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£418+ 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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
5 Jul — 12 Jul1
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 5 June 2026.

Fri 3/716:00
LHR
-
MIA
Nonstop9h 55m
Virgin Atlantic
Mon 13/715:17
MIA
-
LHR
1 stop14h 03m
Virgin Atlantic
Deal found 1/6£528
Mon 14/910:25
LGW
-
MIA
2 stops15h 35m
Virgin Atlantic
Wed 23/920:10
MIA
-
LGW
1 stop14h 50m
Virgin Atlantic
Deal found 31/5£528
Wed 2/1213:10
LHR
-
MIA
1 stop13h 25m
British Airways
Wed 23/1222:20
MIA
-
LHR
Nonstop8h 45m
British Airways
Deal found 2/6£528
Sat 7/1110:00
LGW
-
MIA
1 stop14h 30m
Air Europa
Thu 31/1221:45
MIA
-
LGW
1 stop13h 40m
Air Europa
Deal found 2/6£528
Wed 8/709:20
LCY
-
MIA
2 stops19h 15m
Virgin Atlantic
Mon 13/711:30
MIA
-
LCY
2 stops16h 20m
Virgin Atlantic
Deal found 5/6£529
Wed 2/921:20
STN
-
MIA
2 stops26h 25m
Multiple Airlines
Wed 23/921:30
MIA
-
STN
2 stops21h 40m
Multiple Airlines
Deal found 3/6£529
Sat 4/712:00
LHR
-
MIA
1 stop13h 21m
British Airways
Fri 31/719:10
MIA
-
LHR
1 stop12h 00m
British Airways
Deal found 3/6£529
Tue 21/710:35
LGW
-
MIA
2 stops16h 24m
Virgin Atlantic
Tue 28/723:00
MIA
-
LGW
1 stop12h 00m
Virgin Atlantic
Deal found 3/6£529
Fri 2/1007:30
LHR
-
MIA
2 stops16h 27m
United Airlines
Mon 12/1013:21
MIA
-
LHR
2 stops16h 59m
United Airlines
Deal found 4/6£530
Fri 11/910:25
LGW
-
MIA
2 stops17h 48m
Virgin Atlantic
Fri 25/915:23
MIA
-
LGW
2 stops19h 37m
Virgin Atlantic
Deal found 4/6£530
Thu 9/710:00
LCY
-
MIA
2 stops19h 55m
Virgin Atlantic
Thu 16/716:55
MIA
-
LCY
1 stop20h 35m
Virgin Atlantic
Deal found 5/6£531
Wed 23/1212:30
LHR
-
MIA
1 stop13h 24m
KLM
Mon 11/115:35
MIA
-
LHR
1 stop11h 30m
KLM
Deal found 5/6£531

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 5 June 2026.

Return from

£528

One-way from

£418

Popular in

December

Cheapest in

September

Average price

£522
Virgin Atlantic
  • Virgin Atlantic
  • 3/7-13/7
  • 1 total stop
  • 23h 58m total
  • London to Miami
Search Deals
24/8
  • 24/8
  • 3 total stops
  • 29h 50m 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 June 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 5 June 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

LHR - MIA

LHRMIA

London Heathrow

Sat 5/9

07:30-18:52

2 stops16h 22m

Miami

Sun 13/9

17:37-21:35

1 stop22h 58m

£530

LondonMiami

LCY - MIA

LCYMIA

London City

Thu 9/7

10:00-00:55

2 stops19h 55m

Miami

Thu 16/7

16:55-18:30

1 stop20h 35m

£531

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 4/8

10:35-23:37

2 stops18h 02m

Miami

Sun 9/8

23:00-16:00

1 stop12h 00m

£533

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sat 31/10

10:00-23:09

2 stops17h 09m

Miami

Wed 11/11

15:35-15:45

2 stops19h 10m

£533

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 11/8

10:35-23:37

2 stops18h 02m

Miami

Wed 19/8

15:17-16:00

2 stops19h 43m

£535

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 26/11

09:55-18:05

2 stops37h 10m

Miami

Thu 3/12

19:55-09:20

1 stop32h 25m

£541

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 10/7

07:30-19:25

2 stops16h 55m

Miami

Mon 13/7

13:10-11:55

2 stops17h 45m

£542

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 8/9

12:15-17:00

Nonstop9h 45m

Miami

Tue 15/9

19:05-09:00

Nonstop8h 55m

£545

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sun 8/11

06:30-15:00

1 stop13h 30m

Miami

Sat 28/11

08:05-08:45

1 stop19h 40m

£547
Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 29/6

12:15-16:55

Nonstop9h 40m

Miami

Mon 20/7

22:40-12:35

Nonstop8h 55m

£548

Flights are sorted by cheapest return flights first.

Deals found on 2/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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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 38 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 (24 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (24 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 £379
British Airways
British Airways
From £131
American Airlines
American Airlines
From £373
Finnair
Finnair
From £362

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 5 June 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
7.7
Good
1,402 reviews
Check prices

Comfort

7.4

Overall

7.7

Entertainment

6.9

Food

6.7

Crew

8.2

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

HEL - KAO

It’s a small plane with minimal service and luggage space
Finnair
7.7
Good
1,402 reviews
Finnair
7.7
Good
1,402 reviews
Check prices

Comfort

7.4

Overall

7.7

Entertainment

6.9

Food

6.7

Crew

8.2

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

HEL - KAO

It’s a small plane with minimal service and luggage space
Virgin Atlantic
7.5
Good
689 reviews
Finnair
7.7
Good
1,402 reviews
Check prices

Comfort

7.4

Overall

7.7

Entertainment

6.9

Food

6.7

Crew

8.2

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

HEL - KAO

It’s a small plane with minimal service and luggage space
Norse Atlantic UK
7.2
Good
Finnair
7.7
Good
1,402 reviews
Check prices

Comfort

7.4

Overall

7.7

Entertainment

6.9

Food

6.7

Crew

8.2

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

HEL - KAO

It’s a small plane with minimal service and luggage space
American Airlines
7.1
Good
11,652 reviews
Finnair
7.7
Good
1,402 reviews
Check prices

Comfort

7.4

Overall

7.7

Entertainment

6.9

Food

6.7

Crew

8.2

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

HEL - KAO

It’s a small plane with minimal service and luggage space
British Airways
6.7
Okay
8,028 reviews
Finnair
7.7
Good
1,402 reviews
Check prices

Comfort

7.4

Overall

7.7

Entertainment

6.9

Food

6.7

Crew

8.2

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

HEL - KAO

It’s a small plane with minimal service and luggage space

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 £68, however they can be found for as little as £67.

  • 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?

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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.

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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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