HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$202+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LHR
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Round-trip from

$486
(eDestinos)

One-way from

$202
(Booking.com)

Popular in

June

Cheapest in

May

Average price

$724
From Florida Keys to London Heathrow
Search Deals
One-way flight from Florida Keys to London Heathrow
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 1, 2025.

This eDestinos deal was found by Cheapflights users on 4/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/298:45 pmMIA - LHR
1 stop32h 10mScandinavian Airlines
Wed 11/121:55 pmLHR - MIA
1 stop33h 00mScandinavian Airlines
Deal found 4/28$470
This eDestinos deal was found by Cheapflights users on 4/30. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/302:34 pmMIA - LHR
1 stop11h 16mBritish Airways
Fri 10/109:55 amLHR - MIA
Nonstop9h 35mBritish Airways
Deal found 4/30$486
This Gotogate deal was found by Cheapflights users on 4/30. 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.
Sun 10/2612:35 amMIA - LHR
1 stop18h 05mTAP AIR PORTUGAL
Tue 11/116:30 pmLHR - MIA
1 stop25h 20mTAP AIR PORTUGAL
Deal found 4/30$530
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 7/315:00 pmMIA - LHR
Nonstop8h 55mAmerican Airlines
Tue 8/2612:15 pmLHR - MIA
Nonstop9h 25mAmerican Airlines
Deal found 4/29$544
This SWISS deal was found by Cheapflights users on 4/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/127:40 pmMIA - LHR
1 stop12h 20mSWISS
Sun 5/186:40 pmLHR - MIA
1 stop27h 50mSWISS
Deal found 4/29$602
This Virgin Atlantic deal was found by Cheapflights users on 4/28. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/127:25 pmMIA - LHR
Nonstop9h 00mVirgin Atlantic
Tue 5/209:00 amLHR - MIA
1 stop16h 45mVirgin Atlantic
Deal found 4/28$615
This Delta deal was found by Cheapflights users on 4/29. 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.
Mon 5/127:30 pmMIA - LHR
1 stop13h 00mDelta
Mon 5/199:00 amLHR - MIA
1 stop16h 35mDelta
Deal found 4/29$620
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/32:03 pmMIA - LHR
1 stop11h 42mKLM
Wed 10/89:20 amLHR - MIA
1 stop14h 28mKLM
Deal found 4/28$638
This eDestinos deal was found by Cheapflights users on 4/29. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:15 pmMIA - LHR
1 stop12h 35mIcelandair
Mon 12/228:40 pmLHR - MIA
1 stop29h 15mIcelandair
Deal found 4/29$640
This Iberia deal was found by Cheapflights users on 4/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/217:35 pmMIA - LHR
Nonstop8h 50mIberia
Tue 5/2711:30 amLHR - MIA
1 stop13h 45mIberia
Deal found 4/29$673
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Fri 5/167:00 amMIA - LHR
2 stops28h 25mMultiple Airlines
Sun 5/188:30 amLHR - MIA
2 stops33h 36mMultiple Airlines
Deal found 4/29$677
This StudentUniverse deal was found by Cheapflights users on 4/30. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/131:35 pmMIA - LHR
1 stop11h 45mFinnair
Wed 9/38:15 pmLHR - MIA
2 stops28h 40mFinnair
Deal found 4/30$682

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 May 1, 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 9/30

2:34 pm-6:50 am

1 stop11h 16m

London Heathrow

Fri 10/10

9:55 am-2:30 pm

Nonstop9h 35m

$486

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 10/27

8:45 pm-9:20 am

1 stop32h 35m

London Heathrow

Mon 11/3

10:20 am-5:55 pm

1 stop36h 35m

$503

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 10/26

12:35 am-10:40 pm

1 stop18h 05m

London Heathrow

Tue 11/11

6:30 pm-2:50 pm

1 stop25h 20m

$530

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 8/22

4:28 pm-9:40 am

1 stop12h 12m

London Heathrow

Fri 8/29

9:55 am-2:25 pm

Nonstop9h 30m

$549

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 6/9

7:25 pm-9:25 am

Nonstop9h 00m

London Heathrow

Mon 6/16

11:30 am-8:35 pm

1 stop14h 05m

$616

MiamiLondon

MIA - LHR

MIALHR

Miami

Fri 8/22

7:25 pm-9:25 am

Nonstop9h 00m

London Heathrow

Fri 8/29

3:55 pm-8:35 pm

Nonstop9h 40m

$624

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 6/15

3:10 pm-8:50 am

1 stop12h 40m

London Heathrow

Mon 8/11

1:05 pm-9:07 pm

1 stop13h 02m

$674

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 8/13

1:35 pm-6:20 am

1 stop11h 45m

London Heathrow

Wed 9/3

8:15 pm-7:55 pm

2 stops28h 40m

$682

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 5/19

2:55 pm-6:55 am

1 stop11h 00m

London Heathrow

Fri 5/23

2:10 pm-6:50 pm

Nonstop9h 40m

$685

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 9/3

1:25 pm-10:40 am

2 stops16h 15m

London Heathrow

Wed 10/8

7:30 am-6:50 pm

2 stops16h 20m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 38 results
1
2
3
4

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

What is the cheapest time of day to fly from EOA to LHR?

Find hourly flight availability from Florida Keys 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 May 1, 2025.

When flying from Florida Keys to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 May 1, 2025.
Read through reviews of airlines operating flights from Florida Keys to London, such as Delta, KLM and Finnair. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
1,275 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
1,446 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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?

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $202. Royal Air Maroc flights start at $344 while deals on Finnair start at $379 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.

  • 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 $1,103). 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 Florida Keys?

Book flights to Florida Keys if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Horley
Canterbury
Harrow
Wembley
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Borehamwood
Folkestone
Ilford
Broadway
Aylesbury

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
Orlando to Gatwick flights
Tampa to Heathrow flights
Miami to London City flights
Miami to Gatwick flights
Tampa to Gatwick flights
Orlando to London City flights
Tampa to London City flights
Miami to Stansted flights
Jacksonville to Heathrow flights
Fort Lauderdale to Heathrow flights
Jacksonville to Gatwick flights
Jacksonville to London City flights
West Palm Beach to Heathrow flights
Fort Lauderdale to Gatwick flights
Orlando to Luton flights
Orlando to Stansted flights
Fort Myers to Heathrow flights
Miami to Luton flights
Pensacola to Heathrow flights
Fort Myers to Gatwick flights
West Palm Beach to Gatwick flights
Panama City to Heathrow flights
Sarasota to Heathrow flights
Fort Lauderdale to London City flights
Fort Myers to London City flights
Melbourne to Heathrow flights
Tallahassee to Heathrow flights
Pensacola to London City flights
Tampa to Stansted flights
Daytona Beach to Heathrow flights
Pensacola to Gatwick flights
Tallahassee to Gatwick flights
Valparaiso to Heathrow flights
Fort Lauderdale to Stansted flights
Tampa to Luton flights
Gainesville to Heathrow flights
Sarasota to Gatwick flights
Key West to Heathrow flights
Key West to Gatwick flights
West Palm Beach to London City flights
Fort Lauderdale to Luton flights
Valparaiso to Gatwick flights
Gainesville to Gatwick flights
Tallahassee to London City flights
Sarasota to London City flights
Daytona Beach to Gatwick flights
Valparaiso to London City flights
Fort Myers to Stansted 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.