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Cheap flights from Miami to London Heathrow Airport from £340

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LHR
17 Aug — 24 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 Monday or Saturday 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 18 July 2026.

Sun 2/821:45
MIA
-
LHR
2 stops38h 30m
Multiple Airlines
Wed 19/815:00
LHR
-
MIA
1 stop34h 50m
Multiple Airlines
Deal found 17/7£694
Sun 16/807:10
MIA
-
LHR
2 stops28h 55m
Multiple Airlines
Mon 31/820:05
LHR
-
MIA
1 stop26h 20m
Multiple Airlines
Deal found 18/7£695
Fri 7/821:45
MIA
-
LHR
1 stop15h 00m
Multiple Airlines
Wed 19/815:00
LHR
-
MIA
1 stop34h 50m
Multiple Airlines
Deal found 16/7£696
Wed 5/821:45
MIA
-
LHR
2 stops15h 30m
Multiple Airlines
Wed 19/815:00
LHR
-
MIA
1 stop34h 50m
Multiple Airlines
Deal found 18/7£696
Sat 29/821:45
MIA
-
LHR
1 stop27h 50m
Multiple Airlines
Fri 11/906:00
LHR
-
MIA
1 stop16h 25m
Multiple Airlines
Deal found 17/7£697
Sat 15/818:19
MIA
-
LHR
1 stop22h 21m
Finnair
Thu 27/812:15
LHR
-
MIA
Nonstop9h 45m
Finnair
Deal found 18/7£698
Tue 18/819:40
MIA
-
LHR
2 stops18h 10m
Multiple Airlines
Wed 2/908:40
LHR
-
MIA
1 stop13h 45m
Multiple Airlines
Deal found 18/7£699
Wed 5/816:20
MIA
-
LHR
1 stop13h 00m
TAP AIR PORTUGAL
Mon 17/819:50
LHR
-
MIA
1 stop23h 45m
TAP AIR PORTUGAL
Deal found 16/7£699
Sun 16/807:10
MIA
-
LHR
2 stops32h 50m
Air Canada
Mon 31/817:50
LHR
-
MIA
2 stops33h 21m
Air Canada
Deal found 18/7£700
Wed 2/908:15
MIA
-
LHR
1 stop17h 15m
Air Canada
Tue 15/914:05
LHR
-
MIA
2 stops29h 41m
Air Canada
Deal found 15/7£701
Sun 16/807:03
MIA
-
LHR
2 stops21h 32m
Scandinavian Airlines
Sun 30/819:30
LHR
-
MIA
2 stops34h 17m
Scandinavian Airlines
Deal found 14/7£702
Sun 16/807:03
MIA
-
LHR
2 stops21h 32m
Scandinavian Airlines
Tue 1/919:50
LHR
-
MIA
2 stops32h 47m
Scandinavian Airlines
Deal found 17/7£702

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 18 July 2026.

Round-trip from

£694

One-way from

£340

Popular in

June

Cheapest in

September

Average price

£906

Good round-trip deal

£768 or less

Good one-way deal

£297 or less
2/8-19/8
  • 2/8-19/8
  • 3 total stops
  • 73h 20m total
  • Miami to London
Search Deals
1/8
  • 1/8
  • 3 total stops
  • 41h 26m total
  • Miami to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£152 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 18 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
Fastest return journey

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 6/9

17:00-06:55

Nonstop8h 55m

London Heathrow

Fri 18/9

09:55-14:30

Nonstop9h 35m

£707

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 23/9

17:00-06:55

Nonstop8h 55m

London Heathrow

Thu 1/10

09:55-14:35

Nonstop9h 40m

£707

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 25/8

07:00-07:15

1 stop19h 15m

London Heathrow

Mon 7/9

12:10-17:25

1 stop34h 15m

£716

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 6/9

15:27-08:50

1 stop12h 23m

London Heathrow

Sat 19/9

06:30-14:45

1 stop13h 15m

£722

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 3/9

11:26-05:55

1 stop13h 29m

London Heathrow

Wed 9/9

08:40-17:25

1 stop13h 45m

£726

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 2/9

13:44-06:55

1 stop12h 11m

London Heathrow

Sat 12/9

08:45-17:25

1 stop13h 40m

£726

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 6/11

17:10-06:45

Nonstop8h 35m

London Heathrow

Sun 8/11

09:45-14:40

Nonstop9h 55m

£728

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 24/9

13:25-06:30

2 stops36h 05m

London Heathrow

Wed 7/10

12:10-17:25

1 stop34h 15m

£728

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 1/10

13:26-18:40

2 stops24h 14m

London Heathrow

Mon 5/10

12:10-17:25

1 stop34h 15m

£740

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 10/8

11:12-10:00

2 stops17h 48m

London Heathrow

Wed 19/8

08:40-17:25

1 stop13h 45m

£773

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 21 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 £456). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of £930). 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 18 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 18 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
1,541 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Boarding

7.8

Food

7.3

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
1,541 reviews
KLM
7.8
Good
1,541 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Boarding

7.8

Food

7.3

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
693 reviews
KLM
7.8
Good
1,541 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Boarding

7.8

Food

7.3

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
11,829 reviews
KLM
7.8
Good
1,541 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Boarding

7.8

Food

7.3

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
8,122 reviews
KLM
7.8
Good
1,541 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Boarding

7.8

Food

7.3

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 18 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 £404, 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 37% 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 £276 and £294 on British Airways and American Airlines, 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 (91%), KLM (84%), Air France (84%).

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

    While on average a flight from Miami to London Heathrow Airport is generally £2,254, our data shows the cheapest flight currently is £234. When looking at the most popular route, (Miami - London Heathrow), you can expect to pay £417 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 £456). Flying from Miami to London Heathrow Airport in June is currently the most expensive (average of £930). 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
Gatwick
Wembley
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Watford
Eastbourne
Swindon
Southend-on-Sea
Poole
Kingston upon Thames
Southall
Aylesbury

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 18 July 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£404Average£600FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£404Average£770FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£407Average£823FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£618Average£768FlexibilityNo 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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