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£331+ 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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Flights to Key Largo in 2026

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 13 May 2026.

Tue 9/609:15
LHR
-
MIA
1 stop17h 41m
British Airways
Mon 22/613:49
MIA
-
LHR
1 stop15h 26m
British Airways
Deal found 10/5£517
Sun 18/1010:00
LGW
-
MIA
1 stop13h 45m
Air Europa
Thu 5/1121:45
MIA
-
LGW
1 stop13h 40m
Air Europa
Deal found 10/5£517
Tue 23/609:15
LHR
-
MIA
1 stop13h 10m
British Airways
Tue 30/615:00
MIA
-
LHR
1 stop10h 50m
British Airways
Deal found 9/5£518
Tue 2/606:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Tue 9/622:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 12/5£519
Mon 16/1117:25
LGW
-
MIA
1 stop31h 05m
Air Europa
Sat 28/1121:45
MIA
-
LGW
1 stop13h 40m
Air Europa
Deal found 12/5£519
Thu 17/919:50
LHR
-
MIA
1 stop23h 45m
TAP AIR PORTUGAL
Sun 4/1000:30
MIA
-
LHR
1 stop16h 30m
TAP AIR PORTUGAL
Deal found 8/5£520
Wed 9/910:00
LGW
-
MIA
1 stop13h 45m
Air Europa
Fri 18/921:30
MIA
-
LGW
1 stop13h 55m
Air Europa
Deal found 11/5£520
Thu 14/510:00
LGW
-
MIA
1 stop13h 45m
Air Europa
Wed 27/521:30
MIA
-
LGW
1 stop13h 55m
Air Europa
Deal found 11/5£520
Wed 27/521:20
STN
-
MIA
3 stops24h 47m
Multiple Airlines
Wed 3/613:10
MIA
-
STN
3 stops30h 00m
Multiple Airlines
Deal found 8/5£521
Sun 12/712:55
LHR
-
MIA
1 stop15h 04m
American Airlines
Thu 23/713:48
MIA
-
LHR
1 stop15h 27m
American Airlines
Deal found 12/5£521
Fri 2/1010:00
LGW
-
MIA
1 stop13h 45m
Air Europa
Sat 17/1021:30
MIA
-
LGW
1 stop13h 55m
Air Europa
Deal found 13/5£521
Mon 21/909:55
LHR
-
MIA
1 stop15h 05m
LEVEL
Mon 28/922:00
MIA
-
LHR
1 stop17h 05m
LEVEL
Deal found 12/5£522

Find flight deals to Key Largo

Find the latest flights to Key Largo in 2026, 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 13 May 2026.

Return from

£517

One-way from

£331

Popular in

December

Cheapest in

September

Average price

£523
British Airways
  • British Airways
  • 9/6-22/6
  • 2 total stops
  • 33h 07m total
  • London to Miami
Search Deals
29/9
  • 29/9
  • 3 total stops
  • 25h 55m total
  • London to Key Largo
Search Deals
Highest demand for flights based on searches. 0% potential increase in price.
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for return flights in May 2026
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 13 May 2026.
Use the filters below to find and compare flights to Key Largo that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Wed 16/9

10:55-20:00

1 stop14h 05m

Miami

Wed 30/9

22:00-10:50

1 stop31h 50m

£520

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Thu 1/10

10:00-18:45

1 stop13h 45m

Miami

Sat 3/10

21:30-09:00

1 stop30h 30m

£523

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 26/5

12:20-20:45

1 stop13h 25m

Miami

Tue 2/6

22:10-20:00

1 stop16h 50m

£554

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Wed 24/6

12:20-20:45

1 stop13h 25m

Miami

Mon 13/7

16:30-10:10

1 stop12h 40m

£554

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 9/7

06:15-17:50

1 stop16h 35m

Miami

Sun 19/7

11:24-06:20

1 stop13h 56m

£562

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 25/5

10:55-15:50

Nonstop9h 55m

Miami

Tue 9/6

22:35-12:35

Nonstop9h 00m

£565

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 25/5

15:50-20:45

Nonstop9h 55m

Miami

Thu 4/6

18:05-08:05

Nonstop9h 00m

£565
Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 17/8

09:55-14:30

Nonstop9h 35m

Miami

Mon 24/8

19:35-09:25

Nonstop8h 50m

£570

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 21/7

17:00-10:24

2 stops22h 24m

Miami

Tue 4/8

11:50-09:25

2 stops16h 35m

£571

LondonMiami

LCY - MIA

LCYMIA

London City

Tue 29/9

10:00-23:13

2 stops18h 13m

Miami

Tue 6/10

11:15-07:55

2 stops15h 40m

£572

Flights are sorted by cheapest return flights first.

Deals found on 8/5

Showing 1-10 of 60 resultsSorted by cheapest first
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

How long is the flight to Key Largo?

On average, a flight from London to Key Largo takes 13 hours 14 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 Monday (28 on average). You will have fewer flight options on Friday, 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 American Airlines.

Virgin Atlantic
Virgin Atlantic
From £370
British Airways
British Airways
From £300
American Airlines
American Airlines
From £369
Finnair
Finnair
From £356

What are the cheapest airlines that fly to Key Largo?

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

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 13 May 2026.
Get a feel of what it's like to fly with Finnair,Virgin Atlantic, andNorse Atlantic UK 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.
Finnair
7.6
Good
1,393 reviews
Check prices

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,393 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Virgin Atlantic
7.4
Good
688 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Norse Atlantic UK
7.2
Good
Finnair
7.6
Good
1,393 reviews
Check prices

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
American Airlines
7.1
Good
11,662 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
7,975 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

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, Norse Atlantic UK 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 £67, however they can be found for as little as £66.

  • 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

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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!

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