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Heathrow

$335+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LHR
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This Mytrip deal was found by Cheapflights users on 1/28. 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.
Tue 2/178:37 pm
MIA
-
LHR
2 stops29h 33m
Multiple Airlines
Thu 2/197:25 pm
LHR
-
MIA
2 stops31h 07m
Multiple Airlines
Deal found 1/28$556
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Thu 2/124:35 pm
MIA
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Wed 2/186:00 am
LHR
-
MIA
1 stop13h 50m
TAP AIR PORTUGAL
Deal found 1/27$559
This FlightHub deal was found by Cheapflights users on 1/28. 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 2/274:35 pm
MIA
-
LHR
1 stop13h 50m
TAP AIR PORTUGAL
Fri 3/1312:25 pm
LHR
-
MIA
1 stop13h 55m
TAP AIR PORTUGAL
Deal found 1/28$560
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Wed 3/1812:35 am
MIA
-
LHR
1 stop14h 20m
TAP AIR PORTUGAL
Fri 4/178:00 am
LHR
-
MIA
1 stop18h 55m
TAP AIR PORTUGAL
Deal found 1/26$561
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Tue 5/194:30 pm
MIA
-
LHR
1 stop20h 15m
TAP AIR PORTUGAL
Sun 5/316:00 am
LHR
-
MIA
1 stop13h 30m
TAP AIR PORTUGAL
Deal found 1/28$563
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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.
Wed 4/223:50 am
MIA
-
LHR
1 stop14h 05m
TAP AIR PORTUGAL
Thu 5/76:00 am
LHR
-
MIA
1 stop13h 30m
TAP AIR PORTUGAL
Deal found 1/28$565
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Wed 1/2811:35 pm
MIA
-
LHR
1 stop12h 55m
TAP AIR PORTUGAL
Sun 2/14:30 pm
LHR
-
MIA
1 stop27h 20m
TAP AIR PORTUGAL
Deal found 1/28$566
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 5/54:30 pm
MIA
-
LHR
1 stop12h 50m
TAP AIR PORTUGAL
Mon 5/116:00 am
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Deal found 1/27$567
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Fri 2/274:35 pm
MIA
-
LHR
1 stop13h 50m
TAP AIR PORTUGAL
Wed 3/116:00 am
LHR
-
MIA
1 stop13h 50m
TAP AIR PORTUGAL
Deal found 1/28$568
This FlightHub deal was found by Cheapflights users on 1/28. 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.
Sun 2/1511:50 pm
MIA
-
LHR
1 stop16h 45m
TAP AIR PORTUGAL
Tue 2/246:30 pm
LHR
-
MIA
1 stop25h 20m
TAP AIR PORTUGAL
Deal found 1/28$569
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/223:50 am
MIA
-
LHR
1 stop14h 05m
TAP AIR PORTUGAL
Sun 5/36:00 am
LHR
-
MIA
1 stop13h 30m
TAP AIR PORTUGAL
Deal found 1/27$571
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Thu 2/261:21 pm
MIA
-
LHR
2 stops25h 09m
Multiple Airlines
Wed 3/1112:15 pm
LHR
-
MIA
2 stops25h 19m
Multiple Airlines
Deal found 1/27$572

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$556
(Mytrip)

One-way from

$335
(Kiwi.com)
Provider with most accurate pricing for Key West-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-London (LON) flights.
Search Deals
From Florida Keys to London Heathrow
Search Deals
One-way flight from Florida Keys to London Heathrow
Search Deals

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 January 29, 2026.
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

Thu 2/26

2:46 pm-7:50 am

1 stop12h 04m

London Heathrow

Mon 3/2

6:30 am-5:01 pm

2 stops15h 31m

$634

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 2/26

7:10 am-6:50 am

2 stops18h 40m

London Heathrow

Mon 3/2

6:30 am-5:01 pm

2 stops15h 31m

$638

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 4/1

1:20 pm-6:55 am

1 stop12h 35m

London Heathrow

Thu 4/9

7:25 am-5:05 pm

1 stop14h 40m

$639

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 2/25

10:00 pm-11:30 am

Nonstop8h 30m

London Heathrow

Sat 3/7

2:30 pm-7:30 pm

Nonstop10h 00m

$647

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 2/27

9:25 pm-11:10 am

Nonstop8h 45m

London Heathrow

Wed 3/11

2:00 pm-8:25 pm

Nonstop10h 25m

$647

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 2/26

10:10 pm-11:55 am

Nonstop8h 45m

London Heathrow

Sun 3/15

9:25 am-3:50 pm

Nonstop10h 25m

$647

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 2/26

5:10 pm-7:00 am

Nonstop8h 50m

London Heathrow

Mon 3/16

9:25 am-3:50 pm

Nonstop10h 25m

$647

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 2/26

10:10 pm-11:55 am

Nonstop8h 45m

London Heathrow

Wed 3/11

2:00 pm-8:25 pm

Nonstop10h 25m

$647

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 2/26

4:22 pm-9:40 am

1 stop12h 18m

London Heathrow

Wed 3/11

11:15 am-5:15 pm

Nonstop10h 00m

$648

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 2/27

11:40 am-8:15 am

1 stop15h 35m

London Heathrow

Fri 3/6

11:15 am-4:15 pm

Nonstop10h 00m

$651

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 25 results
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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 January 29, 2026.
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
8,127 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

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
8,127 reviews
Delta
7.9
Good
8,127 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

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
678 reviews
Delta
7.9
Good
8,127 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

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
11,206 reviews
Delta
7.9
Good
8,127 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

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
3,100 reviews
Delta
7.9
Good
8,127 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

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
7,705 reviews
Delta
7.9
Good
8,127 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

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 KLM, Delta, and United Airlines fly from Florida Keys to London Heathrow Airport in about 12h 04m. The time it takes to get you to your destination can typically vary by up to 6h 36m. There are 4539 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.

  • What are the cheapest airlines to fly from Florida Keys to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with Norse Atlantic UK, which is currently one of the cheapest options available, starting at $139. TAP AIR PORTUGAL flights start at $169 while deals on JetBlue start at $274 one-way.

  • 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
Ilford
Hounslow
Southend-on-Sea
Harrow
Croydon
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

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Alternative routes for Florida Keys to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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