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Cheap flights from the United Kingdom to Key Largo from £240

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MIA
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Key Largo

Keep the following information in mind while searching for United Kingdom to Key Largo flight deals. Data was last updated 28 October 2025.

Round-trip from

£387

One-way from

£240

Popular in

December

Cheapest in

September

Average price

£536
Scandinavian Airlines
  • Scandinavian Airlines
  • 2/2-9/2
  • 2 total stops
  • 33h 15m total
  • United Kingdom to Key Largo
Search Deals
9/2
  • 9/2
  • 2 total stops
  • 40h 50m total
  • United Kingdom to Key Largo
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from United Kingdom to Key Largo

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Key Largo
Explore the most affordable flight options available from United Kingdom to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.

Mon 17/1120:35LHR - MIA
1 stop29h 20mIcelandair
Wed 26/1117:15MIA - LHR
1 stop12h 35mIcelandair
Deal found 25/10£389
Sat 22/1117:00LHR - MIA
1 stop30h 05mScandinavian Airlines
Wed 3/1219:55MIA - LHR
1 stop16h 05mScandinavian Airlines
Deal found 25/10£390
Mon 3/1120:35LHR - MIA
1 stop29h 20mIcelandair
Wed 26/1117:15MIA - LHR
1 stop21h 15mIcelandair
Deal found 27/10£391
Mon 8/1206:40LHR - MIA
1 stop16h 25mScandinavian Airlines
Tue 23/1219:55MIA - LHR
1 stop15h 05mScandinavian Airlines
Deal found 26/10£392
Mon 17/1120:35LHR - MIA
1 stop29h 20mIcelandair
Wed 3/1217:15MIA - LHR
1 stop21h 15mIcelandair
Deal found 25/10£392
Tue 9/1208:30LGW - MIA
1 stop15h 25mMultiple Airlines
Wed 18/223:35MIA - LGW
2 stops29h 25mMultiple Airlines
Deal found 26/10£393
Mon 3/1120:35LHR - MIA
1 stop29h 20mIcelandair
Wed 12/1117:15MIA - LHR
1 stop21h 15mIcelandair
Deal found 25/10£394
Wed 19/1110:40LGW - MIA
1 stop16h 10mTAP AIR PORTUGAL
Tue 2/1216:35MIA - LGW
1 stop12h 15mTAP AIR PORTUGAL
Deal found 25/10£394
Wed 12/1106:00LHR - MIA
1 stop13h 50mTAP AIR PORTUGAL
Mon 17/1116:35MIA - LHR
1 stop24h 00mTAP AIR PORTUGAL
Deal found 27/10£395
Thu 4/1208:30LGW - MIA
1 stop15h 25mMultiple Airlines
Tue 9/1221:10MIA - LGW
1 stop16h 25mMultiple Airlines
Deal found 26/10£395
Tue 18/1108:10STN - MIA
2 stops35h 40mMultiple Airlines
Fri 28/1123:35MIA - STN
2 stops19h 35mMultiple Airlines
Deal found 25/10£395
Wed 19/1105:55STN - MIA
2 stops20h 55mMultiple Airlines
Fri 28/1123:35MIA - STN
2 stops19h 35mMultiple Airlines
Deal found 25/10£396

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Key Largo 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 28 October 2025.
Use the filters below to find and compare flights from the United Kingdom to Key Largo that are best for you.

Fly from

United Kingdom

Fly to

Key Largo

Route

Depart

Return

Price

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 3/2

08:30-18:55

1 stop15h 25m

Miami

Tue 10/2

21:10-18:35

1 stop16h 25m

£396

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 27/1

08:30-18:55

1 stop15h 25m

Miami

Sat 7/2

21:10-19:10

1 stop17h 00m

£399

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 9/12

11:55-20:55

1 stop14h 00m

Miami

Wed 17/12

17:15-10:55

1 stop12h 40m

£414

LondonMiami

STN - MIA

STNMIA

London Stansted

Mon 2/2

11:55-18:35

2 stops35h 40m

Miami

Mon 9/2

20:40-20:00

2 stops18h 20m

£419

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Thu 5/3

08:30-18:55

1 stop15h 25m

Miami

Thu 19/3

21:10-19:25

1 stop18h 15m

£422

LondonMiami

LTN - MIA

LTNMIA

London Luton

Tue 18/11

20:50-21:50

2 stops30h 00m

Miami

Fri 28/11

16:35-20:10

2 stops22h 35m

£433

BirminghamMiami

BHX - MIA

BHXMIA

Birmingham

Sun 8/3

19:10-19:35

1 stop28h 25m

Miami

Wed 11/3

21:40-18:30

1 stop16h 50m

£442

BirminghamMiami

BHX - MIA

BHXMIA

Birmingham

Tue 2/12

19:10-18:05

2 stops51h 55m

Miami

Tue 9/12

19:55-18:30

1 stop17h 35m

£446

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Thu 26/2

10:00-19:30

1 stop14h 30m

Miami

Fri 6/3

21:45-16:25

1 stop13h 40m

£459

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Wed 11/2

10:00-19:30

1 stop14h 30m

Miami

Tue 17/2

21:45-16:25

1 stop13h 40m

£459

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 60 results
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6

