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Cheap flights from Florida Keys to London Heathrow Airport from £153

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LHR
8 Apr — 15 Apr1
1 adult

Cheap flight deals from Florida Keys to Heathrow

Keep the following information in mind while searching for Florida Keys to Heathrow flight deals. Data was last updated 3 April 2025.

Round-trip from

£368

One-way from

£153

Popular in

June

Cheapest in

May

Average price

£619
SWISS
  • SWISS
  • 2/5-4/5
  • 2 total stops
  • 27h 45m total
  • Florida Keys to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 10/8
  • 1 total stop
  • 13h 15m total
  • Florida Keys to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Florida Keys to Heathrow

Cheapest flights from Florida Keys to Heathrow
Explore the most affordable flight options available from Florida Keys to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 April 2025.

Fri 2/514:15MIA - LHR
1 stop11h 15mMultiple Airlines
Sun 4/506:00LHR - MIA
1 stop16h 30mMultiple Airlines
Deal found 2/4£368
Fri 18/416:57MIA - LHR
1 stop13h 38mUnited Airlines
Sun 20/408:45LHR - MIA
1 stop13h 45mUnited Airlines
Deal found 1/4£384
Tue 15/414:15MIA - LHR
1 stop12h 50mIberia
Tue 22/413:40LHR - MIA
Nonstop9h 40mIberia
Deal found 2/4£405
Fri 2/522:30MIA - LHR
Nonstop8h 45mVirgin Atlantic
Sun 4/511:30LHR - MIA
1 stop14h 05mVirgin Atlantic
Deal found 2/4£415
Tue 6/517:00MIA - LHR
Nonstop8h 55mBritish Airways
Sun 11/513:40LHR - MIA
Nonstop9h 35mBritish Airways
Deal found 2/4£427
Wed 29/1020:45MIA - LHR
1 stop32h 10mScandinavian Airlines
Sun 9/1110:20LHR - MIA
1 stop36h 35mScandinavian Airlines
Deal found 2/4£439
Tue 1/416:30MIA - LHR
1 stop21h 20mTAP AIR PORTUGAL
Tue 15/418:45LHR - MIA
1 stop25h 00mTAP AIR PORTUGAL
Deal found 31/3£454
Thu 1/521:35MIA - LHR
1 stop33h 15mAir Canada
Wed 14/512:40LHR - MIA
2 stops29h 38mAir Canada
Deal found 1/4£456
Wed 23/418:10MIA - LHR
1 stop12h 00mDelta
Wed 30/406:15LHR - MIA
1 stop13h 00mDelta
Deal found 1/4£474
Thu 17/417:00MIA - LHR
Nonstop8h 55mAmerican Airlines
Sun 4/509:55LHR - MIA
Nonstop9h 35mAmerican Airlines
Deal found 2/4£480
Sat 20/915:35MIA - LHR
1 stop12h 15mKLM
Mon 29/913:05LHR - MIA
1 stop12h 50mKLM
Deal found 2/4£483
Wed 16/418:45MIA - LHR
1 stop13h 05mLufthansa
Sat 26/407:25LHR - MIA
1 stop14h 40mLufthansa
Deal found 1/4£486

Cheapflights Fare Finder

Customise your flight search to find flights from Florida Keys 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 3 April 2025.
Use the filters below to find and compare flights from Florida Keys to London Heathrow Airport that are best for you.

Fly from

Florida Keys

Fly to

Heathrow

Route

Depart

Return

Price

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 2/5

14:15-06:30

1 stop11h 15m

London Heathrow

Sun 4/5

06:00-17:30

1 stop16h 30m

£368

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 18/4

16:57-11:35

1 stop13h 38m

London Heathrow

Sun 20/4

08:45-17:30

1 stop13h 45m

£384

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 15/4

14:15-08:05

1 stop12h 50m

London Heathrow

Tue 22/4

13:40-18:20

Nonstop9h 40m

£405

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 2/5

22:30-12:15

Nonstop8h 45m

London Heathrow

Sun 4/5

11:30-20:35

1 stop14h 05m

£415

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 6/5

17:00-06:55

Nonstop8h 55m

London Heathrow

Sun 11/5

13:40-18:15

Nonstop9h 35m

£427

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 1/5

21:35-11:50

1 stop33h 15m

London Heathrow

Wed 14/5

12:40-13:18

2 stops29h 38m

£456

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 19/9

00:25-17:45

1 stop12h 20m

London Heathrow

Wed 1/10

06:00-21:50

1 stop20h 50m

£471

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 23/4

13:50-11:10

1 stop16h 20m

London Heathrow

Wed 30/4

11:30-20:35

1 stop14h 05m

£474

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 17/4

17:00-06:55

Nonstop8h 55m

London Heathrow

Sun 4/5

09:55-14:30

Nonstop9h 35m

£480

MiamiLondon

MIA - LHR

MIALHR

Miami

Sat 20/9

15:35-08:50

1 stop12h 15m

London Heathrow

Mon 29/9

13:05-20:55

1 stop12h 50m

£483

Flights are sorted by cheapest return flights first.

Deals found on 2/4

Showing 1-10 of 32 results
1
2
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Best time to book a flight from Florida Keys to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Florida Keys 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 Florida Keys to London Heathrow Airport

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 inches 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 3 April 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Florida Keys to London by reading reviews from past customers. 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
7,897 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

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
7,897 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

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
7,897 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

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
1,267 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

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
1,574 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

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
7.4
Good
1,427 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

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 Florida Keys to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Florida Keys 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 £153. Users have also found prices from £258 and £266 on Virgin Atlantic and JetBlue, respectively.

  • Can I find deals for flights from Florida Keys to Heathrow that include hotel bookings?

    Yes. In addition to deals on Florida Keys to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Florida Keys to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Florida Keys to Heathrow.

  • Can I find deals for business class flights from Florida Keys to Heathrow?

    Yes. Cheapflights offers flight deals from Florida Keys 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 Florida Keys to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Florida Keys to London Heathrow Airport (average of £112). Flying from Florida Keys to London Heathrow Airport in August is currently the most expensive (average of £164). 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 Florida Keys?

Book flights to Florida Keys if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Gatwick
Luton
Croydon
Slough
Eastbourne
Northampton
Wembley
Crawley
Winchester
Swindon
Southend-on-Sea
Maidstone
Hayes
Ipswich
Ilford
Southall
Dartford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Florida Keys to Heathrow

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Top airline flying from Florida Keys to Heathrow

Discover the top airline that operate flights from Florida Keys 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 3 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£615Average£1,124FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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 Florida Keys to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Florida Keys today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Florida Keys to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Florida Keys to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Florida Keys to Heathrow with no change fees?

Yes, we can. To see specific flights from Florida Keys to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Florida Keys to Heathrow become cheaper?

Of course! You can now track prices for flights from Florida Keys 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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