Cheap flights from Heathrow to Key Biscayne

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Miami (MIA)
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The best prices from Heathrow to Key Biscayne are usually found in January or November, booked 60 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

How to find the cheapest flight from
Heathrow (LHR) to Key Biscayne (MIA)

LHR - MIA
Price
£286 - £512
MIA
Temperature
26 - 33 °C
MIA
Rainfall
44 - 265 mm

Popular in

July

High demand for flights, 27% potential price rise

Cheapest in

January

Best time to find cheap flights, 23% potential price drop

Average price

£323

Average for round-trip flights in March 2021

Round-trip from

£286

From Heathrow to Key Biscayne

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly return from Heathrow to Key Biscayne?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Heathrow to Key Biscayne?

Find a great deal and save up to 44% by booking at least 60 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Heathrow to Key Biscayne within the next two weeks, with the cheapest ticket starting at £380.

When is the cheapest time to fly from Heathrow to Key Biscayne (LHR - MIA)?

A simple way to save on the total cost of your ticket is to fly from Heathrow to Key Biscayne in the afternoon. If you’re flexible enough to do this you can expect to save up to 4% on your trip compared to booking a flight at midday.

Cheap flights from Heathrow to Key Biscayne in March, April 2021

28 Apr - 12 May
£282pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
MIA
Miami
MIA
Miami
Air Canada
 
1 STOP
LHR
London Heathrow
28 Apr - 12 May
£284pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
MIA
Miami
MIA
Miami
Air Canada
 
1 STOP
LHR
London Heathrow
28 Apr - 12 May
£285pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
MIA
Miami
MIA
Miami
Air Canada
   
2 STOPS
LHR
London Heathrow

Heathrow to Key Biscayne 2021 flight deals

28 Apr - 5 May
£282pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
MIA
Miami
MIA
Miami
Air Canada
 
1 STOP
LHR
London Heathrow
28 Apr - 12 May
£284pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
MIA
Miami
MIA
Miami
Air Canada
 
1 STOP
LHR
London Heathrow
28 Apr - 12 May
£285pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
MIA
Miami
MIA
Miami
Air Canada
   
2 STOPS
LHR
London Heathrow

Direct flights to Key Biscayne from Heathrow

28 Apr - 5 May
£307pp
LHR
London Heathrow
Finnair
Direct
MIA
Miami
MIA
Miami
Finnair
Direct
LHR
London Heathrow
28 Apr - 12 May
£307pp
LHR
London Heathrow
Virgin Atlantic
Direct
MIA
Miami
MIA
Miami
Virgin Atlantic
Direct
LHR
London Heathrow
28 Apr - 5 May
£310pp
LHR
London Heathrow
Virgin Atlantic
Direct
MIA
Miami
MIA
Miami
Virgin Atlantic
Direct
LHR
London Heathrow

Last-minute flights from Heathrow to Key Biscayne

8 Mar - 16 Mar
£366pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
MIA
Miami
MIA
Miami
Air Canada
   
2 STOPS
LHR
London Heathrow
8 Mar - 16 Mar
£373pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
MIA
Miami
MIA
Miami
Air Canada
   
2 STOPS
LHR
London Heathrow
10 Mar - 24 Mar
£385pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
MIA
Miami
MIA
Miami
Air Canada
   
2 STOPS
LHR
London Heathrow

One-way flights to Key Biscayne from Heathrow

06:00 - 18:51
Virgin Atlantic
1 stop
16h 51m
LHR - MIA
Virgin Atlantic
£224
Travel2Be
05:15 - 11:10
Multiple Airlines
3 stops
34h 55m
LHR - MIA
Multiple Airlines
£225
Gotogate
02:30 - 11:10
Lufthansa
1 stop
13h 40m
LHR - MIA
Lufthansa
£228
Lufthansa

Related info for your journey

Flight FAQs

From Heathrow to Key Biscayne

Are flight prices decreasing from Heathrow to Miami due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Heathrow and Miami for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from London Heathrow to Miami to control the spread of COVID-19?