Best time to book a flight from United Kingdom to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from United Kingdom 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 the United Kingdom to Key Largo

What is the cheapest month to book a flight from United Kingdom to Key Largo?

Currently, May is the cheapest month in which you can book a flight from United Kingdom to Key Largo (average of £231). Flying from United Kingdom to Key Largo in October is currently the most expensive (average of £375). 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.

What is the cheapest time of day to fly from GB to KE9?

Find hourly flight availability from United Kingdom to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 October 2025.

It’s typically best to fly out from United Kingdom to Key Largo in the afternoon. Doing so could potentially save you 12% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from United Kingdom to Key Largo?

Use this chart to determine the cheapest time to fly return from United Kingdom to Key Largo. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their United Kingdom to Key Largo flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from United Kingdom to Key Largo

Explore weekly flight availability from United Kingdom to Key Largo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 28 October 2025.

The most flights from GB0 to KE9 are scheduled on a Sunday (25 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (20 on average).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Largo. Reviews last updated 28 October 2025.
Read through reviews of airlines operating flights from the United Kingdom to Key Largo, such as Finnair, Virgin Atlantic, andNorse Atlantic UK. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,333 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Virgin Atlantic
7.5
Good
670 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Norse Atlantic UK
7.2
Good
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
TAP AIR PORTUGAL
7.1
Good
2,033 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,481 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Related info for your journey

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

  • How long is the flight from United Kingdom to Key Largo?

    Airlines like Icelandair, Scandinavian Airlines, and Air Europa fly from United Kingdom to Key Largo in about 14h. The time it takes to get you to your destination can typically vary by up to 14h 25m. United Kingdom and Key Largo are separated by a distance of 4430 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from United Kingdom to Key Largo one-way?

    The cheapest airline one-way is LEVEL, with whom users have recently found tickets for as low as £253. However, be on the lookout for offers from British Airways and SWISS, as they are both options that can get you from United Kingdom to Key Largo for a low price.

  • What are the most popular routes from United Kingdom to Key Largo?

    The most popular route from United Kingdom to Key Largo is London Heathrow - Miami. You may also consider London Gatwick - Miami or London City - Miami.

  • What are the most reliable airlines from United Kingdom to Key Largo?

    Consider Gulf Air (80%), Malaysia Airlines (77%) or KLM (73%) when booking your flight. These represent the most reliable airlines when flying from United Kingdom to Key Largo.

  • What are the cheapest flights from United Kingdom to Key Largo?

    On average you can expect to pay £1,489 for a flight from United Kingdom to Key Largo. The cheapest flight overall is £335 while the most popular route, (London Heathrow - Miami) is currently priced at £344.

  • Can I find deals for flights from United Kingdom to Key Largo that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Key Largo flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Key Largo?

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

  • Can I find deals for business class flights from United Kingdom to Key Largo?

    Yes. Cheapflights offers flight deals from United Kingdom to Key Largo 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 United Kingdom to Key Largo?

    Currently, May is the cheapest month in which you can book a flight from United Kingdom to Key Largo (average of £231). Flying from United Kingdom to Key Largo in October is currently the most expensive (average of £375). 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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Alternative routes for United Kingdom to Key Largo

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Top 10 airlines flying from United Kingdom to Key Largo

Discover the top 10 airlines that operate flights from United Kingdom to Key Largo. 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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£218Average£659FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Norse Atlantic UKCheapest£277Average£415FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
SWISSCheapest£301Average£508FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Scandinavian AirlinesCheapest£315Average£397FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£316Average£521FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£329Average£501FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
A.P.G.Cheapest£345Average£550FlexibilityNo cancel feeOn-timeN/A
Search A.P.G. flights
United AirlinesCheapest£347Average£602FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£347Average£599FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air EuropaCheapest£356Average£458FlexibilityNo cancel feeOn-time83%
Search Air Europa 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 United Kingdom to Key Largo?

When you search for this flight from United Kingdom to Key Largo, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Key Largo?

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Key Largo 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 United Kingdom to Key Largo with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from United Kingdom to Key Largo, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from United Kingdom to Key Largo become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Key Largo from United Kingdom today and book when prices fit your budget.

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