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

Virgin Atlantic, at £456, was found to be the cheapest airline from London to Key West.Alternate airlines flying return to your destination include Delta and British Airways. These flights start at 26% lower than the current average price 3 months from now.

What is the cheapest day to fly from London to Key West?

Travellers seeking maximum savings on their London to Key West flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What are the most popular routes from London to Key West?

The most popular route from London to Key West is London Gatwick - Key West. You may also consider London Heathrow - Key West or London City - Key West.

What is the cheapest day to fly round-trip from London to Key West?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 24% on the overall cost on flights from London to Key West.

How far in advance should I book a flight from London to Key West?

Users have found that booking a flight from London to Key West at least 23 days early can save you up to 68% on average compared to booking a flight this week. If booking 23 days before your flight isn’t an option for you, users have found flights from London to Key West for as little as £492 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £1,019 for flights departing within the next 3 days.

What is the cheapest month to fly from London to Key West?

September is one of the best times of the year to fly to Key West from London. Prices for September average £620 per person but you can even find prices for as low as £414. The most expensive prices can be found in the month of December. Opting for a September flight can save you 32% on your journey compared to booking in December

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

Key West (EYW), located 2.6 mi from the city center, is the airport you fly into when you book flights from London to Key West. 2 airlines have flights to Key West from London on a regular basis. Booking flights from London to Key West should not be difficult; the airport handles an average of 0 inbound flights from London per day.

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

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

How can I find direct flights from London to Key West?

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

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

Yes. Cheapflights offers flight deals from London 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.

£456+ Flights from London to Key West

Cheapflights Tip: The best prices from London to Key West are usually found in September or February, booked 80 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from London to Key West

Round-trip from	£456
Popular in	December
Cheapest in	September
Average price	£725

Virgin Atlantic
20/8-20/9
3 total stops
42h 37m total
London to Key West

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£22 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from London to Key West

Cheapest flights from London to Key West
Explore the most affordable flight options available from London to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Wed 20/820:55LHR - EYW

2 stops28h 17mVirgin Atlantic

Sat 20/918:10EYW - LHR

1 stop14h 20mVirgin Atlantic

Deal found 14/7£456

Thu 13/1118:55LCY - EYW

2 stops53h 49mVirgin Atlantic

Mon 17/1107:00EYW - LCY

2 stops31h 35mVirgin Atlantic

Deal found 12/7£511

Thu 28/809:55LHR - EYW

1 stop14h 12mBritish Airways

Thu 4/913:59EYW - LHR

1 stop15h 36mBritish Airways

Deal found 14/7£512

Thu 28/806:30LHR - EYW

2 stops18h 42mKLM

Thu 4/918:20EYW - LHR

1 stop14h 10mKLM

Deal found 13/7£519

Thu 28/806:30LHR - EYW

2 stops18h 42mDelta

Thu 4/911:52EYW - LHR

2 stops18h 33mDelta

Deal found 13/7£521

Thu 28/814:00LGW - EYW

1 stop28h 07mMultiple Airlines

Thu 4/908:55EYW - LGW

1 stop20h 05mMultiple Airlines

Deal found 13/7£546

Sun 17/806:15LHR - EYW

2 stops16h 12mAir France

Sun 7/918:20EYW - LHR

1 stop11h 50mAir France

Deal found 13/7£566

Thu 13/1110:00LCY - EYW

2 stops36h 12mDelta

Mon 17/1118:00EYW - LCY

2 stops34h 30mDelta

Deal found 11/7£597

Wed 20/816:40LHR - EYW

2 stops26h 45mUnited Airlines

Sat 20/915:05EYW - LHR

2 stops14h 35mUnited Airlines

Deal found 14/7£597

Wed 27/820:10LCY - EYW

2 stops29h 02mKLM

Wed 3/911:52EYW - LCY

2 stops14h 23mKLM

Deal found 13/7£613

Thu 28/808:45LCY - EYW

3 stops34h 40mMultiple Airlines

Thu 4/915:50EYW - LCY

2 stops21h 45mMultiple Airlines

Deal found 14/7£704

Sat 2/808:55LHR - EYW

2 stops15h 26mAmerican Airlines

Thu 7/811:26EYW - LHR

2 stops13h 54mAmerican Airlines

Deal found 13/7£782

Best flights from London to Key West
Discover carefully curated flight deals from London to Key West that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 July 2025.

