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

For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £217. Users have also found prices from £236 and £259 on British Airways and TAP AIR PORTUGAL, respectively.

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 £163). 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.

How far in advance should I book a flight from Florida Keys to London Heathrow Airport?

To save on the cost of your flight from Florida Keys to London Heathrow Airport, book at least 23 days before your planned departure. Booking around this time can save you about 32% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £533 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £647.

What is the cheapest month to fly from Florida Keys to London Heathrow Airport?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Florida Keys in February are about £514 on average during February, but can be found for as low as £260.

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

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.

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.

£206+ Flights from Florida Keys to London Heathrow Airport

Cheap flight deals from Florida Keys to Heathrow

Round-trip from	£399
One-way from	£206
Popular in	December
Cheapest in	May
Average price	£1,108

SWISS
3/4-29/4
2 total stops
27h 20m total
Florida Keys to London

Search Deals

1/4
2 total stops
35h 08m total
Florida Keys to London

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£92 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£45 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 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 23 February 2025.

Thu 3/416:50MIA - LHR

1 stop13h 35mSWISS

Tue 29/408:45LHR - MIA

1 stop13h 45mSWISS

Deal found 22/2£399

Mon 10/317:30MIA - LHR

1 stop20h 00mTAP AIR PORTUGAL

Wed 19/306:00LHR - MIA

1 stop20h 45mTAP AIR PORTUGAL

Deal found 22/2£415

Thu 20/316:29MIA - LHR

3 stops34h 41mMultiple Airlines

Sun 23/306:00LHR - MIA

3 stops32h 37mMultiple Airlines

Deal found 22/2£447

Mon 13/1016:10MIA - LHR

1 stop10h 55mIberia

Fri 31/1011:45LHR - MIA

Nonstop10h 05mIberia

Deal found 22/2£469

Mon 24/1119:45MIA - LHR

2 stops15h 40mScandinavian Airlines

Sun 30/1119:30LHR - MIA

1 stop27h 25mScandinavian Airlines

Deal found 22/2£483

Mon 15/917:00MIA - LHR

Nonstop8h 55mBritish Airways

Tue 30/909:55LHR - MIA

Nonstop9h 30mBritish Airways

Deal found 22/2£495

Mon 3/306:00MIA - LHR

1 stop18h 55mJetBlue

Wed 12/308:25LHR - MIA

1 stop18h 09mJetBlue

Deal found 22/2£503

Mon 10/312:51MIA - LHR

1 stop13h 49mUnited Airlines

Tue 25/308:55LHR - MIA

1 stop13h 35mUnited Airlines

Deal found 22/2£510

Wed 23/419:25MIA - LHR

Nonstop9h 00mDelta

Tue 29/406:30LHR - MIA

1 stop12h 25mDelta

Deal found 23/2£514

Mon 22/913:40MIA - LHR

1 stop15h 20mAir Canada

Fri 3/1009:30LHR - MIA

2 stops16h 18mAir Canada

Deal found 22/2£531

Sun 6/419:25MIA - LHR

Nonstop9h 00mVirgin Atlantic

Mon 21/417:35LHR - MIA

1 stop25h 40mVirgin Atlantic

Deal found 22/2£548

Fri 21/319:30MIA - LHR

1 stop12h 10mAmerican Airlines

Fri 28/311:45LHR - MIA

Nonstop10h 00mAmerican Airlines

Deal found 22/2£566

Best flights from Florida Keys to Heathrow
Discover carefully curated flight deals from Florida Keys to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 February 2025.

