Find flights
Deals
Airlines

£360+ Cheap flights to Key Largo

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
27 Jan — 3 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Key Largo in 2025

Enter your travel dates to find the best prices.

Cheapest flights to Key Largo
Explore the most affordable flight options available to Key Largo. Find the lowest fares based on data from user searches, with prices last updated on 28 December 2025.

Wed 31/1211:15LHR - MIA
Nonstop10h 00mBritish Airways
Thu 8/116:44MIA - LHR
1 stop11h 36mBritish Airways
Deal found 27/12£578
Tue 30/1213:50LHR - MIA
1 stop13h 25mBritish Airways
Tue 3/314:07MIA - LHR
1 stop11h 13mBritish Airways
Deal found 27/12£579
Tue 30/1213:50LHR - MIA
1 stop13h 25mBritish Airways
Fri 27/216:23MIA - LHR
1 stop11h 17mBritish Airways
Deal found 27/12£580
Wed 31/1213:50LHR - MIA
1 stop13h 29mBritish Airways
Wed 14/122:50MIA - LHR
Nonstop8h 30mBritish Airways
Deal found 26/12£580
Tue 30/1206:00LHR - MIA
1 stop14h 35mBritish Airways
Sat 17/118:00MIA - LHR
1 stop10h 40mBritish Airways
Deal found 26/12£583
Tue 30/1206:00LHR - MIA
1 stop14h 35mBritish Airways
Fri 9/118:00MIA - LHR
1 stop10h 40mBritish Airways
Deal found 27/12£583
Mon 29/1212:30LHR - MIA
1 stop13h 27mVirgin Atlantic
Thu 8/116:32MIA - LHR
1 stop11h 28mVirgin Atlantic
Deal found 26/12£586
Wed 31/1214:30LHR - MIA
Nonstop10h 00mAmerican Airlines
Sat 17/122:50MIA - LHR
Nonstop8h 30mAmerican Airlines
Deal found 26/12£598
Tue 30/1211:15LHR - MIA
Nonstop10h 00mBritish Airways
Thu 8/116:44MIA - LHR
1 stop11h 36mBritish Airways
Deal found 26/12£599
Wed 31/1213:50LHR - MIA
1 stop13h 29mBritish Airways
Sat 17/116:03MIA - LHR
1 stop12h 12mBritish Airways
Deal found 26/12£603
Wed 31/1212:30LGW - MIA
1 stop32h 05mBritish Airways
Sat 10/121:44MIA - LGW
1 stop28h 46mBritish Airways
Deal found 27/12£608
Wed 31/1212:30LGW - MIA
1 stop32h 05mBritish Airways
Sun 11/114:39MIA - LGW
2 stops23h 21mBritish Airways
Deal found 27/12£618

Find flight deals to Key Largo

Find the latest flights to Key Largo in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 28 December 2025.

Return from

£429

One-way from

£360

Popular in

December

Cheapest in

September

Average price

£635
Lufthansa
  • Lufthansa
  • 8/1-17/1
  • 4 total stops
  • 43h 26m total
  • London to Miami
Search Deals
SWISS
  • SWISS
  • 15/2
  • 1 total stop
  • 24h 20m total
  • London to Key Largo
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Locate flights to Key Largo that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 28 December 2025.
Use the filters below to find and compare flights to Key Largo that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sat 14/3

11:55-21:55

1 stop14h 00m

Miami

Fri 17/4

18:15-14:40

1 stop15h 25m

£430

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 7/1

15:50-09:25

1 stop22h 35m

Miami

Fri 16/1

21:25-11:10

Nonstop8h 45m

£431

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 7/1

15:50-09:25

1 stop22h 35m

Miami

Sun 18/1

17:10-07:00

Nonstop8h 50m

£431

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 16/1

10:10-18:54

1 stop13h 44m

Miami

Tue 27/1

17:10-07:00

Nonstop8h 50m

£432

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Fri 16/1

11:45-20:45

1 stop14h 00m

Miami

Thu 29/1

17:20-10:50

1 stop12h 30m

£435

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 6/3

06:30-14:50

1 stop13h 20m

Miami

Tue 17/3

18:10-07:00

Nonstop8h 50m

£435

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 7/3

12:10-17:10

Nonstop10h 00m

Miami

Tue 17/3

16:22-08:10

1 stop11h 48m

£437

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 14/3

11:30-21:30

1 stop14h 00m

Miami

Thu 16/4

18:05-08:05

Nonstop9h 00m

£437

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sat 18/4

10:00-18:45

1 stop13h 45m

Miami

Mon 4/5

21:30-16:25

1 stop13h 55m

£438

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sun 19/4

10:00-18:45

1 stop13h 45m

Miami

Tue 5/5

21:30-16:25

1 stop13h 55m

£438

Flights are sorted by cheapest return flights first.

Deals found on 27/12

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight to Key Largo

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

When is the best time to book a flight to Key Largo?

Use this chart to determine the optimal time to book a return flight from London to Key Largo. Price data was last updated on 26 December 2025.

The price you pay for your flight to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Key Largo?

On average, a flight from London to Key Largo takes 13 hours 39 minutes. Flights to Key Largo from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Key Largo

The most flights from London to Key Largo are scheduled on a Friday (30 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (20 on average).

What are the most popular airlines that fly to Key Largo?

The most popular airlines flying from London to Key Largo are Virgin Atlantic, British Airways and Finnair.

British Airways
British Airways
From £339
Virgin Atlantic
Virgin Atlantic
From £370
Finnair
Finnair
From £356
TAP AIR PORTUGAL
TAP AIR PORTUGAL
From £327

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from London to Key Largo are Norse Atlantic UK, Delta and Icelandair.

Rainfall in Key Largo by month

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

In terms of precipitation, rainfall in Key Largo ranges from 41.0 - 252.0 inches per month. September is typically the wettest month, when rainfall can reach 252.0 mm. January is typically the driest time to visit Key Largo when rainfall is around 41.0 mm.

Temperature in Key Largo by month

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

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July 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 20.0 C).

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 December 2025.
Get a feel of what it's like to fly with KLM, Finnair, andVirgin Atlantic to the United States by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,435 reviews
Check prices

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.6

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,435 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.6

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Finnair
7.6
Good
1,339 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.6

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
677 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.6

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,435 reviews
Check prices

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.6

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,616 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.6

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

FAQs about flying to Key Largo

  • Can I find cheaper flights to Key Largo if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Key Largo on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Key Largo?

    Based on reviews from Cheapflights users, Delta is rated the highest out of the airlines that fly to Key Largo.

  • How much is a return flight to Key Largo?

    A return flight to Key Largo will typically cost around £53, however they can be found for as little as £37.

  • Where does the fastest flight to Key Largo depart from?

    For those looking to save time traveling to Key Largo, London offers the quickest one-way flight (9 hours 35 minutes).

  • Does Miami have car hire?

    Yes. Those touching down at Miami can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Miami?

    Yes. Miami has hotels nearby for those requiring accommodations. Miami International Airport Hotel is the closest property to Miami (0.0 mi away from Miami).

See more FAQs

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.

Search flights to Key Largo by cabin class

Find flights to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

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 to Key Largo?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Key Largo. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights simply makes it quick and affordable to book flights to Key Largo by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights to Key Largo with no change fees?

Need flexible booking options for your flight to Key Largo ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Key Largo today and book when you’re ready!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

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

Travel Smart

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.