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Cheap flights from London Heathrow Airport to Key West from £495

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 6 November 2025.

Round-trip from

£495

Popular in

March

Cheapest in

May

Average price

£603
Virgin Atlantic
  • Virgin Atlantic
  • 6/12-13/12
  • 2 total stops
  • 36h 31m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£73 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from Heathrow to Key West

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Key West
Explore the most affordable flight options available from Heathrow to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 November 2025.

Sat 6/1208:55LHR - EYW
1 stop16h 11mVirgin Atlantic
Sat 13/1207:40EYW - LHR
1 stop20h 20mVirgin Atlantic
Deal found 4/11£495
Wed 31/1208:55LHR - EYW
1 stop30h 57mDelta
Sat 17/114:45EYW - LHR
2 stops15h 05mDelta
Deal found 4/11£534
Sat 6/1206:15LHR - EYW
2 stops21h 52mBritish Airways
Sat 13/1216:20EYW - LHR
1 stop10h 55mBritish Airways
Deal found 4/11£555
Fri 26/1215:50LHR - EYW
1 stop34h 08mVirgin Atlantic
Fri 9/112:26EYW - LHR
1 stop14h 24mVirgin Atlantic
Deal found 4/11£598
Fri 26/1212:05LHR - EYW
1 stop32h 43mUnited Airlines
Fri 9/116:15EYW - LHR
2 stops33h 25mUnited Airlines
Deal found 4/11£643
Wed 12/1109:20LHR - EYW
1 stop31h 33mJetBlue
Mon 17/1112:45EYW - LHR
1 stop13h 10mJetBlue
Deal found 4/11£644
Sat 6/1213:25LHR - EYW
3 stops26h 55mMultiple Airlines
Sat 13/1214:30EYW - LHR
3 stops35h 40mMultiple Airlines
Deal found 4/11£689

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Key West 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 858,174 searches. Data last updated 6 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Key West that are best for you.

Fly from

Heathrow

Fly to

Key West

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 6/12

08:55-20:06

1 stop16h 11m

Key West

Sat 13/12

07:40-09:00

1 stop20h 20m

£495

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 6/3

19:40-18:55

2 stops28h 15m

Key West

Tue 10/3

20:01-12:05

1 stop12h 04m

£508

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 6/3

06:15-19:24

2 stops18h 09m

Key West

Tue 10/3

15:08-08:40

2 stops13h 32m

£513

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 6/3

08:55-19:42

1 stop15h 47m

Key West

Tue 10/3

11:45-07:50

1 stop16h 05m

£517

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 12/3

14:30-23:59

1 stop13h 29m

Key West

Mon 16/3

15:08-07:20

1 stop12h 12m

£532

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 8/4

10:55-19:44

1 stop13h 49m

Key West

Mon 13/4

18:00-13:30

1 stop14h 30m

£533

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 31/12

08:55-10:52

1 stop30h 57m

Key West

Sat 17/1

14:45-10:50

2 stops15h 05m

£534

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Best time to book a flight from Heathrow to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Heathrow 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Key West

What is the cheapest month to book a flight from London Heathrow Airport to Key West?

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Key West (average of £448). Flying from London Heathrow Airport to Key West in July is currently the most expensive (average of £658). 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.

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. 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 Key West. Reviews last updated 6 November 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Key West, such as Virgin Atlantic, American Airlines, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
672 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
672 reviews
Virgin Atlantic
7.5
Good
672 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
American Airlines
7.2
Good
11,040 reviews
Virgin Atlantic
7.5
Good
672 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,499 reviews
Virgin Atlantic
7.5
Good
672 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Key West from London Heathrow?

    Most people fly into Key West (EYW) if they book a flight to Key West from London Heathrow. On average, Key West has 0 inbound flights from London Heathrow per day from 3 airlines. Key West is conveniently located just 2.6 mi from Key West’s city center.

  • How long is the flight from London Heathrow Airport to Key West?

    Virgin Atlantic, British Airways, and American Airlines can get you from London Heathrow Airport to Key West in just under 16h 11m. Your travel time can differ by up to 12h 04m. The distance between London Heathrow Airport and Key West is about 4539 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Key West round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Key West round-trip from £464. Other airlines that can offer you cheap pricing are Virgin Atlantic, from £505, and American Airlines, from £532. British Airways is priced at 33% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Heathrow to Key West that include hotel bookings?

    Yes. In addition to deals on Heathrow to Key West flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Key West.

  • Can I find deals for business class flights from Heathrow to Key West?

    Yes. Cheapflights offers flight deals from Heathrow to Key West 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 London Heathrow Airport to Key West?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Key West (average of £448). Flying from London Heathrow Airport to Key West in July is currently the most expensive (average of £658). 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

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Top 3 airlines flying from Heathrow to Key West

Discover the top 3 airlines that operate flights from Heathrow to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£464Average£558FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£505Average£921FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£532Average£572FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Key West?

Cheapflights helps you search for flights from Heathrow to Key West via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Key West?

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Can Cheapflights find flights from Heathrow to Key West with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Key West flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Key West become cheaper?

Yes! Start tracking prices for Heathrow to Key West flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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