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Cheap flights from London Heathrow Airport to Key West from £407

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
26 Jan — 2 Feb1
1 adult

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 21 January 2025.

Round-trip from

£407

Popular in

August

Cheapest in

April

Average price

£640
United Airlines
  • United Airlines
  • 4/3-11/3
  • 3 total stops
  • 40h 41m total
  • London to Key West
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High demand for flights, 16% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Heathrow to Key West

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 21 January 2025.

Tue 4/313:30LHR - EYW
2 stops26h 46mUnited Airlines
Tue 11/312:45EYW - LHR
1 stop13h 55mUnited Airlines
Deal found 20/1£407
Fri 7/209:20LHR - EYW
1 stop35h 41mLufthansa
Tue 11/215:50EYW - LHR
1 stop35h 05mLufthansa
Deal found 20/1£476
Tue 4/310:50LHR - EYW
1 stop14h 21mVirgin Atlantic
Tue 11/314:45EYW - LHR
1 stop11h 35mVirgin Atlantic
Deal found 20/1£496
Wed 2/406:15LHR - EYW
2 stops19h 15mDelta
Sun 6/419:34EYW - LHR
2 stops19h 26mDelta
Deal found 20/1£891

Find flights from Heathrow to Key West within your budget

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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 4/3

13:30-11:16

2 stops26h 46m

Key West

Tue 11/3

12:45-06:40

1 stop13h 55m

£407

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 7/2

09:20-16:01

1 stop35h 41m

Key West

Tue 11/2

15:50-07:55

1 stop35h 05m

£476

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 4/3

10:50-20:11

1 stop14h 21m

Key West

Tue 11/3

14:45-06:20

1 stop11h 35m

£496

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 2/4

06:15-20:30

2 stops19h 15m

Key West

Sun 6/4

19:34-20:00

2 stops19h 26m

£891

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 2/3

09:50-10:10

3 stops53h 20m

£500

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 2/3

09:50-18:56

1 stop14h 06m

£577

Flights are sorted by cheapest return flights first.

Deals found on 20/1

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.

Travel insights for flights from Heathrow to Key West

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

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

Find hourly flight availability from Heathrow to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 January 2025.

When flying from London Heathrow Airport to Key West, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 21% versus a flight at midday.

Rainfall in Key West by month

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

In terms of precipitation, rainfall in Key West ranges from 38.0 - 170.0 inches per month. September is typically the wettest month, when rainfall can reach 170.0 mm. February is typically the driest time to visit Key West when rainfall is around 38.0 mm.

Temperature in Key West by month

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

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.0 C).

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 21 January 2025.
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Delta
8.0
Very Good
8,521 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Virgin Atlantic
7.5
Good
665 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Lufthansa
6.8
Okay
7,106 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

British Airways
6.6
Okay
6,834 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

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.

  • 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 £407. Other airlines that can offer you cheap pricing are Lufthansa, from £476, and Virgin Atlantic, from £496. United Airlines is priced at 38% 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.

See more FAQs

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Alternative routes for Heathrow to Key West

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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 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£469Average£622FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£484Average£610FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£581Average£944FlexibilityNo cancel feeOn-time76%
Search Finnair flights

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 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?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Key West 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 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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