Wed 20/820:55LHR - EYW

2 stops28h 17mVirgin Atlantic

Sat 20/918:10EYW - LHR

1 stop14h 20mVirgin Atlantic

Deal found 14/7£456

Fri 14/1107:45LCY - EYW

2 stops32h 14mDelta

Tue 18/1107:00EYW - LCY

2 stops28h 35mDelta

Deal found 14/7£510

Thu 28/809:55LHR - EYW

1 stop14h 12mBritish Airways

Thu 4/913:59EYW - LHR

1 stop15h 36mBritish Airways

Deal found 14/7£512

Thu 28/806:30LHR - EYW

2 stops18h 42mKLM

Thu 4/918:20EYW - LHR

1 stop14h 10mKLM

Deal found 13/7£519

Thu 28/814:00LGW - EYW

1 stop28h 07mMultiple Airlines

Thu 4/908:55EYW - LGW

1 stop20h 05mMultiple Airlines

Deal found 13/7£546

Sun 17/806:15LHR - EYW

2 stops16h 12mAir France

Sun 7/918:20EYW - LHR

1 stop11h 50mAir France

Deal found 13/7£566

Thu 1/114:30LHR - EYW

1 stop27h 39mAmerican Airlines

Sat 10/113:00EYW - LHR

1 stop13h 00mAmerican Airlines

Deal found 14/7£570

Wed 20/816:40LHR - EYW

2 stops26h 45mUnited Airlines

Sat 20/915:05EYW - LHR

2 stops14h 35mUnited Airlines

Deal found 14/7£597

Thu 1/110:40LGW - EYW

2 stops29h 42mTAP AIR PORTUGAL

Sat 10/112:07EYW - LGW

2 stops16h 43mTAP AIR PORTUGAL

Deal found 14/7£828

Thu 13/1118:55LCY - EYW

2 stops53h 49mVirgin Atlantic

Mon 17/1107:00EYW - LCY

2 stops31h 35mVirgin Atlantic

Deal found 12/7£511

Thu 28/806:30LHR - EYW

2 stops18h 42mDelta

Thu 4/911:52EYW - LHR

2 stops18h 33mDelta

Deal found 13/7£521

Wed 27/820:10LCY - EYW

2 stops29h 02mKLM

Wed 3/911:52EYW - LCY

2 stops14h 23mKLM

Deal found 13/7£613

Last-minute flights from London to Key West
Discover last-minute flight deals from London to Key West. Data last updated 15 July 2025 and is based on user searches.

