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Cheap flights from Miami to London Heathrow Airport from C$ 517

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 18/1. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LHR
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Miami to London Heathrow are usually found in February or September, booked 55 days in advance, depart on a Thursday or Saturday 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 8 January 2026.

Round-trip from

C$ 811

One-way from

C$ 517

Popular in

December

Cheapest in

February

Average price

C$ 1,009
British Airways
  • British Airways
  • 22/2-3/3
  • 2 total stops
  • 31h 15m total
  • Miami to London
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British Airways
  • British Airways
  • 18/1
  • Nonstop
  • 8h 30m total
  • Miami to London
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Highest demand for flights based on searches. 8% potential increase in price (C$ 136 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 40 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 2026.

Sun 22/24:05 p.m.MIA - LHR
1 stop17h 00mBritish Airways
Tue 3/36:00 a.m.LHR - MIA
1 stop14h 15mBritish Airways
Deal found 7/1C$ 811
Sun 5/49:20 p.m.MIA - LHR
Nonstop8h 45mBritish Airways
Wed 22/46:30 a.m.LHR - MIA
1 stop15h 15mBritish Airways
Deal found 7/1C$ 813
Sun 18/13:37 p.m.MIA - LHR
1 stop11h 28mDelta
Tue 27/16:30 a.m.LHR - MIA
1 stop13h 20mDelta
Deal found 8/1C$ 814
Mon 6/410:40 p.m.MIA - LHR
Nonstop8h 55mBritish Airways
Thu 16/46:15 a.m.LHR - MIA
1 stop14h 40mBritish Airways
Deal found 6/1C$ 817
Sun 25/18:15 a.m.MIA - LHR
1 stop17h 10mDelta
Fri 6/39:00 a.m.LHR - MIA
1 stop13h 40mDelta
Deal found 6/1C$ 818
Sun 25/15:10 p.m.MIA - LHR
Nonstop8h 50mDelta
Wed 4/29:25 a.m.LHR - MIA
Nonstop10h 25mDelta
Deal found 7/1C$ 821
Sun 1/25:10 p.m.MIA - LHR
Nonstop8h 50mDelta
Wed 11/22:00 p.m.LHR - MIA
Nonstop10h 25mDelta
Deal found 8/1C$ 822
Mon 16/210:58 a.m.MIA - LHR
1 stop15h 32mUnited Airlines
Sun 22/212:05 p.m.LHR - MIA
1 stop31h 35mUnited Airlines
Deal found 8/1C$ 824
Mon 2/210:00 p.m.MIA - LHR
Nonstop8h 45mDelta
Tue 10/22:35 p.m.LHR - MIA
Nonstop10h 25mDelta
Deal found 7/1C$ 825
Wed 8/412:50 p.m.MIA - LHR
1 stop13h 50mUnited Airlines
Thu 16/48:40 a.m.LHR - MIA
1 stop13h 45mUnited Airlines
Deal found 7/1C$ 827

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 8 January 2026.
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 6/4

10:40 p.m.-12:35 p.m.

Nonstop8h 55m

London Heathrow

Thu 16/4

6:15 a.m.-3:55 p.m.

1 stop14h 40m

C$ 817

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 17/3

6:10 p.m.-7:00 a.m.

Nonstop8h 50m

London Heathrow

Tue 24/3

9:25 a.m.-3:50 p.m.

Nonstop10h 25m

C$ 821

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 4/3

5:10 p.m.-7:00 a.m.

Nonstop8h 50m

London Heathrow

Tue 24/3

9:25 a.m.-3:50 p.m.

Nonstop10h 25m

C$ 821

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 16/2

10:58 a.m.-7:30 a.m.

1 stop15h 32m

London Heathrow

Sun 22/2

12:05 p.m.-2:40 p.m.

1 stop31h 35m

C$ 824

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 4/2

3:25 p.m.-11:40 a.m.

1 stop15h 15m

London Heathrow

Wed 11/2

2:00 p.m.-7:25 p.m.

Nonstop10h 25m

C$ 828

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 4/5

6:15 a.m.-7:40 a.m.

1 stop20h 25m

London Heathrow

Thu 14/5

12:10 p.m.-5:25 p.m.

1 stop34h 15m

C$ 828

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 27/4

6:05 p.m.-8:05 a.m.

Nonstop9h 00m

London Heathrow

Thu 14/5

6:30 a.m.-2:45 p.m.

1 stop13h 15m

C$ 835

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 28/4

3:32 p.m.-8:50 a.m.

1 stop12h 18m

London Heathrow

Tue 12/5

6:30 a.m.-2:45 p.m.

1 stop13h 15m

C$ 842

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 27/4

5:30 p.m.-12:05 p.m.

1 stop13h 35m

London Heathrow

Tue 12/5

6:30 a.m.-2:45 p.m.

1 stop13h 15m

C$ 842

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 26/4

10:40 p.m.-12:35 p.m.

Nonstop8h 55m

London Heathrow

Fri 15/5

3:00 p.m.-7:40 p.m.

Nonstop9h 40m

C$ 843

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/1

Showing 1-10 of 23 results
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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.
Estimated round-trip 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 round-trip flight from Miami to Heathrow. Price data was last updated on 2 January 2026.

To ensure you get the cheapest price possible for a flight from Miami to London Heathrow Airport, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 C$ 391). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of C$ 845). 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 January 2026.

When flying from Miami to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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?

    Located just 9.8 km from the city centre, Miami is the airport most travellers will use when flying to London Heathrow from Miami. Booking flights from Miami (MIA) to London Heathrow should be relatively easy as there are 22 daily outbound flights to London Heathrow from 0 different airlines.

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

    There are many flights that can get you from Miami to London Heathrow Airport in 8h 50m. Fly via British Airways, KLM, or United Airlines to get the fastest option. The distance between Miami and London Heathrow Airport is about 7104 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Miami to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Miami to London Heathrow Airport consider choosing KLM (88%), Air France (88%) or Delta (88%) as they are the most reliable in getting you off to your destination on time.

  • 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 vacation 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 C$ 391). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of C$ 845). 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
Sutton
Twickenham
Gatwick
Slough
Marlow
Milton Keynes
Leamington Spa
Romford
Watford
Bedford
Luton
Stratford-upon-Avon
Hounslow

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Certainly. Search results for flights to Heathrow from Miami shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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