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Cheap flights from Miami to London Heathrow Airport from C$ 343

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
17 jun. — 24 jun.1
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 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 12 junio 2025.

Round-trip from

C$ 688

One-way from

C$ 343

Popular in

December

Cheapest in

February

Average price

C$ 1,213
Scandinavian Airlines
  • Scandinavian Airlines
  • 5/11-10/11
  • 3 total stops
  • 34h 20m total
  • Miami to London
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 7/7
  • 1 total stop
  • 20h 10m total
  • Miami to London
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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 June 2025
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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 12 junio 2025.

mié. 5/117:40 p.m.MIA - LHR
2 stops18h 10mScandinavian Airlines
lun. 10/116:40 a.m.LHR - MIA
1 stop16h 10mScandinavian Airlines
Deal found 12/6C$ 688
mié. 17/93:55 a.m.MIA - LHR
1 stop14h 00mTAP AIR PORTUGAL
dom. 28/96:00 a.m.LHR - MIA
1 stop21h 10mTAP AIR PORTUGAL
Deal found 10/6C$ 751
mié. 20/88:40 p.m.MIA - LHR
Nonstop8h 55mBritish Airways
lun. 1/98:30 a.m.LHR - MIA
1 stop13h 45mBritish Airways
Deal found 10/6C$ 829
mié. 25/67:25 p.m.MIA - LHR
Nonstop9h 00mDelta
mar. 26/86:15 a.m.LHR - MIA
1 stop19h 35mDelta
Deal found 10/6C$ 849
lun. 1/97:30 p.m.MIA - LHR
1 stop13h 00mKLM
dom. 14/99:20 a.m.LHR - MIA
1 stop12h 58mKLM
Deal found 10/6C$ 868
mié. 12/115:15 p.m.MIA - LHR
1 stop12h 35mIcelandair
mié. 19/118:40 p.m.LHR - MIA
1 stop29h 15mIcelandair
Deal found 12/6C$ 891
lun. 8/912:50 p.m.MIA - LHR
2 stops15h 30mUnited Airlines
mié. 15/108:40 a.m.LHR - MIA
1 stop13h 50mUnited Airlines
Deal found 10/6C$ 924
lun. 8/94:40 p.m.MIA - LHR
1 stop21h 00mLufthansa
lun. 22/98:25 p.m.LHR - MIA
2 stops23h 15mLufthansa
Deal found 11/6C$ 979
lun. 11/812:20 p.m.MIA - LHR
2 stops39h 00mAustrian Airlines
lun. 18/86:00 a.m.LHR - MIA
2 stops37h 40mAustrian Airlines
Deal found 12/6C$ 984
jue. 11/97:40 p.m.MIA - LHR
1 stop12h 20mSWISS
vie. 26/98:40 a.m.LHR - MIA
1 stop13h 50mSWISS
Deal found 11/6C$ 1,008

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 12 junio 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

mié. 5/11

7:40 p.m.-6:50 p.m.

2 stops18h 10m

London Heathrow

lun. 10/11

6:40 a.m.-5:50 p.m.

1 stop16h 10m

C$ 688

MiamiLondon

MIA - LHR

MIALHR

Miami

mié. 17/9

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

1 stop14h 00m

London Heathrow

dom. 28/9

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

1 stop21h 10m

C$ 751

MiamiLondon

MIA - LHR

MIALHR

Miami

mié. 20/8

8:40 p.m.-10:35 a.m.

Nonstop8h 55m

London Heathrow

lun. 1/9

8:30 a.m.-5:15 p.m.

1 stop13h 45m

C$ 829

MiamiLondon

MIA - LHR

MIALHR

Miami

mié. 25/6

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

Nonstop9h 00m

London Heathrow

mar. 26/8

6:15 a.m.-8:50 p.m.

1 stop19h 35m

C$ 849

MiamiLondon

MIA - LHR

MIALHR

Miami

lun. 1/9

7:30 p.m.-1:30 p.m.

1 stop13h 00m

London Heathrow

dom. 14/9

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

1 stop12h 58m

C$ 868

MiamiLondon

MIA - LHR

MIALHR

Miami

mié. 12/11

5:15 p.m.-10:50 a.m.

1 stop12h 35m

London Heathrow

mié. 19/11

8:40 p.m.-8:55 p.m.

1 stop29h 15m

C$ 891

MiamiLondon

MIA - LHR

MIALHR

Miami

lun. 8/9

12:50 p.m.-9:20 a.m.

2 stops15h 30m

London Heathrow

mié. 15/10

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

1 stop13h 50m

C$ 924

MiamiLondon

MIA - LHR

MIALHR

Miami

lun. 8/9

4:40 p.m.-6:40 p.m.

1 stop21h 00m

London Heathrow

lun. 22/9

8:25 p.m.-2:40 p.m.

2 stops23h 15m

C$ 979

MiamiLondon

MIA - LHR

MIALHR

Miami

lun. 11/8

12:20 p.m.-8:20 a.m.

2 stops39h 00m

London Heathrow

lun. 18/8

6:00 a.m.-2:40 p.m.

2 stops37h 40m

C$ 984

MiamiLondon

MIA - LHR

MIALHR

Miami

jue. 11/9

7:40 p.m.-1:00 p.m.

1 stop12h 20m

London Heathrow

vie. 26/9

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

1 stop13h 50m

C$ 1,008

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

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 9 June 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$ 857). 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 12 junio 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 12 junio 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 (23 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 12 junio 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Austrian Airlines 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
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

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 27 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$ 688, Scandinavian Airlines will fly you from Miami to London Heathrow Airport and back. In addition to Scandinavian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from TAP AIR PORTUGAL and British Airways - these airlines can fly you to your destination from C$ 751 and C$ 829, respectively. Scandinavian Airlines is currently priced 30% 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$ 343 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include JetBlue from C$ 421 and United Airlines from C$ 558 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 (86%), KLM (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, 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$ 857). 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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