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£437+ 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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
7 Aug — 14 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 8 July 2026.

Thu 1/1006:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Sun 11/1016:20
MIA
-
LHR
1 stop25h 35m
TAP AIR PORTUGAL
Deal found 7/7£466
Sun 6/913:45
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Mon 7/916:20
MIA
-
LHR
1 stop15h 25m
TAP AIR PORTUGAL
Deal found 4/7£467
Sun 4/1020:35
LTN
-
MIA
2 stops27h 10m
Multiple Airlines
Sun 11/1021:30
MIA
-
LTN
2 stops17h 25m
Multiple Airlines
Deal found 6/7£467
Thu 1/1020:35
LGW
-
MIA
2 stops30h 20m
Multiple Airlines
Sun 11/1016:20
MIA
-
LGW
2 stops26h 05m
Multiple Airlines
Deal found 7/7£467
Fri 18/906:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Thu 24/916:20
MIA
-
LHR
1 stop13h 40m
TAP AIR PORTUGAL
Deal found 7/7£468
Tue 6/1012:45
LTN
-
MIA
2 stops30h 50m
Multiple Airlines
Mon 12/1016:20
MIA
-
LTN
2 stops17h 00m
Multiple Airlines
Deal found 6/7£468
Sat 28/1110:00
LGW
-
MIA
1 stop14h 55m
LEVEL
Thu 10/1221:40
MIA
-
LGW
1 stop33h 40m
LEVEL
Deal found 4/7£468
Thu 5/1106:00
LHR
-
MIA
1 stop13h 50m
TAP AIR PORTUGAL
Mon 30/1116:50
MIA
-
LHR
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 8/7£469
Thu 15/1012:45
LTN
-
MIA
2 stops30h 50m
Multiple Airlines
Wed 21/1003:50
MIA
-
LTN
2 stops26h 05m
Multiple Airlines
Deal found 7/7£469
Mon 12/1016:25
LGW
-
MIA
1 stop27h 10m
TAP AIR PORTUGAL
Sun 18/1016:20
MIA
-
LGW
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 6/7£469
Tue 6/1009:10
STN
-
MIA
2 stops34h 25m
Multiple Airlines
Tue 13/1016:20
MIA
-
STN
2 stops23h 40m
Multiple Airlines
Deal found 8/7£470
Tue 1/906:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Wed 30/916:20
MIA
-
LHR
1 stop15h 25m
TAP AIR PORTUGAL
Deal found 7/7£470

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 8 July 2026.

Return from

£466

One-way from

£437

Popular in

December

Cheapest in

September

Average price

£596
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 1/10-11/10
  • 2 total stops
  • 39h 10m total
  • London to Miami
Search Deals
28/9
  • 28/9
  • 3 total stops
  • 27h 35m 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 July 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 8 July 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

Fri 2/10

10:35-21:55

1 stop16h 20m

Miami

Sun 11/10

00:30-09:45

1 stop28h 15m

£488

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sun 4/10

10:35-22:20

1 stop16h 45m

Miami

Sun 18/10

16:20-20:25

2 stops47h 05m

£502

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 7/10

08:40-17:25

1 stop13h 45m

Miami

Wed 14/10

13:25-05:55

1 stop11h 30m

£506

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 25/9

11:30-20:05

1 stop13h 35m

Miami

Fri 2/10

17:05-06:55

Nonstop8h 50m

£520

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 12/9

13:50-17:25

1 stop32h 35m

Miami

Tue 22/9

19:40-07:55

1 stop31h 15m

£520

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 8/12

13:45-14:45

1 stop30h 00m

Miami

Tue 5/1

17:20-20:35

1 stop22h 15m

£520

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 14/12

06:05-15:20

1 stop14h 15m

Miami

Wed 23/12

22:00-11:30

Nonstop8h 30m

£523

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 21/8

11:30-20:05

1 stop13h 35m

Miami

Fri 4/9

13:45-06:50

1 stop12h 05m

£525

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 6/11

09:00-17:30

1 stop13h 30m

Miami

Fri 13/11

13:44-11:05

2 stops16h 21m

£532

LondonMiami

LTN - MIA

LTNMIA

London Luton

Tue 6/10

12:45-19:45

2 stops36h 00m

Miami

Wed 11/11

17:15-21:05

2 stops22h 50m

£536

Flights are sorted by cheapest return flights first.

Deals found on 7/7

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 42 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 (16 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 £250
British Airways
British Airways
From £131
American Airlines
American Airlines
From £416
Finnair
Finnair
From £360

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 8 July 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
1,419 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

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
1,419 reviews
Finnair
7.6
Good
1,419 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

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
692 reviews
Finnair
7.6
Good
1,419 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

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
1,419 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

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
11,783 reviews
Finnair
7.6
Good
1,419 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

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
8,103 reviews
Finnair
7.6
Good
1,419 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

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 £274, however they can be found for as little as £60.

  • 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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