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Cheap flights from Miami to London Heathrow Airport from £343

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LHR
7 Aug — 14 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Miami to London Heathrow are usually found in September or February, booked 69 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

Cheap flight deals from Miami to Heathrow

Enter your travel dates to find the best prices.

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 8 July 2026.

Wed 5/822:40
MIA
-
LHR
Nonstop8h 55m
Finnair
Wed 12/812:15
LHR
-
MIA
Nonstop9h 45m
Finnair
Deal found 7/7£721
Sun 23/817:00
MIA
-
LHR
Nonstop8h 55m
Iberia
Sat 5/911:30
LHR
-
MIA
1 stop13h 35m
Iberia
Deal found 7/7£722
Wed 19/811:50
MIA
-
LHR
2 stops24h 50m
Scandinavian Airlines
Wed 26/819:50
LHR
-
MIA
2 stops32h 47m
Scandinavian Airlines
Deal found 7/7£723
Fri 21/819:45
MIA
-
LHR
Nonstop8h 40m
Iberia
Fri 28/811:30
LHR
-
MIA
1 stop13h 35m
Iberia
Deal found 7/7£724
Tue 4/812:30
MIA
-
LHR
2 stops16h 05m
Multiple Airlines
Fri 21/814:05
LHR
-
MIA
2 stops27h 08m
Multiple Airlines
Deal found 7/7£725
Thu 20/818:05
MIA
-
LHR
Nonstop9h 00m
Delta
Thu 10/906:30
LHR
-
MIA
1 stop13h 15m
Delta
Deal found 7/7£726
Mon 28/1216:44
MIA
-
LHR
1 stop11h 36m
British Airways
Thu 7/111:50
LHR
-
MIA
Nonstop10h 00m
British Airways
Deal found 7/7£727
Fri 21/817:00
MIA
-
LHR
Nonstop8h 55m
British Airways
Fri 28/809:55
LHR
-
MIA
Nonstop9h 35m
British Airways
Deal found 7/7£727
Wed 12/803:50
MIA
-
LHR
1 stop13h 10m
TAP AIR PORTUGAL
Fri 21/806:00
LHR
-
MIA
1 stop20h 55m
TAP AIR PORTUGAL
Deal found 7/7£728
Sun 9/816:20
MIA
-
LHR
1 stop15h 25m
TAP AIR PORTUGAL
Tue 18/806:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Deal found 7/7£729
Fri 21/811:30
MIA
-
LHR
1 stop15h 25m
United Airlines
Fri 11/908:40
LHR
-
MIA
1 stop13h 45m
United Airlines
Deal found 7/7£730
Wed 12/813:44
MIA
-
LHR
2 stops23h 56m
Multiple Airlines
Mon 17/820:05
LHR
-
MIA
1 stop26h 20m
Multiple Airlines
Deal found 7/7£730

Find flight deals from Miami to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Miami (MIA) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 8 July 2026.

Round-trip from

£721

One-way from

£343

Popular in

June

Cheapest in

September

Average price

£886

Good round-trip deal

£795 or less

Good one-way deal

£299 or less
Finnair
  • Finnair
  • 5/8-12/8
  • Nonstop
  • 18h 40m total
  • Miami to London
Search Deals
Air Canada
  • Air Canada
  • 5/9
  • 2 total stops
  • 31h 15m total
  • Miami to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£154 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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

Cheapflights Fare Finder

 
Customise your flight search to find flights from Miami to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 8 July 2026.
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 - LHR

MIALHR

Miami

Tue 11/8

18:05-08:05

Nonstop9h 00m

London Heathrow

Tue 18/8

10:55-15:50

Nonstop9h 55m

£734

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 9/9

18:05-08:05

Nonstop9h 00m

London Heathrow

Mon 21/9

10:55-15:50

Nonstop9h 55m

£747
Fastest return journey

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 19/9

17:00-06:55

Nonstop8h 55m

London Heathrow

Wed 30/9

09:55-14:30

Nonstop9h 35m

£747

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 16/9

17:00-06:55

Nonstop8h 55m

London Heathrow

Sat 26/9

09:55-14:30

Nonstop9h 35m

£747

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 3/9

16:55-09:00

1 stop11h 05m

London Heathrow

Wed 9/9

15:50-20:45

Nonstop9h 55m

£753

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 22/9

22:35-12:35

Nonstop9h 00m

London Heathrow

Sat 27/3

15:50-09:24

1 stop21h 34m

£757

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 8/8

20:40-20:40

1 stop19h 00m

London Heathrow

Mon 17/8

08:40-17:30

1 stop13h 50m

£761

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 2/8

18:05-08:05

Nonstop9h 00m

London Heathrow

Sun 16/8

08:55-20:45

1 stop16h 50m

£762

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 28/8

07:00-06:30

2 stops18h 30m

London Heathrow

Tue 1/9

12:10-17:25

1 stop34h 15m

£763

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 19/9

17:00-06:55

Nonstop8h 55m

London Heathrow

Sun 27/9

09:55-14:30

Nonstop9h 35m

£785

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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.
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

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

Booking 68 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 £451). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of £935). 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?

Find hourly flight availability from Miami to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 July 2026.

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

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 8 July 2026.
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
1,534 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

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
1,534 reviews
KLM
7.8
Good
1,534 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

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
7.5
Good
692 reviews
KLM
7.8
Good
1,534 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

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
11,786 reviews
KLM
7.8
Good
1,534 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

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
8,105 reviews
KLM
7.8
Good
1,534 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

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

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?

    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 23 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 55m. 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 £406, was found to be the cheapest airline from Miami to London Heathrow Airport.Alternate airlines flying return to your destination include British Airways and Virgin Atlantic. KLM is currently priced 36% 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 £122. Users have also found prices from £243 and £296 on American Airlines and Virgin Atlantic, 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 (86%), KLM (85%), Air France (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 £1,705, our data shows the cheapest flight currently is £239. When looking at the most popular route, (Miami - London Heathrow), you can expect to pay £502 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 £451). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of £935). 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Croydon
Ilford
Hayes
Brentford
Colchester
Northampton
Watford
Kingston upon Thames
Eastbourne
Swindon
Poole
Southall
Aylesbury
Romford

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.

Top 4 airlines flying from Miami to Heathrow

Discover the top 4 airlines that operate flights from Miami to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 8 July 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£406Average£603FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£406Average£785FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£410Average£823FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£556Average£733FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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