Thu 3/416:50MIA - LHR

1 stop13h 35mSWISS

Tue 29/408:45LHR - MIA

1 stop13h 45mSWISS

Deal found 22/2£399

Mon 10/317:30MIA - LHR

1 stop20h 00mTAP AIR PORTUGAL

Wed 19/306:00LHR - MIA

1 stop20h 45mTAP AIR PORTUGAL

Deal found 22/2£415

Thu 20/316:29MIA - LHR

3 stops34h 41mMultiple Airlines

Sun 23/306:00LHR - MIA

3 stops32h 37mMultiple Airlines

Deal found 22/2£447

Wed 30/417:00MIA - LHR

Nonstop8h 55mIberia

Wed 7/511:30LHR - MIA

1 stop13h 45mIberia

Deal found 22/2£489

Wed 19/317:54MIA - LHR

1 stop11h 36mJetBlue

Mon 31/308:15LHR - MIA

1 stop13h 35mJetBlue

Deal found 23/2£503

Wed 30/417:00MIA - LHR

Nonstop8h 55mBritish Airways

Wed 7/509:55LHR - MIA

Nonstop9h 35mBritish Airways

Deal found 22/2£505

Mon 10/312:51MIA - LHR

1 stop13h 49mUnited Airlines

Tue 25/308:55LHR - MIA

1 stop13h 35mUnited Airlines

Deal found 22/2£510

Wed 23/419:25MIA - LHR

Nonstop9h 00mDelta

Tue 29/406:30LHR - MIA

1 stop12h 25mDelta

Deal found 23/2£514

Mon 10/323:05MIA - LHR

Nonstop8h 25mFinnair

Tue 25/311:45LHR - MIA

Nonstop10h 00mFinnair

Deal found 22/2£517

Wed 26/307:45MIA - LHR

2 stops19h 25mAir Canada

Tue 8/414:05LHR - MIA

1 stop27h 43mAir Canada

Deal found 23/2£531

Sun 6/419:25MIA - LHR

Nonstop9h 00mVirgin Atlantic

Mon 21/417:35LHR - MIA

1 stop25h 40mVirgin Atlantic

Deal found 22/2£548

Fri 21/319:30MIA - LHR

1 stop12h 10mAmerican Airlines

Fri 28/311:45LHR - MIA

Nonstop10h 00mAmerican Airlines

Deal found 22/2£566

Direct flights from Florida Keys to Heathrow
Explore direct flight options from Florida Keys to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 23 February 2025.

Tue 8/419:25MIA - LHR

Nonstop9h 00mVirgin Atlantic

Tue 15/410:45LHR - MIA

Nonstop10h 00mVirgin Atlantic

Deal found 22/2£503

Thu 3/417:00MIA - LHR

Nonstop8h 55mBritish Airways

Thu 10/409:55LHR - MIA

Nonstop9h 35mBritish Airways

Deal found 22/2£504

Tue 1/419:35MIA - LHR

Nonstop8h 50mIberia

Wed 30/409:55LHR - MIA

Nonstop9h 35mIberia

Deal found 22/2£510

Mon 10/323:05MIA - LHR

Nonstop8h 25mFinnair

Tue 25/309:50LHR - MIA

Nonstop9h 55mFinnair

Deal found 22/2£510

Mon 10/318:00MIA - LHR

Nonstop8h 45mDelta

Thu 20/314:00LHR - MIA

Nonstop10h 25mDelta

Deal found 22/2£524

Last-minute flights from Florida Keys to Heathrow
Discover last-minute flight deals from Florida Keys to Heathrow. Data last updated 23 February 2025 and is based on user searches.

Fri 28/216:52MIA - LHR

1 stop12h 58mUnited Airlines

Fri 14/308:00LHR - MIA

2 stops18h 22mUnited Airlines

Deal found 23/2£756

Sat 1/313:17MIA - LHR

3 stops26h 18mMultiple Airlines

Sat 8/306:40LHR - MIA

1 stop18h 30mMultiple Airlines

Deal found 22/2£502

Sat 1/323:10MIA - LHR

1 stop26h 20mAir Canada

Thu 13/314:30LHR - MIA

1 stop13h 27mAir Canada

Deal found 22/2£710

Sun 2/317:00MIA - LHR

Nonstop8h 45mDelta

Tue 11/314:00LHR - MIA

Nonstop10h 25mDelta

Deal found 22/2£701

Sun 2/319:49MIA - LHR

Nonstop8h 51mBritish Airways

Sat 8/318:45LHR - MIA

1 stop24h 15mBritish Airways

Deal found 22/2£747

Sun 2/318:45MIA - LHR

1 stop17h 20mLufthansa

Sat 8/320:15LHR - MIA

2 stops23h 20mLufthansa

Deal found 23/2£779

Mon 3/306:00MIA - LHR

1 stop18h 55mJetBlue

Wed 12/308:25LHR - MIA

1 stop18h 09mJetBlue

Deal found 22/2£503

Mon 3/308:25MIA - LHR

2 stops18h 40mAer Lingus

Wed 12/307:50LHR - MIA

1 stop14h 10mAer Lingus

Deal found 23/2£646

Mon 3/319:49MIA - LHR

Nonstop8h 51mFinnair

Mon 24/318:10LHR - MIA

1 stop27h 30mFinnair

Deal found 21/2£679

Wed 5/323:30MIA - LHR

1 stop13h 00mTAP AIR PORTUGAL

Sun 9/318:30LHR - MIA

1 stop25h 15mTAP AIR PORTUGAL

Deal found 21/2£520

Wed 5/319:49MIA - LHR

Nonstop8h 51mIberia

Tue 18/311:25LHR - MIA

1 stop14h 05mIberia

Deal found 23/2£684

Wed 5/311:33MIA - LHR

2 stops15h 22mAir France

Tue 18/309:00LHR - MIA

2 stops19h 45mAir France

Deal found 23/2£749

One-way flights from Florida Keys to Heathrow
Search for one-way flight options from Florida Keys to Heathrow. Find affordable one-way fares based on user searches. Data last updated 23 February 2025.

