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 £458. Other airlines that can offer you cheap pricing are British Airways, from £515, and Royal Air Maroc, from £517. Virgin Atlantic is priced at 29% lower than the current average price of a flight leaving 3 months from now.

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

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

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

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Key West. Check prices with Cheapflights to find a great deal for your trip.

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

Find a great deal and save up to 66% by booking at least 23 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Key West within the next two weeks, with the cheapest ticket starting at £487.

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

The best pricing can be found in the month of September. Prices to Key West from London Heathrow Airport average £621. You can even find prices in September for less than £621, as users have found deals to Key West from as low as £411. The month of December appears to be one of the more expensive times to travel to Key West from London Heathrow Airport. Flying in the targeted month can save you up to 36%.

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

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.

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 2 airlines. Key West is conveniently located just 2.6 mi from Key West’s city center.

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.

£458+ Flights from London Heathrow Airport to Key West

Cheap flight deals from Heathrow to Key West

Round-trip from	£458
Popular in	April
Cheapest in	March
Average price	£746

Virgin Atlantic
10/9-17/9
3 total stops
41h 49m total
London to Key West

Search Deals

High demand for flights, 7% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

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 13 June 2025.

Wed 10/911:45LHR - EYW

2 stops36h 59mVirgin Atlantic

Wed 17/911:45EYW - LHR

2 stops14h 30mVirgin Atlantic

Deal found 12/6£458

Tue 8/713:40LHR - EYW

2 stops27h 20mBritish Airways

Mon 14/713:25EYW - LHR

2 stops13h 20mBritish Airways

Deal found 11/6£515

Tue 8/713:40LHR - EYW

2 stops27h 20mRoyal Air Maroc

Mon 14/716:48EYW - LHR

1 stop11h 17mRoyal Air Maroc

Deal found 12/6£517

Tue 8/713:40LHR - EYW

2 stops27h 20mAlaska Airlines

Mon 14/716:48EYW - LHR

1 stop11h 17mAlaska Airlines

Deal found 11/6£519

Tue 8/713:40LHR - EYW

1 stop28h 15mIberia

Mon 14/716:48EYW - LHR

1 stop11h 17mIberia

Deal found 11/6£523

Tue 8/719:05LHR - EYW

2 stops21h 55mAmerican Airlines

Mon 14/712:47EYW - LHR

2 stops14h 03mAmerican Airlines

Deal found 12/6£538

Wed 9/716:40LHR - EYW

2 stops25h 32mUnited Airlines

Wed 16/714:12EYW - LHR

2 stops15h 28mUnited Airlines

Deal found 12/6£603

Sun 27/708:55LHR - EYW

2 stops15h 26mMultiple Airlines

Sun 3/819:51EYW - LHR

1 stop30h 04mMultiple Airlines

Deal found 12/6£689

Sun 27/720:10LHR - EYW

2 stops19h 41mDelta

Thu 7/814:03EYW - LHR

1 stop18h 27mDelta

Deal found 12/6£699

Sat 26/706:15LHR - EYW

2 stops18h 34mAir France

Sat 2/811:48EYW - LHR

2 stops16h 37mAir France

Deal found 11/6£907

Best flights from Heathrow to Key West
Discover carefully curated flight deals from Heathrow to Key West that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 June 2025.

Wed 10/920:55LHR - EYW

2 stops27h 49mVirgin Atlantic

Wed 17/911:45EYW - LHR

1 stop14h 00mVirgin Atlantic

Deal found 12/6£458

Tue 8/713:40LHR - EYW

2 stops27h 20mBritish Airways

Mon 14/713:25EYW - LHR

2 stops13h 20mBritish Airways

Deal found 11/6£515

Tue 8/713:40LHR - EYW

2 stops27h 20mRoyal Air Maroc

Mon 14/716:48EYW - LHR

1 stop11h 17mRoyal Air Maroc

Deal found 12/6£517

Tue 8/713:40LHR - EYW

2 stops27h 20mAlaska Airlines

Mon 14/716:48EYW - LHR

1 stop11h 17mAlaska Airlines

Deal found 11/6£519

Tue 8/713:40LHR - EYW

1 stop28h 15mIberia

Mon 14/716:48EYW - LHR

1 stop11h 17mIberia

Deal found 11/6£523

Tue 8/718:50LHR - EYW

2 stops21h 01mDelta

Mon 14/711:48EYW - LHR

1 stop14h 27mDelta

Deal found 10/6£538

Wed 16/708:55LHR - EYW

2 stops15h 26mFinnair

Wed 30/716:58EYW - LHR

1 stop12h 32mFinnair

Deal found 10/6£542

Wed 9/716:40LHR - EYW

2 stops25h 32mUnited Airlines

Wed 16/714:12EYW - LHR

2 stops15h 28mUnited Airlines

Deal found 12/6£603

Sun 27/708:55LHR - EYW

2 stops15h 26mMultiple Airlines

Sun 3/819:51EYW - LHR

1 stop30h 04mMultiple Airlines

Deal found 12/6£689

Sun 27/715:00LHR - EYW

1 stop28h 09mAmerican Airlines

Sun 3/812:47EYW - LHR

1 stop15h 18mAmerican Airlines

Deal found 12/6£735

Sat 26/706:15LHR - EYW

2 stops18h 34mAir France

Sat 2/811:48EYW - LHR

2 stops16h 37mAir France

Deal found 11/6£907

Fri 25/709:30LHR - EYW

2 stops32h 42mLufthansa

Fri 1/814:45EYW - LHR

3 stops34h 35mLufthansa

Deal found 10/6£5,163

Last-minute flights from Heathrow to Key West
Discover last-minute flight deals from Heathrow to Key West. Data last updated 13 June 2025 and is based on user searches.