Sat 2/808:55LHR - EYW

2 stops15h 26mAmerican Airlines

Thu 7/811:26EYW - LHR

2 stops13h 54mAmerican Airlines

Deal found 13/7£782

Sat 2/810:00LCY - EYW

2 stops38h 49mVirgin Atlantic

Thu 7/811:48EYW - LCY

2 stops16h 42mVirgin Atlantic

Deal found 13/7£2,052

Sun 17/806:15LHR - EYW

2 stops16h 12mAir France

Sun 7/918:20EYW - LHR

1 stop11h 50mAir France

Deal found 13/7£566

Wed 20/820:55LHR - EYW

2 stops28h 17mVirgin Atlantic

Sat 20/918:10EYW - LHR

1 stop14h 20mVirgin Atlantic

Deal found 14/7£456

Wed 20/816:40LHR - EYW

2 stops26h 45mUnited Airlines

Sat 20/915:05EYW - LHR

2 stops14h 35mUnited Airlines

Deal found 14/7£597

Wed 27/820:10LCY - EYW

2 stops29h 02mKLM

Wed 3/911:52EYW - LCY

2 stops14h 23mKLM

Deal found 13/7£613

Thu 28/809:55LHR - EYW

1 stop14h 12mBritish Airways

Thu 4/913:59EYW - LHR

1 stop15h 36mBritish Airways

Deal found 14/7£512

Thu 28/806:30LHR - EYW

2 stops18h 42mKLM

Thu 4/918:20EYW - LHR

1 stop14h 10mKLM

Deal found 13/7£519

Thu 28/806:30LHR - EYW

2 stops18h 42mDelta

Thu 4/911:52EYW - LHR

2 stops18h 33mDelta

Deal found 13/7£521

Thu 28/814:00LGW - EYW

1 stop28h 07mMultiple Airlines

Thu 4/908:55EYW - LGW

1 stop20h 05mMultiple Airlines

Deal found 13/7£546

Thu 28/808:45LCY - EYW

3 stops34h 40mMultiple Airlines

Thu 4/915:50EYW - LCY

2 stops21h 45mMultiple Airlines

Deal found 14/7£704

Thu 28/813:05LHR - EYW

3 stops25h 17mMultiple Airlines

Thu 4/908:55EYW - LHR

2 stops19h 40mMultiple Airlines

Deal found 14/7£1,382

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 20/8

20:55-20:12

2 stops28h 17m

Key West

Sat 20/9

18:10-13:30

1 stop14h 20m

£456

LondonKey West

LCY - EYW

LCYEYW

London City

Thu 13/11

18:55-19:44

2 stops53h 49m

Key West

Mon 17/11

07:00-19:35

2 stops31h 35m

£511

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 28/8

09:55-19:07

1 stop14h 12m

Key West

Thu 4/9

13:59-10:35

1 stop15h 36m

£512

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 28/8

06:30-20:12

2 stops18h 42m

Key West

Thu 4/9

18:20-13:30

1 stop14h 10m

£519

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 28/8

06:30-20:12

2 stops18h 42m

Key West

Thu 4/9

11:52-11:25

2 stops18h 33m

£521

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 28/8

14:00-13:07

1 stop28h 07m

Key West

Thu 4/9

08:55-10:00

1 stop20h 05m

£546

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 17/8

06:15-17:27

2 stops16h 12m

Key West

Sun 7/9

18:20-11:10

1 stop11h 50m

£566

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 1/1

14:30-13:09

1 stop27h 39m

Key West

Sat 10/1

13:00-07:00

1 stop13h 00m

£570

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 20/8

16:40-14:25

2 stops26h 45m

Key West

Sat 20/9

15:05-10:40

2 stops14h 35m

£597

LondonKey West

LCY - EYW

LCYEYW

London City

Thu 13/11

10:00-17:12

2 stops36h 12m

Key West

Mon 17/11

18:00-09:30

2 stops34h 30m

£597

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 16 results

Best time to book a flight from London to Key West

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

How far ahead should I book a flight from London to Key West?

The price you pay for your flight from London to Key West may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

It’s optimal to fly from London to Key West in the morning. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight in the evening.

How much does it cost for a return flight from London to Key West?

Reviews of airlines servicing Key West

Check out reviews from past customers who have flown with Delta, KLM, andAir France from London to Key West to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,956 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

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

7,956 reviews

Delta

8.0

Very Good

7,956 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

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

KLM

7.8

Good

1,372 reviews

Delta

8.0

Very Good

7,956 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

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

Air France

7.5

Good

1,466 reviews

Delta

8.0

Very Good

7,956 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

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

8,861 reviews

Delta

8.0

Very Good

7,956 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

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

7.4

Good

655 reviews

Delta

8.0

Very Good

7,956 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

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

What airport do you fly into for flights to Key West from London?
Key West (EYW), located 2.6 mi from the city center, is the airport you fly into when you book flights from London to Key West. 2 airlines have flights to Key West from London on a regular basis. Booking flights from London to Key West should not be difficult; the airport handles an average of 0 inbound flights from London per day.
What are the cheapest airlines flying from London to Key West round-trip?
Virgin Atlantic, at £456, was found to be the cheapest airline from London to Key West.Alternate airlines flying return to your destination include Delta and British Airways. These flights start at 26% lower than the current average price 3 months from now.
What are the most popular routes from London to Key West?
The most popular route from London to Key West is London Gatwick - Key West. You may also consider London Heathrow - Key West or London City - Key West.
Can I find deals for flights from London to Key West that include hotel bookings?
Yes. In addition to deals on London to Key West flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Key West?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Key West.
Can I find deals for business class flights from London to Key West?
Yes. Cheapflights offers flight deals from London 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from London to Key West

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£428	Average£704	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£448	Average£505	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from London 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 London to Key West?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Key West from London.

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

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

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

Of course! You can now track prices for flights from London to Key West 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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Cheap flights from London to Key West from £456

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Key West are usually found in September or February, booked 80 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from London to Key West

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from London to Key West

Cheapest flights from London to Key WestExplore the most affordable flight options available from London to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Explore the most affordable flight options available from London to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Key West that are best for you.

Best time to book a flight from London to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from London with our price prediction graph.

Cheapflights Insights

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

How far ahead should I book a flight from London to Key West?

Use this chart to determine the optimal time to book a return flight from London to Key West. Price data was last updated on 11 July 2025.

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

Find hourly flight availability from London 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 15 July 2025.

How much does it cost for a return flight from London to Key West?

Reviews of airlines servicing Key West

Check out reviews from past customers who have flown with Delta, KLM, andAir France from London to Key West to help guide your decision. You can also see how each airline stacks up 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 London 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?

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

What are the most popular routes from London to Key West?

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

How can I find direct flights from London to Key West?

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

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 London to Key West

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from London to Key West

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 London to Key West?

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

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

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

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Cheapest flights from London to Key West
Explore the most affordable flight options available from London to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.