HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$163+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LHR
Aug 12 — Aug 191
Tue 8/12
Tue 8/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Florida Keys to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 August 7, 2025.

Round-trip from

$456
(World Air Fares)

One-way from

$162
(oojo)
From Florida Keys to London Heathrow
Search Deals
One-way flight from Florida Keys to London Heathrow
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 August 7, 2025.

This World Air Fares deal was found by Cheapflights users on 8/5. 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 World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:53 pmMIA - LHR
1 stop13h 42mLufthansa
Tue 9/168:45 amLHR - MIA
1 stop13h 45mLufthansa
Deal found 8/5$456
This Cheapflightsfares deal was found by Cheapflights users on 8/5. 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 8/137:55 amMIA - LHR
1 stop21h 05mAir Canada
Wed 8/276:50 amLHR - MIA
2 stops21h 26mAir Canada
Deal found 8/5$462
This Flightnetwork deal was found by Cheapflights users on 8/6. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/222:20 pmMIA - LHR
1 stop14h 15mMultiple Airlines
Wed 10/88:40 amLHR - MIA
1 stop13h 50mMultiple Airlines
Deal found 8/6$472
This Gotogate deal was found by Cheapflights users on 8/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/197:55 amMIA - LHR
1 stop17h 35mMultiple Airlines
Tue 8/266:00 amLHR - MIA
1 stop16h 30mMultiple Airlines
Deal found 8/6$473
This FlightHub deal was found by Cheapflights users on 8/5. 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 10/268:05 pmMIA - LHR
1 stop11h 20mAer Lingus
Wed 11/59:50 amLHR - MIA
1 stop12h 20mAer Lingus
Deal found 8/5$476
This Flightnetwork deal was found by Cheapflights users on 8/5. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:50 amMIA - LHR
2 stops13h 40mMultiple Airlines
Tue 9/165:10 pmLHR - MIA
1 stop29h 20mMultiple Airlines
Deal found 8/5$477
This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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.
Tue 9/92:20 pmMIA - LHR
1 stop11h 10mAir Canada
Wed 9/179:30 amLHR - MIA
2 stops17h 04mAir Canada
Deal found 8/6$479
This Ovago deal was found by Cheapflights users on 8/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/191:29 pmEYW - LHR
1 stop14h 56mBritish Airways
Thu 8/287:30 pmLHR - EYW
2 stops50h 53mBritish Airways
Deal found 8/6$635
This American Airlines deal was found by Cheapflights users on 8/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/271:13 pmEYW - LHR
2 stops13h 37mAmerican Airlines
Wed 9/39:55 amLHR - EYW
1 stop14h 04mAmerican Airlines
Deal found 8/7$653
This Delta deal was found by Cheapflights users on 8/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/192:00 pmEYW - LHR
2 stops16h 00mDelta
Thu 8/286:15 amLHR - EYW
2 stops18h 57mDelta
Deal found 8/6$808
This Gotogate deal was found by Cheapflights users on 8/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/271:52 pmEYW - LHR
1 stop12h 03mBritish Airways
Wed 9/39:55 amLHR - EYW
1 stop14h 04mBritish Airways
Deal found 8/7$923

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 August 7, 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

Tue 9/9

4:53 pm-11:35 am

1 stop13h 42m

London Heathrow

Tue 9/16

8:45 am-5:30 pm

1 stop13h 45m

$456

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 8/17

8:40 am-11:35 am

1 stop21h 55m

London Heathrow

Tue 8/26

8:45 am-5:30 pm

1 stop13h 45m

$465

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 11/19

7:05 pm-11:25 am

1 stop11h 20m

London Heathrow

Wed 12/3

9:50 am-5:10 pm

1 stop12h 20m

$470

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 9/22

2:20 pm-9:35 am

1 stop14h 15m

London Heathrow

Wed 10/8

8:40 am-5:30 pm

1 stop13h 50m

$472

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 8/19

7:55 am-6:30 am

1 stop17h 35m

London Heathrow

Tue 8/26

6:00 am-5:30 pm

1 stop16h 30m

$473

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 10/22

2:20 pm-6:30 am

1 stop11h 10m

London Heathrow

Wed 10/29

9:00 am-6:30 pm

1 stop13h 30m

$474

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 9/9

11:50 am-6:30 am

2 stops13h 40m

London Heathrow

Tue 9/16

5:10 pm-5:30 pm

1 stop29h 20m

$477

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 9/9

2:20 pm-6:30 am

1 stop11h 10m

London Heathrow

Wed 9/17

9:30 am-9:34 pm

2 stops17h 04m

$479

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 9/9

2:20 pm-11:50 am

2 stops16h 30m

London Heathrow

Tue 9/16

6:50 am-9:34 pm

2 stops19h 44m

$484

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 8/19

1:29 pm-9:25 am

1 stop14h 56m

London Heathrow

Thu 8/28

7:30 pm-5:23 pm

2 stops50h 53m

$635

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 22 results
1
2
3

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 August 7, 2025.
Read reviews from past customers who have flown Delta, SWISS, and United 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
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,987 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7.6
Good
1,692 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8,916 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7.4
Good
657 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
10,000 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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.

  • 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.

  • What is the cheapest month to book a flight from Florida Keys to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Florida Keys to London Heathrow Airport (average of $661). Flying from Florida Keys to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Dartford
Watford
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Florida Keys to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Heathrow flights
Orlando to Heathrow flights
Miami to London City flights
Orlando to Gatwick flights
Tampa to Heathrow flights
Miami to Gatwick flights
Orlando to London City flights
Miami to Stansted flights
Fort Lauderdale to Heathrow flights
Miami to Luton flights
Tampa to Gatwick flights
Tampa to London City flights
Orlando to Stansted flights
Fort Lauderdale to Gatwick flights
Jacksonville to Heathrow flights
West Palm Beach to Heathrow flights
Jacksonville to Gatwick flights
Orlando to Luton flights
West Palm Beach to Gatwick flights
Pensacola to Heathrow flights
Fort Myers to Heathrow flights
Jacksonville to London City flights
Tampa to Stansted flights
Sarasota to Heathrow flights
Daytona Beach to Heathrow flights
Tallahassee to Heathrow flights
Melbourne to Heathrow flights
Fort Myers to Gatwick flights
Tampa to Luton flights
Fort Lauderdale to London City flights
Pensacola to London City flights
Sarasota to Gatwick flights
Fort Lauderdale to Stansted flights
Valparaiso to Heathrow flights
Fort Myers to London City flights
Pensacola to Gatwick flights
Tallahassee to Gatwick flights
Miami to Southend flights
Panama City to Heathrow flights
Key West to Heathrow flights
Gainesville to Heathrow flights
Fort Lauderdale to Luton flights
Valparaiso to Gatwick flights
West Palm Beach to London City flights
Fort Myers to Stansted flights
Sarasota to London City flights
Valdosta to Heathrow flights
Tallahassee to London City flights
Daytona Beach to Gatwick flights
Daytona Beach to London City flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.