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£434+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
25 Jul — 1 Aug1
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 25 June 2026.

Thu 24/1213:30
LHR
-
MIA
1 stop13h 35m
British Airways
Fri 15/122:00
MIA
-
LHR
Nonstop8h 30m
British Airways
Deal found 25/6£477
Thu 10/906:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Thu 24/922:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 25/6£477
Sun 18/1010:00
LGW
-
MIA
1 stop13h 45m
Air Europa
Wed 21/1021:30
MIA
-
LGW
1 stop13h 55m
Air Europa
Deal found 25/6£478
Sat 4/710:05
LHR
-
MIA
1 stop15h 56m
Finnair
Fri 17/717:00
MIA
-
LHR
1 stop12h 30m
Finnair
Deal found 25/6£480
Thu 10/909:15
LCY
-
MIA
1 stop13h 10m
SWISS
Thu 24/919:40
MIA
-
LCY
1 stop11h 55m
SWISS
Deal found 25/6£480
Mon 5/1009:55
LHR
-
MIA
Nonstop9h 40m
British Airways
Thu 15/1017:05
MIA
-
LHR
Nonstop8h 50m
British Airways
Deal found 25/6£480
Thu 24/910:45
LGW
-
MIA
1 stop16h 04m
Multiple Airlines
Thu 15/1007:00
MIA
-
LGW
1 stop18h 50m
Multiple Airlines
Deal found 25/6£482
Thu 10/908:45
LHR
-
MIA
1 stop13h 40m
Lufthansa
Thu 24/913:26
MIA
-
LHR
2 stops26h 14m
Lufthansa
Deal found 25/6£483
Sat 5/906:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Sun 6/922:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 25/6£483
Fri 16/1010:00
LGW
-
MIA
1 stop13h 45m
Air Europa
Sat 24/1022:45
MIA
-
LGW
1 stop30h 15m
Air Europa
Deal found 25/6£483
Thu 2/709:15
LHR
-
MIA
1 stop13h 12m
British Airways
Mon 6/719:30
MIA
-
LHR
Nonstop8h 55m
British Airways
Deal found 25/6£484
Thu 10/910:00
LGW
-
MIA
1 stop13h 45m
Air Europa
Thu 24/921:30
MIA
-
LGW
1 stop30h 30m
Air Europa
Deal found 25/6£484

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 25 June 2026.

Return from

£480

One-way from

£434

Popular in

December

Cheapest in

September

Average price

£594
SWISS
  • SWISS
  • 10/9-24/9
  • 2 total stops
  • 25h 05m total
  • London to Miami
Search Deals
11/8
  • 11/8
  • 3 total stops
  • 43h 19m total
  • London to Key Largo
Search Deals
Highest demand for flights based on searches. 2% potential increase in price.
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 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 25 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

LTN - MIA

LTNMIA

London Luton

Sun 20/9

20:35-18:45

2 stops27h 10m

Miami

Sun 11/10

21:30-19:55

2 stops17h 25m

£507
Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 1/12

14:30-19:30

Nonstop10h 00m

Miami

Sun 13/12

22:00-11:30

Nonstop8h 30m

£508

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sat 19/9

10:00-18:45

1 stop13h 45m

Miami

Sun 27/9

21:30-16:25

1 stop13h 55m

£512

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 31/10

07:00-18:30

2 stops15h 30m

Miami

Sat 7/11

19:50-18:40

2 stops17h 50m

£515

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sun 11/10

10:25-17:50

1 stop12h 25m

Miami

Tue 27/10

11:15-09:00

2 stops17h 45m

£520

LondonMiami

SEN - MIA

SENMIA

London Southend

Wed 9/9

08:25-19:45

2 stops16h 20m

Miami

Sat 19/9

21:35-10:30

1 stop31h 55m

£525

LondonMiami

LCY - MIA

LCYMIA

London City

Thu 27/8

07:45-14:45

1 stop12h 00m

Miami

Thu 10/9

16:55-09:30

1 stop11h 35m

£530

LondonMiami

LCY - MIA

LCYMIA

London City

Mon 16/11

07:45-18:49

2 stops16h 04m

Miami

Thu 26/11

17:15-08:50

1 stop10h 35m

£536

LondonMiami

SEN - MIA

SENMIA

London Southend

Fri 4/9

20:40-20:50

2 stops29h 10m

Miami

Tue 8/9

23:05-23:20

2 stops19h 15m

£536

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 19/8

08:55-17:50

1 stop13h 55m

Miami

Tue 25/8

18:05-08:05

Nonstop9h 00m

£537

Flights are sorted by cheapest return flights first.

Deals found on 20/6

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 36 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 Tuesday (24 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (15 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.

British Airways
British Airways
From £133
Virgin Atlantic
Virgin Atlantic
From £393
American Airlines
American Airlines
From £422
Finnair
Finnair
From £366

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from London to Key Largo are A.P.G., Norse Atlantic UK 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 25 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
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.6
Good
1,415 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Virgin Atlantic
7.5
Good
690 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Norse Atlantic UK
7.2
Good
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
American Airlines
7.1
Good
11,761 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
British Airways
6.7
Okay
8,071 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

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, A.P.G. 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 £278, however they can be found for as little as £89.

  • 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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