Tue 8/713:40LHR - EYW

2 stops27h 20mBritish Airways

Mon 14/713:25EYW - LHR

2 stops13h 20mBritish Airways

Deal found 11/6£515

Tue 8/713:40LHR - EYW

2 stops27h 20mRoyal Air Maroc

Mon 14/716:48EYW - LHR

1 stop11h 17mRoyal Air Maroc

Deal found 12/6£517

Tue 8/713:40LHR - EYW

2 stops27h 20mAlaska Airlines

Mon 14/716:48EYW - LHR

1 stop11h 17mAlaska Airlines

Deal found 11/6£519

Tue 8/713:40LHR - EYW

1 stop28h 15mIberia

Mon 14/716:48EYW - LHR

1 stop11h 17mIberia

Deal found 11/6£523

Tue 8/719:05LHR - EYW

2 stops21h 55mAmerican Airlines

Mon 14/712:47EYW - LHR

2 stops14h 03mAmerican Airlines

Deal found 12/6£538

Wed 9/716:40LHR - EYW

2 stops25h 32mUnited Airlines

Wed 16/714:12EYW - LHR

2 stops15h 28mUnited Airlines

Deal found 12/6£603

Thu 10/709:20LHR - EYW

1 stop13h 12mVirgin Atlantic

Sat 19/718:27EYW - LHR

2 stops44h 33mVirgin Atlantic

Deal found 11/6£552

Sat 26/706:15LHR - EYW

2 stops18h 34mAir France

Sat 2/811:48EYW - LHR

2 stops16h 37mAir France

Deal found 11/6£907

Sun 27/708:55LHR - EYW

2 stops15h 26mMultiple Airlines

Sun 3/819:51EYW - LHR

1 stop30h 04mMultiple Airlines

Deal found 12/6£689

Sun 27/720:10LHR - EYW

2 stops19h 41mDelta

Thu 7/814:03EYW - LHR

1 stop18h 27mDelta

Deal found 12/6£699

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 10/9

20:55-19:44

2 stops27h 49m

Key West

Wed 17/9

11:45-06:45

1 stop14h 00m

£458

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 8/7

13:40-12:00

2 stops27h 20m

Key West

Mon 14/7

13:25-07:45

2 stops13h 20m

£515

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 8/7

13:40-12:00

2 stops27h 20m

Key West

Mon 14/7

16:48-09:05

1 stop11h 17m

£517

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 8/7

13:40-12:00

2 stops27h 20m

Key West

Mon 14/7

16:48-09:05

1 stop11h 17m

£519

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 8/7

13:40-12:55

1 stop28h 15m

Key West

Mon 14/7

16:48-09:05

1 stop11h 17m

£523

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 8/7

19:05-12:00

2 stops21h 55m

Key West

Mon 14/7

12:47-07:50

2 stops14h 03m

£538

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 9/7

16:40-13:12

2 stops25h 32m

Key West

Wed 16/7

14:12-10:40

2 stops15h 28m

£603

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 27/7

08:55-19:21

2 stops15h 26m

Key West

Sun 3/8

19:51-06:55

1 stop30h 04m

£689

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 27/7

20:10-10:51

2 stops19h 41m

Key West

Thu 7/8

14:03-13:30

1 stop18h 27m

£699

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 26/7

06:15-19:49

2 stops18h 34m

Key West

Sat 2/8

11:48-09:25

2 stops16h 37m

£907

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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

Rainfall in Key West 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

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

Alaska Airlines

8.0

Very Good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very Good

10,000 reviews

Alaska Airlines

8.0

Very Good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very Good

7,946 reviews

Alaska Airlines

8.0

Very Good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Finnair

7.6

Good

1,290 reviews

Alaska Airlines

8.0

Very Good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Air France

7.5

Good

1,463 reviews

Alaska Airlines

8.0

Very Good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,790 reviews

Alaska Airlines

8.0

Very Good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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 2 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 £458. Other airlines that can offer you cheap pricing are British Airways, from £515, and Royal Air Maroc, from £517. Virgin Atlantic is priced at 29% 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Heathrow to Key West

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£424	Average£621	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£444	Average£549	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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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Our users can plan ahead with confidence and find flights with no change fees

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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 London Heathrow Airport to Key West from £458

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Key West

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Key West

Cheapest flights from Heathrow to Key WestExplore 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 13 June 2025.

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 13 June 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

Rainfall in Key West by month

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

Temperature in Key West by month

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

Reviews of airlines servicing Key West

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?

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

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

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

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

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

Top 2 airlines flying from Heathrow 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 Heathrow to Key West?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 13 June 2025.