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£424+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
9 Jul — 16 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 9 June 2026.

Thu 27/807:45
LCY
-
MIA
1 stop12h 00m
Delta
Tue 8/916:55
MIA
-
LCY
1 stop10h 55m
Delta
Deal found 8/6£526
Sat 11/719:30
LHR
-
MIA
2 stops28h 57m
British Airways
Sun 26/714:00
MIA
-
LHR
1 stop11h 25m
British Airways
Deal found 8/6£526
Tue 7/717:00
LGW
-
MIA
2 stops30h 53m
Multiple Airlines
Tue 28/715:17
MIA
-
LGW
2 stops19h 43m
Multiple Airlines
Deal found 9/6£526
Sat 27/618:35
LHR
-
MIA
1 stop25h 10m
Virgin Atlantic
Sat 8/807:03
MIA
-
LHR
1 stop18h 42m
Virgin Atlantic
Deal found 8/6£527
Tue 7/710:35
LGW
-
MIA
1 stop15h 10m
Air France
Tue 28/723:00
MIA
-
LGW
1 stop12h 00m
Air France
Deal found 9/6£527
Sat 20/620:05
LHR
-
MIA
1 stop19h 16m
Delta
Mon 13/715:29
MIA
-
LHR
2 stops14h 11m
Delta
Deal found 8/6£528
Wed 8/709:15
LCY
-
MIA
1 stop13h 10m
SWISS
Wed 15/719:40
MIA
-
LCY
1 stop11h 55m
SWISS
Deal found 8/6£528
Tue 11/809:55
LHR
-
MIA
2 stops18h 42m
Delta
Tue 25/811:24
MIA
-
LHR
1 stop14h 21m
Delta
Deal found 8/6£528
Wed 26/810:25
LGW
-
MIA
1 stop12h 25m
Delta
Tue 8/915:45
MIA
-
LGW
2 stops19h 15m
Delta
Deal found 8/6£528
Fri 27/1109:00
LHR
-
MIA
1 stop13h 30m
SWISS
Sun 6/1216:40
MIA
-
LHR
2 stops19h 00m
SWISS
Deal found 8/6£529
Mon 31/805:40
LGW
-
MIA
2 stops18h 05m
Multiple Airlines
Mon 7/921:30
MIA
-
LGW
2 stops23h 05m
Multiple Airlines
Deal found 8/6£529
Thu 9/707:45
LCY
-
MIA
1 stop12h 00m
Virgin Atlantic
Thu 16/716:55
MIA
-
LCY
1 stop21h 50m
Virgin Atlantic
Deal found 8/6£530

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 9 June 2026.

Return from

£526

One-way from

£424

Popular in

December

Cheapest in

September

Average price

£524
Delta
  • Delta
  • 27/8-8/9
  • 2 total stops
  • 22h 55m total
  • London to Miami
Search Deals
9/7
  • 9/7
  • 2 total stops
  • 19h 43m 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 (£10 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 9 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

LCY - MIA

LCYMIA

London City

Sun 18/10

13:45-14:55

2 stops54h 10m

Miami

Mon 2/11

06:00-08:50

2 stops21h 50m

£532

LondonMiami

LCY - MIA

LCYMIA

London City

Tue 7/7

07:45-14:45

1 stop12h 00m

Miami

Tue 28/7

16:55-08:50

1 stop10h 55m

£532

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

£533

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Wed 21/10

10:25-00:52

2 stops19h 27m

Miami

Wed 4/11

11:15-09:00

2 stops16h 45m

£534

LondonMiami

LCY - MIA

LCYMIA

London City

Wed 21/10

08:25-23:09

2 stops19h 44m

Miami

Mon 2/11

06:00-08:50

2 stops21h 50m

£537

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

£537

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sat 5/9

10:25-00:47

2 stops19h 22m

Miami

Sun 13/9

20:10-16:00

1 stop14h 50m

£539

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Fri 11/9

17:00-10:45

2 stops22h 45m

Miami

Sat 26/9

11:49-09:20

2 stops16h 31m

£539
Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 29/6

12:15-16:55

Nonstop9h 40m

Miami

Mon 20/7

15:00-07:50

1 stop11h 50m

£550

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 11/8

10:55-15:50

Nonstop9h 55m

Miami

Tue 18/8

11:24-06:45

1 stop14h 21m

£553

Flights are sorted by cheapest return flights first.

Deals found on 8/6

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 15 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 £387
British Airways
British Airways
From £132
American Airlines
American Airlines
From £375
Finnair
Finnair
From £378

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 9 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
1,405 reviews
Check prices

Boarding

7.7

Crew

8.2

Overall

7.7

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.7
Good
1,405 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Boarding

7.7

Crew

8.2

Overall

7.7

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Virgin Atlantic
7.5
Good
689 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Boarding

7.7

Crew

8.2

Overall

7.7

Entertainment

6.9

Food

6.7

Comfort

7.4

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
7.7
Good
1,405 reviews
Check prices

Boarding

7.7

Crew

8.2

Overall

7.7

Entertainment

6.9

Food

6.7

Comfort

7.4

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
11,642 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Boarding

7.7

Crew

8.2

Overall

7.7

Entertainment

6.9

Food

6.7

Comfort

7.4

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
8,034 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Boarding

7.7

Crew

8.2

Overall

7.7

Entertainment

6.9

Food

6.7

Comfort

7.4

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 £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?

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.

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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.

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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