Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Miami to London Heathrow Airport from £123

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LHR
20 Jul — 27 Jul1
1 adult

Cheapflights Tip: The best prices from Miami to London Heathrow are usually found in February or October, booked 40 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 15 July 2025.

Round-trip from

£365

One-way from

£123

Popular in

December

Cheapest in

February

Average price

£599

Good round-trip deal

£460 or less

Good one-way deal

£324 or less
United Airlines
  • United Airlines
  • 18/8-26/8
  • 2 total stops
  • 28h 53m total
  • Miami to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 30/7
  • 1 total stop
  • 13h 05m total
  • Miami to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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

Find flight deals from Miami to Heathrow

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 15 July 2025.

Mon 18/819:25MIA - LHR
Nonstop9h 00mVirgin Atlantic
Tue 26/809:00LHR - MIA
1 stop16h 50mVirgin Atlantic
Deal found 13/7£365
Wed 27/807:55MIA - LHR
1 stop17h 35mAir Canada
Wed 3/912:40LHR - MIA
2 stops37h 54mAir Canada
Deal found 13/7£366
Mon 1/1219:30MIA - LHR
1 stop11h 30mBritish Airways
Wed 17/1211:25LHR - MIA
1 stop14h 20mBritish Airways
Deal found 14/7£367
Wed 13/820:40MIA - LHR
Nonstop8h 55mAmerican Airlines
Wed 27/808:45LHR - MIA
1 stop13h 30mAmerican Airlines
Deal found 13/7£368
Tue 5/816:53MIA - LHR
1 stop13h 42mUnited Airlines
Fri 29/808:40LHR - MIA
1 stop13h 50mUnited Airlines
Deal found 13/7£368
Wed 20/819:30MIA - LHR
Nonstop8h 55mIberia
Wed 10/920:00LHR - MIA
1 stop22h 10mIberia
Deal found 13/7£369
Tue 5/807:55MIA - LHR
1 stop17h 35mMultiple Airlines
Thu 28/808:40LHR - MIA
1 stop13h 50mMultiple Airlines
Deal found 13/7£370
Mon 18/819:30MIA - LHR
1 stop13h 00mDelta
Tue 26/806:15LHR - MIA
1 stop13h 00mDelta
Deal found 13/7£378
Wed 6/819:25MIA - LHR
Nonstop9h 00mAir France
Wed 27/810:45LHR - MIA
Nonstop10h 00mAir France
Deal found 13/7£381
Mon 18/820:40MIA - LHR
Nonstop8h 55mFinnair
Tue 26/813:40LHR - MIA
Nonstop9h 35mFinnair
Deal found 13/7£384
Fri 28/1117:15MIA - LHR
1 stop12h 35mIcelandair
Tue 9/1212:15LHR - MIA
1 stop13h 40mIcelandair
Deal found 14/7£388
Wed 3/919:30MIA - LHR
1 stop13h 00mKLM
Fri 19/915:15LHR - MIA
1 stop14h 08mKLM
Deal found 14/7£396

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 15 July 2025.
Use the filters below to find and compare flights from Miami to London Heathrow Airport that are best for you.

