Cheap Flights from Miami International to London Heathrow

Compare Miami International to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Miami International to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Miami International Airport to London Heathrow Airport? If you want to travel next month, return fares start from R 15,037. Find the lowest prices on one-way and return tickets right here.

London.R 4,617 per passenger.Departing Thu, 17 Sep.One-way flight with French Bee.Outbound indirect flight with French Bee, departs from Miami International on Thu, 17 Sep, arriving in London Heathrow.Price includes taxes and charges.From R 4,617, select.

London.R 4,674 per passenger.Departing Tue, 6 Oct.One-way flight with French Bee.Outbound indirect flight with French Bee, departs from Miami International on Tue, 6 Oct, arriving in London Heathrow.Price includes taxes and charges.From R 4,674, select.

London.R 5,126 per passenger.Departing Wed, 5 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Miami International on Wed, 5 Aug, arriving in London Heathrow.Price includes taxes and charges.From R 5,126, select.

London.R 5,228 per passenger.Departing Sun, 8 Nov.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Miami International on Sun, 8 Nov, arriving in London Heathrow.Price includes taxes and charges.From R 5,228, select.

London.R 5,236 per passenger.Departing Wed, 3 Feb.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Miami International on Wed, 3 Feb, arriving in London Heathrow.Price includes taxes and charges.From R 5,236, select.

London.R 5,236 per passenger.Departing Fri, 15 Jan.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Miami International on Fri, 15 Jan, arriving in London Heathrow.Price includes taxes and charges.From R 5,236, select.

London.R 5,236 per passenger.Departing Wed, 9 Dec.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Miami International on Wed, 9 Dec, arriving in London Heathrow.Price includes taxes and charges.From R 5,236, select.

London.R 5,281 per passenger.Departing Tue, 12 Jan.One-way flight with Iberia.Outbound direct flight with Iberia departs from Miami International on Tue, 12 Jan, arriving in London Heathrow.Price includes taxes and charges.From R 5,281, select.

London.R 5,298 per passenger.Departing Mon, 30 Nov.One-way flight with Iberia.Outbound direct flight with Iberia departs from Miami International on Mon, 30 Nov, arriving in London Heathrow.Price includes taxes and charges.From R 5,298, select.

London.R 5,302 per passenger.Departing Sun, 25 Oct.One-way flight with Iberia.Outbound direct flight with Iberia departs from Miami International on Sun, 25 Oct, arriving in London Heathrow.Price includes taxes and charges.From R 5,302, select.

London.R 5,310 per passenger.Departing Mon, 7 Sep.One-way flight with Air France.Outbound direct flight with Air France departs from Miami International on Mon, 7 Sep, arriving in London Heathrow.Price includes taxes and charges.From R 5,310, select.

London.R 5,310 per passenger.Departing Tue, 4 May.One-way flight with British Airways.Outbound direct flight with British Airways departs from Miami International on Tue, 4 May, arriving in London Heathrow.Price includes taxes and charges.From R 5,310, select.

London.R 5,310 per passenger.Departing Mon, 8 Mar.One-way flight with American Airlines.Outbound direct flight with American Airlines departs from Miami International on Mon, 8 Mar, arriving in London Heathrow.Price includes taxes and charges.From R 5,310, select.

London.R 5,310 per passenger.Departing Mon, 12 Apr.One-way flight with British Airways.Outbound direct flight with British Airways departs from Miami International on Mon, 12 Apr, arriving in London Heathrow.Price includes taxes and charges.From R 5,310, select.

London.R 5,313 per passenger.Departing Wed, 29 Jul.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Miami International on Wed, 29 Jul, arriving in London Heathrow.Price includes taxes and charges.From R 5,313, select.

London.R 5,314 per passenger.Departing Sun, 7 Feb.One-way flight with Iberia.Outbound direct flight with Iberia departs from Miami International on Sun, 7 Feb, arriving in London Heathrow.Price includes taxes and charges.From R 5,314, select.

Find the cheapest month to fly from Miami International to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Miami International to London Heathrow flights are currently cheapest in September.

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Direct flights from Miami International to London Heathrow

Miami International to London Heathrow: Alternative routes

Compare routes from Miami International to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Miami to London: Flight information

The things to know before you go.

Cheapest flight found	R 4,617
Cheapest month to fly	September
Average flight time	8 hrs, 47 mins
Most popular airline	KLM
Average flights per week	232

Finding cheap flights from Miami International to London Heathrow: Frequently asked questions

How much are return flights from Miami International to London Heathrow?

The best price we found for a return flight from Miami International to London Heathrow is R 9,591. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Miami International to London Heathrow?

8 hours and 47 minutes is the average flight time from Miami International to London Heathrow.

Which airlines fly direct from Miami International to London Heathrow?

KLM, American Airlines and Finnair fly direct from Miami International to London Heathrow.

How many flights are there a week from Miami International to London Heathrow?

As of June 2026, there are 232 flights per week flying from Miami International to London Heathrow.