New policies can now be found on Delta and Alitalia to help keep travellers safe while flying. Some of the new policies that have been implemented to accommodate travellers flying from London Heathrow to Miami are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from London Heathrow to Miami have flexible cancellations due to COVID-19?

Some of our airline partners flying from London Heathrow to Miami have new flexible policies in place due to COVID-19. British Airways, Virgin Atlantic, and American Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like British Airways with this kind of flexibility.

Can I find flights from Heathrow to Key Biscayne for under £287 on Cheapflights?

Yes, there are multiple flights from Heathrow to Key Biscayne for under £287. The cheapest flight booked recently is on Multiple Airlines for just £282, but on average you can expect to pay £296.

Are there direct flights from Heathrow to Key Biscayne for under £359 on Cheapflights?

Cheapflights has 20 direct flights from Heathrow to Key Biscayne under £359. A good price for a direct flight from Heathrow to Key Biscayne is less than £334.

Are there last-minute flights available from Heathrow to Key Biscayne for under £431?

There are currently 20+ open flights from Heathrow to Key Biscayne within the next 7 days for less than £431.

Does it rain more in Heathrow or Miami?

The rainfall in Heathrow is generally more than the rainfall in Miami. This will continue over the next 22 days.

Is Heathrow weather warmer or cooler than Miami?

Our data indicates that the weather will be 33 °C on average in the month of July. The temperature in Miami is typically hotter than in Heathrow. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long does is the flight from Heathrow to Key Biscayne?

Departing from Heathrow to Key Biscayne will take you 9h 20m. This flight may include one or multiple stops.

What are the cheapest airlines to flying from Heathrow to Key Biscayne return?

Air Canada, at £302, was found to be the cheapest airline from Heathrow to Key Biscayne.Alternate airlines flying return to your destination include Iberia and Finnair. Air Canada is 18% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Heathrow to Key Biscayne one-way?

To fly one-way, consider booking your trip with Virgin Atlantic, which is currently one of the cheapest options available, starting at £213. SWISS flights start at £225 while deals on Air Canada start at £226 one-way.

Alternative routes for Heathrow to Key Biscayne

Destination information for Key Biscayne

Today's exchange rate
£1 = $1.40
Flight duration
9h 01m
Average temperature for March in Key Biscayne
28.0 °C
Avg rainfall for March in Key Biscayne
67.0 mm

Airports servicing London

Airports servicing Miami

Top 10 airlines flying from Heathrow to Key Biscayne

Airline Cheapest Average Flexibility On-time COVID-19 safety
Austrian Airlines
£354 £565 No cancel fee 78%
Search Austrian Airlines flights
Norwegian
£362 £565 No cancel fee 74%
Search Norwegian flights
Lufthansa
£333 £567 No cancel fee 76%
Search Lufthansa flights
SWISS
£348 £570 No cancel fee 79%
Search SWISS flights
KLM
£348 £575 No cancel fee 75%
Search KLM flights
TAP AIR PORTUGAL
£397 £578 No cancel fee N/A
Search TAP AIR PORTUGAL flights
Air Canada
£363 £592 No cancel fee 67%
Search Air Canada flights
Norwegian Air UK
£327 £597 No cancel fee N/A
Search Norwegian Air UK flights
Aer Lingus
£550 £704 No cancel fee N/A
Search Aer Lingus flights
Brussels Airlines
£438 £720 No cancel fee N/A
Search Brussels Airlines flights

Hourly flight availability from Heathrow to Key Biscayne

Afternoon Midday to 6 PM 100% of flight departures
Early morning Midnight to 6 AM 0% of flight departures
Morning 6 AM to midday 0% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Heathrow to Key Biscayne
Sunday
5 daily flights
Monday
5 daily flights
Tuesday
5 daily flights
Wednesday
5 daily flights
Thursday
5 daily flights
Friday
5 daily flights
Saturday
5 daily flights
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