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.

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 7% of flights being delayed.

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 Monday has historically faced a higher average of delays compared to other days of the week.

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 152 minutes.

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

Departing from Miami to London Heathrow Airport will take you 18h 47m. 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 £402, 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 32% 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 £121. Users have also found prices from £277 and £283 on Delta and British Airways, respectively.

Weekly flight availability from Miami to London Heathrow Airport

The most flights from MIA to LHR are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 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 £943, our data shows the cheapest flight currently is £367. When looking at the most popular route, (Miami - London Heathrow), you can expect to pay £459 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: KLM (86%), Air France (85%), Delta (85%).

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

Virgin Atlantic, British Airways and KLM 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 31 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.

£371+ Cheap Flights from Miami to London Heathrow Airport

Q: 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 £821 and £560 in October. The cheapest return flight price found within the last 3 days was £672 on Air Canada (28 Oct-11 Nov).

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

Cheap flight deals from Miami to Heathrow

Enter your travel dates to find the best prices.

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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 14 May 2026.

Wed 28/1010:20

MIA

LHR

2 stops16h 10m

Air Canada

Wed 11/1106:50

LHR

MIA

2 stops20h 39m

Air Canada

Deal found 10/5£672

Wed 2/908:15

MIA

LHR

1 stop17h 15m

Air Canada

Wed 23/908:40

LHR

MIA

2 stops18h 37m

Air Canada

Deal found 11/5£673

Wed 19/807:00

MIA

LHR

2 stops18h 30m

United Airlines

Tue 1/908:45

LHR

MIA

1 stop13h 40m

United Airlines

Deal found 9/5£674

Sat 8/819:35

MIA

LHR

Nonstop8h 50m

British Airways

Tue 18/812:15

LHR

MIA

Nonstop9h 30m

British Airways

Deal found 9/5£674

Mon 17/819:40

MIA

LHR

1 stop17h 10m

SWISS

Mon 31/818:40

LHR

MIA

1 stop27h 45m

SWISS

Deal found 9/5£675

Sun 26/722:00

MIA

LHR

1 stop30h 10m

LEVEL

Sun 23/809:55

LHR

MIA

1 stop15h 05m

LEVEL

Deal found 9/5£676

Wed 2/907:00

MIA

LHR

2 stops22h 00m

Air Canada

Wed 9/908:40

LHR

MIA

2 stops18h 37m

Air Canada

Deal found 10/5£677

Wed 19/803:50

MIA

LHR

1 stop27h 55m

TAP AIR PORTUGAL

Tue 25/819:50

LHR

MIA

1 stop32h 35m

TAP AIR PORTUGAL

Deal found 9/5£677

Wed 29/722:40

MIA

LHR

Nonstop8h 55m

British Airways

Wed 9/909:55

LHR

MIA

Nonstop9h 35m

British Airways

Deal found 9/5£678

Tue 21/722:35

MIA

LHR

Nonstop9h 00m

Virgin Atlantic

Tue 18/819:45

LHR

MIA

1 stop27h 05m

Virgin Atlantic

Deal found 11/5£680

Wed 23/908:15

MIA

LHR

1 stop17h 15m

Multiple Airlines

Tue 29/909:30

LHR

MIA

2 stops17h 47m

Multiple Airlines

Deal found 11/5£681

Tue 18/813:55

MIA

LHR

1 stop11h 45m

British Airways

Tue 1/909:55

LHR

MIA

Nonstop9h 35m

British Airways

Deal found 11/5£682

Find flight deals from Miami to Heathrow

Round-trip from	£672
One-way from	£371
Popular in	June
Cheapest in	September
Average price	£684
Good round-trip deal	£783 or less
Good one-way deal	£411 or less

Air Canada
28/10-11/11
4 total stops
36h 49m total
Miami to London

Search Deals

TAP AIR PORTUGAL
10/10
1 total stop
12h 50m total
Miami to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£86 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in May 2026

Search Deals

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

Search Deals

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

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 26/7

22:00-09:10

1 stop30h 10m

London Heathrow

Sun 23/8

09:55-20:00

1 stop15h 05m

£676

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 1/7

08:48-08:35

2 stops18h 47m

London Heathrow

Wed 15/7

07:45-23:22

1 stop20h 37m

£862

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 22/9

08:48-06:30

2 stops16h 42m

London Heathrow

Sat 26/9

08:45-17:25

1 stop13h 40m

£884

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 20/9

08:48-06:55

2 stops17h 07m

London Heathrow

Sat 26/9

08:45-17:25

1 stop13h 40m

£885

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 6/6

20:40-21:20

1 stop19h 40m

London Heathrow

Fri 3/7

08:40-17:25

1 stop13h 45m

£904

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 11/7

22:35-12:35

Nonstop9h 00m

London Heathrow

Sun 19/7

15:15-23:39

1 stop13h 24m

£906

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 17/6

16:00-12:15

2 stops15h 15m

London Heathrow

Tue 23/6

06:30-14:45

1 stop13h 15m

£907

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 1/7

18:05-08:05

Nonstop9h 00m

London Heathrow

Mon 13/7

09:20-18:20

1 stop14h 00m

£911

Fastest return journey

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 21/6

22:35-12:35

Nonstop9h 00m

London Heathrow

Tue 30/6

15:50-20:45

Nonstop9h 55m

£921

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 6/6

18:21-21:40

1 stop22h 19m

London Heathrow

Thu 18/6

09:55-14:30

Nonstop9h 35m

£924

Flights are sorted by cheapest return flights first.

Deals found on 11/5

Showing 1-10 of 24 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, September is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of £445). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of £824). 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?

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

1,517 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

KLM

7.8

Good

1,517 reviews

KLM

7.8

Good

1,517 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Virgin Atlantic

7.4

Good

688 reviews

KLM

7.8

Good

1,517 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

American Airlines

7.1

Good

11,664 reviews

KLM

7.8

Good

1,517 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

British Airways

6.7

Okay

7,979 reviews

KLM

7.8

Good

1,517 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 31 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 18h 47m. 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 £402, 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 32% 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 £121. Users have also found prices from £277 and £283 on Delta and British Airways, 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: KLM (86%), Air France (85%), Delta (85%).
What are the cheapest flights from Miami to London Heathrow Airport?
While on average a flight from Miami to London Heathrow Airport is generally £943, our data shows the cheapest flight currently is £367. When looking at the most popular route, (Miami - London Heathrow), you can expect to pay £459 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, September is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of £445). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of £824). 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£402	Average£538	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£406	Average£811	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£421	Average£673	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£550	Average£642	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 £371

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. 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 14 May 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 14 May 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 14 May 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 14 May 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 14 May 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 14 May 2026.

Last-minute flights from Miami to HeathrowDiscover last-minute flight deals from Miami to Heathrow. Data last updated 14 May 2026 and is based on user searches.

Discover last-minute flight deals from Miami to Heathrow. Data last updated 14 May 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 14 May 2026.

Search for one-way flight options from Miami to Heathrow. Find affordable one-way fares based on user searches. Data last updated 14 May 2026.

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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

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

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

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?

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

Weekly flight availability from Miami to London Heathrow Airport

How often are flights from Miami to London delayed?

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

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

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

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

Find useful and relevant information for your journey from Miami to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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?

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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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Book a non-stop flight to one of these other cities located in England.

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 14 May 2026.

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Top 4 airlines flying from Miami to Heathrow

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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 14 May 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 14 May 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 14 May 2026.

Last-minute flights from Miami to Heathrow
Discover last-minute flight deals from Miami to Heathrow. Data last updated 14 May 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 14 May 2026.