Fly from

Miami

Fly to

Heathrow

Route

Depart

Return

Price

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 18/8

16:53-11:35

1 stop13h 42m

London Heathrow

Tue 26/8

09:30-19:41

1 stop15h 11m

£365

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 27/8

07:55-06:30

1 stop17h 35m

London Heathrow

Wed 3/9

12:40-21:34

2 stops37h 54m

£366

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 1/12

19:30-12:00

1 stop11h 30m

London Heathrow

Wed 17/12

11:25-20:45

1 stop14h 20m

£367

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 13/8

20:40-10:35

Nonstop8h 55m

London Heathrow

Wed 27/8

08:45-17:15

1 stop13h 30m

£368

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 20/8

19:30-09:25

Nonstop8h 55m

London Heathrow

Wed 10/9

20:00-13:10

1 stop22h 10m

£369

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 5/8

07:55-06:30

1 stop17h 35m

London Heathrow

Thu 28/8

08:40-17:30

1 stop13h 50m

£370

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 18/8

22:30-12:15

Nonstop8h 45m

London Heathrow

Tue 26/8

10:45-15:45

Nonstop10h 00m

£371

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 18/8

15:11-08:50

1 stop12h 39m

London Heathrow

Tue 26/8

06:15-14:15

1 stop13h 00m

£378

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 6/8

19:25-09:25

Nonstop9h 00m

London Heathrow

Wed 27/8

10:45-15:45

Nonstop10h 00m

£381

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 18/8

20:40-10:35

Nonstop8h 55m

London Heathrow

Tue 26/8

13:40-18:15

Nonstop9h 35m

£384

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 14 results
1
2

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?

Use this chart to determine the optimal time to book a return flight from Miami to Heathrow. Price data was last updated on 11 July 2025.

Booking 40 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, January is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of £112). Flying from Miami to London Heathrow Airport in August is currently the most expensive (average of £164). 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 15 July 2025.

A simple way to save on the total cost of your ticket is to fly from Miami to London Heathrow Airport at midday. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the morning.

Weekly flight availability from Miami to London Heathrow Airport

Explore weekly flight availability from Miami to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 July 2025.

The most flights from MIA to LHR are scheduled on a Monday (28 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (28 on average).

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 15 July 2025.
Read through reviews of airlines operating flights from Miami to London Heathrow Airport, such as Delta, KLM, andFinnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,956 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very Good
7,956 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,858 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

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 28 flights from Miami to London Heathrow per day from 7 different airlines.

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

    United Airlines, at £365, was found to be the cheapest airline from Miami to London Heathrow Airport.Alternate airlines flying return to your destination include Air Canada and Iberia. United Airlines is currently priced 32% below the average price you’ll pay for this route.

  • 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 (87%), Delta (87%), Aeromexico (87%).

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

    While on average a flight from Miami to London Heathrow Airport is generally £1,434, our data shows the cheapest flight currently is £230. When looking at the most popular route, (Miami - London Heathrow), you can expect to pay £338 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, January is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of £112). Flying from Miami to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Milton Keynes
Croydon
Hounslow
Deal
Northampton
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Hayes
Ipswich
Southend-on-Sea
Folkestone
Watford
Winchester
Swindon
Maidstone

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.
Orlando to Heathrow flights
Orlando to Gatwick flights
Tampa to Heathrow flights
Miami to Gatwick flights
Orlando to London City flights
Miami to London City flights
Miami to Stansted flights
Tampa to Gatwick flights
Miami to Luton flights
Fort Lauderdale to Heathrow flights
Jacksonville to Heathrow flights
Orlando to Stansted flights
Fort Lauderdale to Gatwick flights
Orlando to Luton flights
Jacksonville to Gatwick flights
West Palm Beach to Heathrow flights
Pensacola to Heathrow flights
West Palm Beach to Gatwick flights
Fort Myers to Heathrow flights
Tampa to Stansted flights
Fort Lauderdale to London City flights
Fort Myers to Gatwick flights
Sarasota to Heathrow flights
Tampa to Luton flights
Tallahassee to Heathrow flights
Valparaiso to Heathrow flights
Sarasota to Gatwick flights
Pensacola to Gatwick flights
Daytona Beach to Heathrow flights
Gainesville to Heathrow flights
Fort Myers to Stansted flights
Panama City to Heathrow flights
Orlando Sanford Intl to Gatwick flights
Key West to Heathrow flights
Tallahassee to Gatwick flights

Top 7 airlines flying from Miami to Heathrow

Discover the top 7 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 15 July 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£296Average£465FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£299Average£516FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£329Average£561FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£359Average£597FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapest£379Average£555FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
FinnairCheapest£478Average£817FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£528Average£630FlexibilityNo cancel feeOn-time77%
Search Iberia 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights