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Cheap flights from Miami to London Heathrow Airport from C$ 346

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 7/7. 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

Cheapflights Tip: The best prices from Miami to London Heathrow are usually found in February or October, booked 73 days in advance, depart on a Monday or Wednesday and return on a Friday

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 21 March 2025.

Round-trip from

C$ 924

One-way from

C$ 346

Popular in

December

Cheapest in

February

Average price

C$ 941

Good one-way deal

C$ 615 or less
JetBlue
  • JetBlue
  • 1/4-7/5
  • 2 total stops
  • 34h 32m total
  • Miami to London
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 7/7
  • 1 total stop
  • 24h 25m total
  • Miami to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 75 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 38 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a one-way flight from Miami to London Heathrow.
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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 21 March 2025.

Wed 19/114:40 p.m.MIA - LHR
1 stop13h 35mSWISS
Sun 23/117:30 p.m.LHR - MIA
2 stops24h 10mSWISS
Deal found 20/3C$ 634
Sun 12/1012:35 a.m.MIA - LHR
1 stop17h 20mTAP AIR PORTUGAL
Fri 31/106:00 a.m.LHR - MIA
1 stop20h 50mTAP AIR PORTUGAL
Deal found 20/3C$ 835
Mon 10/117:45 p.m.MIA - LHR
2 stops20h 35mScandinavian Airlines
Mon 17/117:50 p.m.LHR - MIA
2 stops27h 05mScandinavian Airlines
Deal found 19/3C$ 853
Fri 21/35:54 p.m.MIA - LHR
1 stop11h 36mJetBlue
Tue 25/37:25 a.m.LHR - MIA
1 stop13h 14mJetBlue
Deal found 21/3C$ 903
Wed 26/1110:55 p.m.MIA - LHR
Nonstop8h 25mFinnair
Sun 30/116:10 p.m.LHR - MIA
1 stop27h 20mFinnair
Deal found 21/3C$ 918
Wed 16/46:22 a.m.MIA - LHR
1 stop20h 18mUnited Airlines
Wed 23/48:40 a.m.LHR - MIA
1 stop13h 50mUnited Airlines
Deal found 20/3C$ 939
Sun 4/510:30 p.m.MIA - LHR
Nonstop8h 45mDelta
Tue 13/511:30 a.m.LHR - MIA
1 stop14h 05mDelta
Deal found 20/3C$ 948
Sat 11/106:53 p.m.MIA - LHR
1 stop31h 47mMultiple Airlines
Tue 21/102:05 p.m.LHR - MIA
1 stop27h 45mMultiple Airlines
Deal found 19/3C$ 949
Sun 6/44:40 p.m.MIA - LHR
1 stop15h 00mLufthansa
Mon 14/48:25 p.m.LHR - MIA
1 stop25h 40mLufthansa
Deal found 20/3C$ 985
Sat 17/53:24 p.m.MIA - LHR
1 stop12h 26mKLM
Sun 15/610:55 a.m.LHR - MIA
1 stop12h 53mKLM
Deal found 20/3C$ 1,010
Thu 3/47:25 p.m.MIA - LHR
Nonstop9h 00mVirgin Atlantic
Thu 10/43:55 p.m.LHR - MIA
Nonstop9h 40mVirgin Atlantic
Deal found 20/3C$ 1,031
Fri 11/48:50 p.m.MIA - LHR
Nonstop8h 45mBritish Airways
Sun 27/412:15 p.m.LHR - MIA
Nonstop9h 40mBritish Airways
Deal found 21/3C$ 1,041

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 21 March 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

Tue 1/4

10:15 a.m.-6:30 a.m.

1 stop15h 15m

London Heathrow

Wed 7/5

8:15 a.m.-10:32 p.m.

1 stop19h 17m

C$ 924

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 16/4

6:22 a.m.-7:40 a.m.

1 stop20h 18m

London Heathrow

Wed 23/4

8:40 a.m.-5:30 p.m.

1 stop13h 50m

C$ 939

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 4/5

10:30 p.m.-12:15 p.m.

Nonstop8h 45m

London Heathrow

Wed 14/5

6:15 a.m.-2:15 p.m.

1 stop13h 00m

C$ 948

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 8/5

8:50 p.m.-10:35 a.m.

Nonstop8h 45m

London Heathrow

Fri 23/5

2:10 p.m.-6:50 p.m.

Nonstop9h 40m

C$ 971

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 6/4

4:40 p.m.-12:40 p.m.

1 stop15h 00m

London Heathrow

Mon 14/4

8:25 p.m.-5:05 p.m.

1 stop25h 40m

C$ 985

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 19/5

10:30 p.m.-12:15 p.m.

Nonstop8h 45m

London Heathrow

Tue 3/6

10:45 a.m.-3:45 p.m.

Nonstop10h 00m

C$ 988

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 15/4

7:40 p.m.-4:35 p.m.

2 stops15h 55m

London Heathrow

Mon 28/4

6:40 p.m.-2:15 p.m.

1 stop24h 35m

C$ 1,002

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 2/4

11:15 a.m.-4:25 p.m.

2 stops24h 10m

London Heathrow

Mon 7/4

7:05 a.m.-11:14 p.m.

2 stops21h 09m

C$ 1,004

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 17/5

3:24 p.m.-8:50 a.m.

1 stop12h 26m

London Heathrow

Sun 15/6

10:55 a.m.-6:48 p.m.

1 stop12h 53m

C$ 1,010

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 5/9

12:25 a.m.-10:55 p.m.

1 stop17h 30m

London Heathrow

Fri 10/10

6:00 a.m.-9:45 p.m.

1 stop20h 45m

C$ 1,021

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/3

Showing 1-10 of 28 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 14 March 2025.

To ensure you get the cheapest price possible for a flight from Miami to London Heathrow Airport, you should look to book at least 73 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$ 560). Flying from Miami to London Heathrow Airport in July is currently the most expensive (average of C$ 874). 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 21 March 2025.

When flying from Miami to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 2% versus 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 21 March 2025.

The most flights from MIA to LHR are scheduled on a Monday (34 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (34 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 21 March 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Miami to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,895 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,895 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,319 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
768 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,567 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 34 daily outbound flights to London Heathrow from 0 different airlines.

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

    Currently priced at C$ 924, JetBlue will fly you from Miami to London Heathrow Airport and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from C$ 939 and C$ 948, respectively. JetBlue is currently priced 10% 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?

    One-way options have recently been found by users for as low as C$ 346 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include JetBlue from C$ 393 and United Airlines from C$ 608 one-way.

  • 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 Air France (78%), Delta (78%) or Aeromexico (78%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Miami to London Heathrow Airport? While on average our users pay C$ 888, our data indicates the cheapest price to be C$ 427. The most popular route (Miami - London Heathrow), is priced around C$ 964.

  • 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$ 560). Flying from Miami to London Heathrow Airport in July is currently the most expensive (average of C$ 874). 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

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Sutton
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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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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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