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Cheap flights from Miami to London Heathrow Airport from C$ 520

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LHR
26 Mar — 2 Apr1
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 55 days in advance, depart on a Wednesday or Monday 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 24 February 2026.

Wed 15/49:45 p.m.
MIA
-
LHR
1 stop17h 20m
LEVEL
Tue 28/48:50 p.m.
LHR
-
MIA
1 stop28h 10m
LEVEL
Deal found 20/2C$ 899
Mon 13/49:45 p.m.
MIA
-
LHR
1 stop17h 20m
LEVEL
Mon 20/49:55 a.m.
LHR
-
MIA
1 stop15h 05m
LEVEL
Deal found 23/2C$ 912
Mon 9/36:40 p.m.
MIA
-
LHR
1 stop12h 25m
United Airlines
Mon 16/312:05 p.m.
LHR
-
MIA
1 stop31h 35m
United Airlines
Deal found 20/2C$ 918
Tue 10/36:10 p.m.
MIA
-
LHR
Nonstop8h 50m
Delta
Thu 19/36:30 a.m.
LHR
-
MIA
2 stops20h 48m
Delta
Deal found 22/2C$ 925
Mon 9/311:00 p.m.
MIA
-
LHR
Nonstop8h 45m
Delta
Wed 18/310:00 a.m.
LHR
-
MIA
2 stops17h 24m
Delta
Deal found 20/2C$ 926
Mon 5/109:45 p.m.
MIA
-
LHR
1 stop30h 25m
LEVEL
Wed 14/109:55 a.m.
LHR
-
MIA
1 stop15h 05m
LEVEL
Deal found 23/2C$ 927
Wed 8/49:45 p.m.
MIA
-
LHR
1 stop30h 25m
LEVEL
Wed 15/49:55 a.m.
LHR
-
MIA
1 stop15h 05m
LEVEL
Deal found 22/2C$ 929
Wed 11/34:49 p.m.
MIA
-
LHR
1 stop11h 36m
United Airlines
Tue 17/36:50 a.m.
LHR
-
MIA
2 stops19h 34m
United Airlines
Deal found 23/2C$ 930
Tue 1/91:25 p.m.
MIA
-
LHR
1 stop12h 30m
United Airlines
Wed 16/98:40 a.m.
LHR
-
MIA
1 stop13h 45m
United Airlines
Deal found 22/2C$ 933
Mon 4/56:15 a.m.
MIA
-
LHR
1 stop24h 20m
United Airlines
Tue 12/58:45 a.m.
LHR
-
MIA
1 stop13h 40m
United Airlines
Deal found 20/2C$ 934
Tue 10/31:30 p.m.
MIA
-
LHR
2 stops15h 40m
United Airlines
Tue 17/36:50 a.m.
LHR
-
MIA
2 stops19h 34m
United Airlines
Deal found 22/2C$ 936

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 24 February 2026.

Round-trip from

C$ 899

One-way from

C$ 520

Popular in

December

Cheapest in

September

Average price

C$ 881
LEVEL
  • LEVEL
  • 15/4-28/4
  • 2 total stops
  • 45h 30m total
  • Miami to London
Search Deals
7/4
  • 7/4
  • 3 total stops
  • 27h 50m total
  • Miami to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 24 February 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 4/5

6:15 a.m.-11:35 a.m.

1 stop24h 20m

London Heathrow

Tue 12/5

8:45 a.m.-5:25 p.m.

1 stop13h 40m

C$ 934

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 9/3

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

Nonstop8h 50m

London Heathrow

Tue 31/3

3:15 p.m.-12:52 a.m.

1 stop14h 37m

C$ 963

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 20/4

2:20 p.m.-9:20 a.m.

1 stop14h 00m

London Heathrow

Tue 28/4

2:05 p.m.-1:14 p.m.

2 stops28h 09m

C$ 963

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 22/3

10:25 p.m.-11:10 a.m.

Nonstop8h 45m

London Heathrow

Tue 7/4

10:55 a.m.-3:30 p.m.

Nonstop9h 35m

C$ 971

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 11/3

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

Nonstop8h 50m

London Heathrow

Mon 23/3

4:35 p.m.-10:18 a.m.

1 stop21h 43m

C$ 1,031

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 29/3

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

Nonstop9h 00m

London Heathrow

Sun 5/4

3:50 p.m.-8:45 p.m.

Nonstop9h 55m

C$ 1,041

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 6/4

10:26 a.m.-7:15 a.m.

1 stop15h 49m

London Heathrow

Mon 13/4

10:55 a.m.-3:30 p.m.

Nonstop9h 35m

C$ 1,046

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 22/3

10:25 p.m.-11:10 a.m.

Nonstop8h 45m

London Heathrow

Sun 12/4

9:40 a.m.-6:59 p.m.

1 stop14h 19m

C$ 1,053

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 7/3

11:34 a.m.-6:20 a.m.

1 stop13h 46m

London Heathrow

Sat 14/3

2:45 p.m.-9:10 p.m.

Nonstop10h 25m

C$ 1,093

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 20/3

11:23 a.m.-6:50 a.m.

1 stop15h 27m

London Heathrow

Mon 23/3

12:40 p.m.-11:24 p.m.

1 stop14h 44m

C$ 1,174

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/2

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 20 February 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, March is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of C$ 491). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of C$ 834). 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 24 February 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 31 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 United Airlines, Delta, or KLM 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 (84%), Air France (84%) or Delta (84%) 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, March is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of C$ 491). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of C$ 834). 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
Cobham
Leamington Spa
Romford
Watford
Bedford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow

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Can Cheapflights find flights from Miami to Heathrow with no change fees?

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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Of course! You can now track prices for flights from Miami to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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