When is the cheapest time to fly from Miami International to London Heathrow?

The cheapest month to fly from Miami International to London Heathrow is usually September.

Which upcoming date is cheapest to fly from Miami International Airport to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Miami International Airport to London Heathrow Airport on Friday, 25 September 2026.

Can I get a direct flight from Miami International Airport to London Heathrow Airport?

Yes – the average flight time is 8 hours and 47 minutes.

How can I find the best flight deal to London Heathrow?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Miami International Airport to London Heathrow with?

Currently, LEVEL and Iberia offer the cheapest flight tickets to London Heathrow.

Flying from Miami International Airport (MIA) to London Heathrow Airport (LHR): what you need to know

Around 8 hours 45 minutes is how long you'll be travelling on a direct flight from Miami International Airport to London Heathrow Airport.
London's timezone is UTC+0, making London four hours ahead of Miami.
Each week, there are 52 Miami International Airport to London Heathrow Airport flights. If you prefer to jet off as soon as possible, jump on the 17:05 Virgin Atlantic flight. If you'd rather make the most of your time before you fly, the latest flight is at 23:55 with Virgin Atlantic.
To ensure you catch your MIA to LHR flight, leave enough time for things like check-in and baggage drop. Arriving two hours before international departures and one hour before domestic flights is the general rule.
During popular months like July, you'll want to get to the airport even earlier. Plan to arrive two hours before a domestic departure and four hours ahead for international flights when you travel during a peak period in general.
With direct flights from Miami International Airport to London Heathrow Airport operated by a number of airlines, flying to London (and then other corners of United Kingdom) is a breeze. You can travel nonstop with these carriers:
American Airlines is the most frequently booked airline on this route.
Among carriers operating MIA to LHR flights, American Airlines leads the way for on-time arrivals.
We make it simple to book a flight with a stopover. To see all your options for tickets from Miami International Airport to London Heathrow Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to tour your chosen city. Top stopovers between MIA and LHR include:
- Raleigh-Durham International Airport
- Orlando International Airport
- John F. Kennedy International Airport

How to find the cheapest flights from Miami International Airport (MIA) to London Heathrow Airport (LHR)

At the moment, R 4,617 is the lowest price we've found for a one-way Miami International Airport to London Heathrow Airport flight. The best price for a return ticket is R 9,591. Keep in mind that fares can change due to demand at the time of booking.
Get cheap tickets from MIA to LHR by booking one month ahead. Based on our research, that's the sweet spot for finding a bargain.
December is the cheapest month for flights from Miami International Airport to London Heathrow Airport. If you need to fly at a different time of year, the 'Whole month' tool will give you the lowest airfares for each month.
Save time searching for cheap flights from MIA to LHR by creating a Price Alert. You'll get an email or push notification on the app when a new discounted fare appears.
Tailor your trip using filters. Select your ideal arrival and departure times, airlines and total journey duration. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Miami International Airport to London Heathrow Airport.

Handy information about Miami International Airport (MIA)

The address for MIA is 4200 N.W. 21 Street.
When it comes to Miami International Airport's on-time performance, data shows 76.14% of flights arrive within the scheduled timeframe.
Miami International Airport is around 16 kilometres from central Miami. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 20 minutes or so to arrive, depending on the traffic.
You can expect a trip time of roughly 1 hour 20 minutes when using public transport.
Taking an early flight from Miami International Airport to London Heathrow Airport? Avoid the last-minute rush to the terminal (and catch some extra z's) by picking one of these stays near MIA:

Arriving at London Heathrow Airport (LHR)

Consider booking a hotel close to LHR if you have a late Miami International Airport to London Heathrow Airport flight. Settle into one of these accommodation options and make your arrival easier:
Explore without limits with a London Heathrow Airport rental car. Pick up a set of wheels from Surprice, U-Save or Green Motion and see more of London and beyond.
Reserving your ride from London Heathrow Airport about one week ahead can help you get the lowest rate.

Getting from London Heathrow Airport (LHR) to central London

From London Heathrow Airport, London is approximately 31 kilometres away. It takes around 55 minutes to reach the centre driving.
Travelling to the centre by public transport typically takes 1 hour.

When to fly to London Heathrow Airport (LHR)

July is the most popular month for flights from Miami International Airport to London Heathrow Airport. To skip the crowds, go to London in February.
The warmest month in London is July, with temperatures ranging between 11ºC (52ºF) and 26ºC (79ºF). Lock in your flights from Miami International Airport to London Heathrow Airport in this month if this is the kind of weather you like.
Search for cheap tickets from MIA to LHR in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

Explore more of United Kingdom

Birmingham is just one of the many cities in United Kingdom waiting to be explored once you've taken in the sights of London. Around 161 kilometres away to the north-west, its top attractions include Cadbury World, The Library of Birmingham and National Sea Life Centre.
Around 177 kilometres west of London, Bristol is another essential stop in United Kingdom. Experience major highlights starting with Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.