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Cheap flights from Miami to London Heathrow Airport from C$ 652

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LHR
6 Aug — 13 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 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 7 July 2026.

Thu 20/812:17 p.m.
MIA
-
LHR
2 stops16h 03m
United Airlines
Tue 25/88:45 a.m.
LHR
-
MIA
1 stop13h 40m
United Airlines
Deal found 3/7C$ 1,392
Wed 22/74:20 p.m.
MIA
-
LHR
1 stop13h 00m
TAP AIR PORTUGAL
Mon 24/87:50 p.m.
LHR
-
MIA
1 stop23h 45m
TAP AIR PORTUGAL
Deal found 3/7C$ 1,394
Fri 25/127:55 p.m.
MIA
-
LHR
2 stops32h 40m
Scandinavian Airlines
Mon 4/17:30 p.m.
LHR
-
MIA
1 stop27h 35m
Scandinavian Airlines
Deal found 4/7C$ 1,396
Mon 2/1110:00 p.m.
MIA
-
LHR
Nonstop8h 30m
British Airways
Sun 29/119:45 a.m.
LHR
-
MIA
Nonstop9h 55m
British Airways
Deal found 2/7C$ 1,397
Fri 31/711:25 a.m.
MIA
-
LHR
1 stop13h 55m
Delta
Thu 1/108:40 a.m.
LHR
-
MIA
2 stops19h 35m
Delta
Deal found 3/7C$ 1,399
Sun 16/88:45 a.m.
MIA
-
LHR
1 stop17h 30m
United Airlines
Sun 30/87:25 a.m.
LHR
-
MIA
2 stops20h 09m
United Airlines
Deal found 6/7C$ 1,400
Sun 9/811:50 a.m.
MIA
-
LHR
1 stop13h 55m
Delta
Tue 18/83:50 p.m.
LHR
-
MIA
Nonstop9h 55m
Delta
Deal found 5/7C$ 1,401
Wed 26/85:00 p.m.
MIA
-
LHR
Nonstop8h 55m
British Airways
Thu 3/99:55 a.m.
LHR
-
MIA
Nonstop9h 35m
British Airways
Deal found 6/7C$ 1,403
Wed 26/87:00 a.m.
MIA
-
LHR
2 stops22h 00m
United Airlines
Sun 6/97:25 a.m.
LHR
-
MIA
2 stops20h 09m
United Airlines
Deal found 6/7C$ 1,404
Wed 16/121:00 p.m.
MIA
-
LHR
2 stops17h 20m
United Airlines
Mon 4/11:45 p.m.
LHR
-
MIA
1 stop30h 00m
United Airlines
Deal found 5/7C$ 1,406
Mon 14/127:00 a.m.
MIA
-
LHR
1 stop18h 50m
Delta
Tue 5/18:40 a.m.
LHR
-
MIA
2 stops17h 21m
Delta
Deal found 4/7C$ 1,407

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 7 July 2026.

Round-trip from

C$ 1,392

One-way from

C$ 652

Popular in

June

Cheapest in

September

Average price

C$ 1,684
United Airlines
  • United Airlines
  • 28/8-14/9
  • 3 total stops
  • 93h 14m total
  • Miami to London
Search Deals
KLM
  • KLM
  • 23/9
  • Nonstop
  • 9h 00m total
  • Miami to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (C$ 557 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 73 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 7 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 round-trip

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 21/8

5:01 p.m.-6:45 a.m.

2 stops56h 44m

London Heathrow

Sun 30/8

12:10 p.m.-5:30 p.m.

1 stop34h 20m

C$ 1,416

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 12/9

6:36 p.m.-9:40 p.m.

1 stop22h 04m

London Heathrow

Sat 26/9

12:15 p.m.-4:55 p.m.

Nonstop9h 40m

C$ 1,427

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 3/9

4:55 p.m.-9:00 a.m.

1 stop11h 05m

London Heathrow

Wed 9/9

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

Nonstop9h 55m

C$ 1,433

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 27/8

12:17 p.m.-10:25 a.m.

2 stops17h 08m

London Heathrow

Mon 7/9

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

1 stop34h 15m

C$ 1,446

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 21/8

5:37 p.m.-10:25 a.m.

1 stop11h 48m

London Heathrow

Thu 27/8

12:15 p.m.-11:44 p.m.

2 stops16h 29m

C$ 1,446

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 23/9

5:37 p.m.-10:25 a.m.

1 stop11h 48m

London Heathrow

Sat 10/10

12:15 p.m.-11:44 p.m.

2 stops16h 29m

C$ 1,447

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 16/8

11:24 a.m.-2:35 p.m.

2 stops22h 11m

London Heathrow

Fri 21/8

7:05 a.m.-11:37 p.m.

2 stops21h 32m

C$ 1,453

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 24/9

4:52 p.m.-12:15 p.m.

1 stop14h 23m

London Heathrow

Sun 4/10

12:15 p.m.-4:55 p.m.

Nonstop9h 40m

C$ 1,498
Quickest round-trip

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 21/11

10:20 p.m.-12:05 p.m.

Nonstop8h 45m

London Heathrow

Sat 28/11

9:45 a.m.-2:40 p.m.

Nonstop9h 55m

C$ 1,502

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 30/7

7:07 a.m.-10:00 a.m.

2 stops21h 53m

London Heathrow

Tue 18/8

6:40 p.m.-5:25 p.m.

1 stop27h 45m

C$ 1,541

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 23 resultsSorted by cheapest first
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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?

To ensure you get the cheapest price possible for a flight from Miami to London Heathrow Airport, you should look to book at least 68 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, September is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of C$ 859). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of C$ 1,778). 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 7 July 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.

How much does it cost to fly round-trip from Miami to London Heathrow Airport?

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 23 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 17h 08m. Fly via Finnair, Scandinavian Airlines, 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 Aer Lingus (86%), KLM (85%) or Air France (85%) 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, September is the cheapest month in which you can book a flight from Miami to London Heathrow Airport (average of C$ 859). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of C$ 1,778). 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
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Hounslow
Slough
Marlow
Cobham
Leamington Spa
Northampton
Watford
High Wycombe
Stratford-upon-Avon
Moreton-in-Marsh

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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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