Tue 1/419:47MIA - LHR

2 stops35h 08mMultiple Airlines

Deal found 21/2£206

Wed 5/309:52MIA - LHR

1 stop18h 38mJetBlue

Deal found 22/2£217

Mon 24/323:05MIA - LHR

Nonstop8h 25mBritish Airways

Deal found 22/2£236

Sun 30/300:35MIA - LHR

1 stop13h 15mTAP AIR PORTUGAL

Deal found 22/2£259

Fri 16/517:00MIA - LHR

Nonstop8h 55mFinnair

Deal found 22/2£310

Sun 27/408:00MIA - LHR

1 stop17h 30mAir Canada

Deal found 22/2£324

Wed 26/322:15MIA - LHR

Nonstop8h 45mVirgin Atlantic

Deal found 22/2£329

Sun 23/319:50MIA - LHR

1 stop11h 35mAer Lingus

Deal found 22/2£333

Mon 28/419:32MIA - LHR

1 stop12h 58mKLM

Deal found 22/2£335

Tue 18/310:20MIA - LHR

2 stops16h 50mUnited Airlines

Deal found 22/2£343

Sun 23/318:10MIA - LHR

2 stops23h 15mAir France

Deal found 21/2£377

Find flights from Florida Keys to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 3/4

16:50-11:25

1 stop13h 35m

London Heathrow

Tue 29/4

08:45-17:30

1 stop13h 45m

£399

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 10/3

17:30-17:30

1 stop20h 00m

London Heathrow

Wed 19/3

06:00-22:45

1 stop20h 45m

£415

MiamiLondon

MIA - LHR

MIALHR

Miami

Thu 20/3

16:29-07:10

3 stops34h 41m

London Heathrow

Sun 23/3

06:00-10:37

3 stops32h 37m

£447

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 30/4

17:00-06:55

Nonstop8h 55m

London Heathrow

Wed 7/5

11:30-20:15

1 stop13h 45m

£489

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 19/3

17:54-09:30

1 stop11h 36m

London Heathrow

Fri 28/3

07:25-16:39

1 stop13h 14m

£503

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 30/4

17:00-06:55

Nonstop8h 55m

London Heathrow

Wed 7/5

09:55-14:30

Nonstop9h 35m

£505

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 10/3

12:51-06:40

1 stop13h 49m

London Heathrow

Tue 25/3

08:55-18:30

1 stop13h 35m

£510

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 23/4

19:25-09:25

Nonstop9h 00m

London Heathrow

Tue 29/4

06:30-13:55

1 stop12h 25m

£514

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 26/3

07:45-07:10

2 stops19h 25m

London Heathrow

Tue 8/4

14:05-12:48

1 stop27h 43m

£531

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 6/4

19:25-09:25

Nonstop9h 00m

London Heathrow

Mon 21/4

17:35-14:15

1 stop25h 40m

£548

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 27 results

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.

Travel insights for flights from Florida Keys to Heathrow

Get recent, data-driven insights about flights from Florida Keys to Heathrow including ideal travel times, pricing trends, and more.

Rainfall in Heathrow 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

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 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

8,203 reviews

Check prices

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

8,203 reviews

Delta

8.0

Very Good

8,203 reviews

Check prices

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

1,332 reviews

Delta

8.0

Very Good

8,203 reviews

Check prices

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

1,271 reviews

Delta

8.0

Very Good

8,203 reviews

Check prices

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

1,568 reviews

Delta

8.0

Very Good

8,203 reviews

Check prices

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.

Virgin Atlantic

7.5

Good

653 reviews

Delta

8.0

Very Good

8,203 reviews

Check prices

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

What are the cheapest airlines to fly from Florida Keys to London Heathrow Airport one-way?
For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £217. Users have also found prices from £236 and £259 on British Airways and TAP AIR PORTUGAL, 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 £163). 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

Deal

Hounslow

Milton Keynes

Croydon

Gatwick

Slough

Luton

Ilford

Hayes

Eastbourne

Swindon

Northampton

Wembley

Southend-on-Sea

Ipswich

Winchester

Maidstone

Crawley

Southall

Watford

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Florida Keys to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£630	Average£1,152	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Fly with Cheapflights

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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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.

Cheap flights from Florida Keys to London Heathrow Airport from £206

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.

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 23 February 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Florida Keys to Heathrow

Cheapest flights from Florida Keys to HeathrowExplore 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 23 February 2025.

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 23 February 2025.

Find flights from Florida Keys to Heathrow within your budget

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.

Travel insights for flights from Florida Keys to Heathrow

Get recent, data-driven insights about flights from Florida Keys to Heathrow including ideal travel times, pricing trends, and more.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

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.

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?

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

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

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

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

Travelling to a place near Florida Keys?

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.

Top airline flying from Florida Keys to Heathrow

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?

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

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

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

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Book with Flexibility

Travel Smart

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 23 February 2025.