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Heathrow

$185+ Cheap flights from Florida Keys to Heathrow (LHR)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LHR
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$521
(KAYAK)

One-way from

$185
(Trip.com)
Provider with most accurate pricing for Key West-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Key West-London (LON) flights.
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From Florida Keys to London Heathrow
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One-way flight from Florida Keys to London Heathrow
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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 October 23, 2025.

This KAYAK deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:15 pmMIA - LHR
1 stop12h 35mIcelandair
Thu 11/2712:15 pmLHR - MIA
1 stop13h 40mIcelandair
Deal found 10/22$521
This KAYAK deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:15 pmMIA - LHR
1 stop21h 15mIcelandair
Wed 11/128:35 pmLHR - MIA
1 stop29h 20mIcelandair
Deal found 10/23$522
This KAYAK deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:15 pmMIA - LHR
1 stop12h 35mIcelandair
Wed 11/268:35 pmLHR - MIA
1 stop29h 20mIcelandair
Deal found 10/22$523
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/294:35 pmMIA - LHR
1 stop15h 05mTAP AIR PORTUGAL
Mon 12/86:00 amLHR - MIA
1 stop13h 50mTAP AIR PORTUGAL
Deal found 10/20$524
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:35 pmMIA - LHR
1 stop14h 20mTAP AIR PORTUGAL
Wed 11/198:15 amLHR - MIA
1 stop18h 35mTAP AIR PORTUGAL
Deal found 10/21$534
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:35 pmMIA - LHR
1 stop15h 05mTAP AIR PORTUGAL
Mon 12/86:00 amLHR - MIA
1 stop13h 50mTAP AIR PORTUGAL
Deal found 10/20$535
This Cheapflightsfares deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:50 pmMIA - LHR
1 stop17h 50mTAP AIR PORTUGAL
Wed 11/198:15 amLHR - MIA
1 stop18h 35mTAP AIR PORTUGAL
Deal found 10/22$536
This SmartFares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:35 pmMIA - LHR
1 stop19h 55mTAP AIR PORTUGAL
Tue 12/98:15 amLHR - MIA
1 stop35h 35mTAP AIR PORTUGAL
Deal found 10/21$540
This CrystalTravel deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:55 pmMIA - LHR
1 stop20h 45mScandinavian Airlines
Thu 12/46:40 amLHR - MIA
1 stop16h 25mScandinavian Airlines
Deal found 10/21$544
This Scandinavian Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:27 amMIA - LHR
2 stops26h 03mScandinavian Airlines
Thu 11/207:50 pmLHR - MIA
2 stops27h 15mScandinavian Airlines
Deal found 10/20$546
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/294:35 pmMIA - LHR
1 stop13h 50mTAP AIR PORTUGAL
Tue 12/96:00 amLHR - MIA
1 stop13h 50mTAP AIR PORTUGAL
Deal found 10/20$556
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/711:50 pmMIA - LHR
1 stop12h 40mTAP AIR PORTUGAL
Sun 12/141:40 pmLHR - MIA
1 stop30h 10mTAP AIR PORTUGAL
Deal found 10/21$557

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated October 23, 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

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 12/2

12:38 pm-10:15 am

2 stops16h 37m

London Heathrow

Wed 12/10

6:30 am-8:06 pm

2 stops18h 36m

$599

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 12/2

5:10 pm-6:50 am

Nonstop8h 40m

London Heathrow

Tue 12/9

11:25 am-8:45 pm

1 stop14h 20m

$614

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 11/28

7:15 am-4:00 pm

2 stops27h 45m

London Heathrow

Fri 12/5

7:50 pm-6:05 pm

2 stops27h 15m

$616

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 11/27

11:27 am-6:30 pm

2 stops26h 03m

London Heathrow

Tue 12/2

7:50 pm-6:05 pm

2 stops27h 15m

$616

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 11/18

4:52 pm-9:00 am

1 stop11h 08m

London Heathrow

Tue 11/25

6:30 am-2:50 pm

1 stop13h 20m

$633

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 12/7

6:10 pm-7:50 am

1 stop32h 40m

London Heathrow

Sun 12/14

9:00 am-2:07 pm

2 stops34h 07m

$633

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 10/26

7:39 pm-11:40 am

1 stop12h 01m

London Heathrow

Tue 11/11

2:00 pm-7:25 pm

Nonstop10h 25m

$634

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 11/19

5:10 pm-6:50 am

Nonstop8h 40m

London Heathrow

Wed 11/26

2:30 pm-7:30 pm

Nonstop10h 00m

$635

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 11/19

5:10 pm-6:50 am

Nonstop8h 40m

London Heathrow

Thu 11/27

9:45 am-2:40 pm

Nonstop9h 55m

$635

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 11/19

9:25 pm-11:10 am

Nonstop8h 45m

London Heathrow

Thu 11/27

2:00 pm-7:25 pm

Nonstop10h 25m

$635

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 28 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 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 Florida Keys to London Heathrow Airport
No data available for this route at this time. Please check back soon.

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 October 23, 2025.
Read reviews from past customers who have flown Delta, Virgin Atlantic, and American Airlines from Florida Keys to London Heathrow Airport. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

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
7.9
Good
7,981 reviews
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

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.
Virgin Atlantic
7.5
Good
670 reviews
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

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.
American Airlines
7.2
Good
11,031 reviews
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

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.
Iberia
7.0
Good
2,997 reviews
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

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.
British Airways
6.7
Okay
7,469 reviews
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

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 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.

  • How long is the flight from Florida Keys to London Heathrow Airport?

    Airlines like Delta, British Airways, and Scandinavian Airlines fly from Florida Keys to London Heathrow Airport in about 8h 40m. The time it takes to get you to your destination can typically vary by up to 19h 05m. There are 4414 mi between Florida Keys and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 vacation 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.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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