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£336+ 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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
18 Jun — 25 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 19 May 2026.

Sun 14/606:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Tue 30/622:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 16/5£526
Tue 26/511:30
LGW
-
MIA
1 stop13h 55m
Iberia
Mon 29/616:55
MIA
-
LGW
1 stop12h 55m
Iberia
Deal found 14/5£526
Thu 8/1021:55
STN
-
MIA
2 stops22h 10m
Multiple Airlines
Wed 21/1022:00
MIA
-
STN
1 stop16h 20m
Multiple Airlines
Deal found 16/5£527
Wed 11/1105:55
LTN
-
MIA
1 stop19h 05m
Multiple Airlines
Wed 25/1122:35
MIA
-
LTN
2 stops18h 45m
Multiple Airlines
Deal found 14/5£527
Wed 19/815:35
LHR
-
MIA
Nonstop9h 35m
British Airways
Wed 2/919:35
MIA
-
LHR
Nonstop8h 50m
British Airways
Deal found 17/5£527
Wed 11/1110:40
LGW
-
MIA
1 stop16h 05m
TAP AIR PORTUGAL
Wed 18/1123:50
MIA
-
LGW
2 stops29h 10m
TAP AIR PORTUGAL
Deal found 14/5£527
Sun 24/509:15
LHR
-
MIA
1 stop13h 10m
American Airlines
Mon 29/617:15
MIA
-
LHR
1 stop14h 00m
American Airlines
Deal found 15/5£528
Tue 17/1121:20
LGW
-
MIA
2 stops22h 30m
TAP AIR PORTUGAL
Tue 1/1216:50
MIA
-
LGW
1 stop17h 55m
TAP AIR PORTUGAL
Deal found 15/5£528
Tue 2/606:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Mon 8/611:50
MIA
-
LHR
1 stop13h 55m
Virgin Atlantic
Deal found 17/5£528
Wed 9/920:55
LHR
-
MIA
1 stop22h 50m
Virgin Atlantic
Sat 19/922:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 15/5£529
Sun 24/511:30
LGW
-
MIA
1 stop13h 55m
Iberia
Thu 2/716:55
MIA
-
LGW
1 stop12h 55m
Iberia
Deal found 13/5£529
Thu 21/509:15
LHR
-
MIA
1 stop15h 48m
American Airlines
Tue 2/614:37
MIA
-
LHR
1 stop12h 03m
American Airlines
Deal found 18/5£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 19 May 2026.

Return from

£526

One-way from

£336

Popular in

December

Cheapest in

September

Average price

£537
Virgin Atlantic
  • Virgin Atlantic
  • 14/6-30/6
  • 1 total stop
  • 22h 15m total
  • London to Miami
Search Deals
31/5
  • 31/5
  • 2 total stops
  • 54h 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 19 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

SEN - MIA

SENMIA

London Southend

Thu 4/6

16:35-20:00

1 stop32h 25m

Miami

Mon 15/6

21:55-20:35

2 stops17h 40m

£536

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 18/8

06:15-15:30

1 stop14h 15m

Miami

Thu 3/9

17:00-06:55

Nonstop8h 55m

£543

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 10/10

18:45-14:35

1 stop24h 50m

Miami

Sat 24/10

16:30-12:25

1 stop14h 55m

£560

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 23/6

06:15-15:25

1 stop14h 10m

Miami

Wed 1/7

13:50-06:25

1 stop11h 35m

£561

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sun 14/6

06:30-14:45

1 stop13h 15m

Miami

Tue 30/6

18:05-08:05

Nonstop9h 00m

£563

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 1/6

12:20-20:45

1 stop13h 25m

Miami

Mon 6/7

17:35-10:10

1 stop11h 35m

£567

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 1/6

12:20-20:45

1 stop13h 25m

Miami

Wed 8/7

17:35-10:40

1 stop12h 05m

£567

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 2/6

12:20-20:45

1 stop13h 25m

Miami

Mon 6/7

16:30-10:10

1 stop12h 40m

£567

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 20/8

06:30-14:45

1 stop13h 15m

Miami

Mon 31/8

11:15-06:45

1 stop14h 30m

£570

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 23/6

08:40-23:21

2 stops19h 41m

Miami

Fri 3/7

15:29-10:40

2 stops14h 11m

£572

Flights are sorted by cheapest return flights first.

Deals found on 16/5

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 14 hours 7 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 Saturday (32 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (14 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 £375
British Airways
British Airways
From £304
American Airlines
American Airlines
From £374
Finnair
Finnair
From £360

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 19 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
7.7
Good
1,396 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.4

Crew

8.2

Food

6.7

Overall

7.7

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
1,396 reviews
Finnair
7.7
Good
1,396 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.4

Crew

8.2

Food

6.7

Overall

7.7

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
7.7
Good
1,396 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.4

Crew

8.2

Food

6.7

Overall

7.7

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
1,396 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.4

Crew

8.2

Food

6.7

Overall

7.7

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
11,648 reviews
Finnair
7.7
Good
1,396 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.4

Crew

8.2

Food

6.7

Overall

7.7

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
7,988 reviews
Finnair
7.7
Good
1,396 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.4

Crew

8.2

Food

6.7

Overall

7.7

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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How does Cheapflights help users find flights to Key Largo?

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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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