from Miami to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.

Explore the most affordable flight options available from Miami to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.

Best flights from Miami to HeathrowDiscover carefully curated flight deals from Miami to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Discover carefully curated flight deals from Miami to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Direct flights from Miami to HeathrowExplore direct flight options from Miami to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Explore direct flight options from Miami to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Last-minute flights from Miami to HeathrowDiscover last-minute flight deals from Miami to Heathrow. Data last updated 12 October 2026 and is based on user searches.

Discover last-minute flight deals from Miami to Heathrow. Data last updated 12 October 2026 and is based on user searches.

One-way flights from Miami to HeathrowSearch for one-way flight options from Miami to Heathrow. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Search for one-way flight options from Miami to Heathrow. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Find flight deals from Miami to Heathrow

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Popular in

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Miami to London Heathrow Airport that are best for you.

Best time to book a flight from Miami to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Miami with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from Miami to London Heathrow Airport?

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Miami to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Miami to London Heathrow Airport?

What is the cheapest time of day to fly from MIA to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Miami to London Heathrow Airport as you normally would.

How much does it cost for a return flight from Miami to London Heathrow Airport?

Airfare is below average for this route at the moment.

Miami to London Heathrow Airport flights typically cost between £601 and £846 in November.The cheapest return price found within the last 5 days was £564 on Scandinavian Airlines (6 Nov–13 Nov).

Weekly flight availability from Miami to London Heathrow Airport

The most flights from MIA to LHR are scheduled on a Friday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (20 on average).

How often are flights from Miami to London delayed?

About 14% of weekly flights between Miami and London have experienced delays in the past year, with the average delay time being 167 minutes.

What is the most punctual flight time for Miami to London flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Miami to London flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 8% of flights being delayed.

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Miami to London Heathrow Airport, such as KLM,Virgin Atlantic, andAmerican Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Miami to London Heathrow?

How long is the flight from Miami to London Heathrow Airport?

What are the cheapest airlines flying from Miami to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Miami to London Heathrow Airport one-way?

What are the most reliable airlines from Miami to London Heathrow Airport?

What are the cheapest flights from Miami to London Heathrow Airport?

Can I find deals for flights from Miami to Heathrow that include hotel bookings?

How can I find direct flights from Miami to Heathrow?

Can I find deals for business class flights from Miami to Heathrow?

What is the cheapest month to book a flight from Miami to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Miami to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

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Search flights from Miami to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 October 2026.

Miami and Heathrow flights

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Top 4 airlines flying from Miami to Heathrow

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How does Cheapflights help users find flights from Miami to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Miami to Heathrow?

Can Cheapflights find flights from Miami to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Miami to Heathrow become cheaper?

Cheapest flights from Miami to Heathrow
Explore the most affordable flight options available from Miami to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.

Best flights from Miami to Heathrow
Discover carefully curated flight deals from Miami to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Direct flights from Miami to Heathrow
Explore direct flight options from Miami to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Last-minute flights from Miami to Heathrow
Discover last-minute flight deals from Miami to Heathrow. Data last updated 12 October 2026 and is based on user searches.

One-way flights from Miami to Heathrow
Search for one-way flight options from Miami to Heathrow. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Miami to London Heathrow Airport flights typically cost between £601 and £846 in November.
The cheapest return price found within the last 5 days was £564 on Scandinavian Airlines (6 Nov–13 Nov).