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Cheap flights from Miami to London Heathrow Airport from C$ 300

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LHR
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Miami to London Heathrow are usually found in February or October, booked 26 days in advance, depart on a Monday or Saturday and return on a Monday

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 15 April 2025.

Round-trip from

C$ 563

One-way from

C$ 300

Popular in

December

Cheapest in

February

Average price

C$ 990

Good one-way deal

C$ 831 or less
KLM
  • KLM
  • 3/9-9/9
  • 2 total stops
  • 24h 40m total
  • Miami to London
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 8/8
  • 1 total stop
  • 17h 30m total
  • Miami to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 57 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 33 potential savings vs. average RT price).
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Average for round-trip flights in April 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 15 April 2025.

Wed 3/92:03 p.m.MIA - LHR
1 stop11h 42mKLM
Tue 9/99:20 a.m.LHR - MIA
1 stop12h 58mKLM
Deal found 15/4C$ 563
Fri 9/57:25 p.m.MIA - LHR
Nonstop9h 00mDelta
Mon 26/53:55 p.m.LHR - MIA
Nonstop9h 40mDelta
Deal found 15/4C$ 630
Fri 19/912:27 p.m.MIA - LHR
2 stops16h 08mUnited Airlines
Sun 21/98:45 a.m.LHR - MIA
1 stop13h 45mUnited Airlines
Deal found 14/4C$ 711
Thu 15/57:25 p.m.MIA - LHR
Nonstop9h 00mVirgin Atlantic
Sun 25/53:55 p.m.LHR - MIA
Nonstop9h 40mVirgin Atlantic
Deal found 15/4C$ 716
Tue 2/124:35 p.m.MIA - LHR
1 stop19h 55mTAP AIR PORTUGAL
Tue 9/121:40 p.m.LHR - MIA
1 stop30h 10mTAP AIR PORTUGAL
Deal found 15/4C$ 813
Fri 25/45:59 p.m.MIA - LHR
1 stop12h 06mFinnair
Wed 7/51:40 p.m.LHR - MIA
Nonstop9h 35mFinnair
Deal found 15/4C$ 865
Wed 16/410:20 a.m.MIA - LHR
1 stop15h 10mJetBlue
Wed 23/48:25 a.m.LHR - MIA
1 stop15h 12mJetBlue
Deal found 15/4C$ 898
Sun 17/87:40 p.m.MIA - LHR
1 stop18h 40mSWISS
Sun 24/88:55 a.m.LHR - MIA
2 stops37h 35mSWISS
Deal found 15/4C$ 916
Thu 24/412:38 p.m.MIA - LHR
1 stop15h 17mAir France
Sat 3/56:15 a.m.LHR - MIA
2 stops19h 33mAir France
Deal found 15/4C$ 950
Fri 21/116:53 p.m.MIA - LHR
1 stop31h 37mMultiple Airlines
Sat 29/112:30 p.m.LHR - MIA
1 stop27h 32mMultiple Airlines
Deal found 15/4C$ 989
Tue 29/45:00 p.m.MIA - LHR
Nonstop8h 55mBritish Airways
Fri 9/59:55 a.m.LHR - MIA
Nonstop9h 35mBritish Airways
Deal found 15/4C$ 994

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 15 April 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

Wed 3/9

2:03 p.m.-6:45 a.m.

1 stop11h 42m

London Heathrow

Tue 9/9

9:20 a.m.-5:18 p.m.

1 stop12h 58m

C$ 563

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 9/5

7:25 p.m.-9:25 a.m.

Nonstop9h 00m

London Heathrow

Mon 26/5

3:55 p.m.-8:35 p.m.

Nonstop9h 40m

C$ 630

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 19/9

12:27 p.m.-9:35 a.m.

2 stops16h 08m

London Heathrow

Sun 21/9

8:45 a.m.-5:30 p.m.

1 stop13h 45m

C$ 711

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 15/5

7:25 p.m.-9:25 a.m.

Nonstop9h 00m

London Heathrow

Sun 25/5

3:55 p.m.-8:35 p.m.

Nonstop9h 40m

C$ 716

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 25/4

5:59 p.m.-11:05 a.m.

1 stop12h 06m

London Heathrow

Wed 7/5

1:40 p.m.-6:15 p.m.

Nonstop9h 35m

C$ 865

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 12/8

7:40 p.m.-7:20 p.m.

1 stop18h 40m

London Heathrow

Mon 18/8

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

1 stop34h 20m

C$ 870

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 5/10

12:35 a.m.-10:00 p.m.

1 stop16h 25m

London Heathrow

Mon 13/10

7:50 p.m.-2:45 p.m.

1 stop23h 55m

C$ 907

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 10/5

12:27 p.m.-9:00 a.m.

2 stops39h 33m

London Heathrow

Sat 17/5

10:25 a.m.-9:51 p.m.

2 stops40h 26m

C$ 933

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 1/5

2:01 p.m.-9:30 a.m.

1 stop14h 29m

London Heathrow

Thu 8/5

11:55 a.m.-12:13 a.m.

1 stop17h 18m

C$ 940

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 27/4

1:00 p.m.-11:35 a.m.

1 stop17h 35m

London Heathrow

Sat 3/5

4:30 p.m.-2:40 p.m.

1 stop27h 10m

C$ 944

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/4

Showing 1-10 of 26 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 11 April 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 26 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 15 April 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 3% 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 15 April 2025.

The most flights from MIA to LHR are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 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 15 April 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
7,918 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

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
7,918 reviews
Delta
8.0
Very good
7,918 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

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
1,323 reviews
Delta
8.0
Very good
7,918 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

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
1,269 reviews
Delta
8.0
Very good
7,918 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

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
775 reviews
Delta
8.0
Very good
7,918 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

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.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,918 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

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 24 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$ 563, KLM will fly you from Miami to London Heathrow Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from C$ 630 and C$ 711, respectively. KLM is currently priced 44% 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$ 300 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include JetBlue from C$ 548 and Virgin Atlantic from C$ 549 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 Singapore Airlines (77%), Air France (76%) or Delta (75%) 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$ 831, our data indicates the cheapest price to be C$ 619. The most popular route (Miami - London Heathrow), is priced around C$ 1,047.

  • 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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