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£209+ 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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
21 Jul — 28 Jul1
1 adult

Flights to Key Largo in 2025

Find the latest flights to Key Largo in 2025, 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 16 July 2025.

Return from

£352

One-way from

£209

Popular in

December

Cheapest in

September

Average price

£563
SWISS
  • SWISS
  • 6/9-22/9
  • 2 total stops
  • 33h 40m total
  • London to Miami
Norse Atlantic UK
  • Norse Atlantic UK
  • 15/9
  • Nonstop
  • 9h 20m total
  • London to Key Largo
Highest demand for flights based on searches. 1% potential increase in price (£6 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for return flights in July 2025

Find flight deals to Key Largo

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 16 July 2025.

Sat 6/906:00LHR - MIA
1 stop16h 30mSWISS
Mon 22/919:40MIA - LHR
1 stop17h 10mSWISS
Deal found 14/7£352
Fri 29/810:00LGW - MIA
Nonstop9h 20mMultiple Airlines
Fri 5/920:43MIA - LGW
2 stops33h 07mMultiple Airlines
Deal found 15/7£352
Sat 6/906:30LHR - MIA
1 stop13h 10mLufthansa
Mon 22/916:40MIA - LHR
1 stop13h 00mLufthansa
Deal found 14/7£353
Mon 25/810:00LGW - MIA
Nonstop9h 20mNorse Atlantic UK
Sat 6/917:20MIA - LGW
Nonstop8h 40mNorse Atlantic UK
Deal found 14/7£355
Mon 22/908:10LCY - MIA
1 stop14h 20mSWISS
Mon 6/1019:40MIA - LCY
1 stop16h 35mSWISS
Deal found 15/7£355
Mon 25/810:00LGW - MIA
Nonstop9h 20mA.P.G.
Tue 9/917:15MIA - LGW
Nonstop8h 45mA.P.G.
Deal found 15/7£357
Tue 25/1119:30LHR - MIA
1 stop27h 35mScandinavian Airlines
Wed 3/1219:55MIA - LHR
2 stops17h 35mScandinavian Airlines
Deal found 14/7£358
Thu 2/1009:25LCY - MIA
1 stop13h 05mMultiple Airlines
Thu 9/1016:40MIA - LCY
1 stop20h 55mMultiple Airlines
Deal found 15/7£360
Mon 25/806:30LHR - MIA
1 stop13h 10mMultiple Airlines
Tue 9/919:40MIA - LHR
1 stop17h 10mMultiple Airlines
Deal found 15/7£366
Tue 4/1112:15LHR - MIA
1 stop13h 40mIcelandair
Wed 12/1117:15MIA - LHR
1 stop12h 35mIcelandair
Deal found 16/7£371
Tue 23/915:05LGW - MIA
1 stop13h 12mBritish Airways
Tue 30/916:04MIA - LGW
1 stop11h 06mBritish Airways
Deal found 13/7£376
Wed 29/1007:40STN - MIA
1 stop17h 20mMultiple Airlines
Sun 2/1121:45MIA - STN
1 stop18h 10mMultiple Airlines
Deal found 14/7£379

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 16 July 2025.
Use the filters below to find and compare flights to Key Largo that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 6/9

06:00-17:30

1 stop16h 30m

Miami

Mon 22/9

19:40-17:50

1 stop17h 10m

£352

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Fri 29/8

10:00-14:20

Nonstop9h 20m

Miami

Fri 5/9

20:43-10:50

2 stops33h 07m

£352

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 6/9

06:30-14:40

1 stop13h 10m

Miami

Mon 22/9

16:40-10:40

1 stop13h 00m

£353

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 25/8

10:00-14:20

Nonstop9h 20m

Miami

Sat 6/9

17:20-07:00

Nonstop8h 40m

£355

LondonMiami

LCY - MIA

LCYMIA

London City

Mon 22/9

08:10-17:30

1 stop14h 20m

Miami

Mon 6/10

19:40-17:15

1 stop16h 35m

£355

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 25/8

10:00-14:20

Nonstop9h 20m

Miami

Tue 9/9

17:15-07:00

Nonstop8h 45m

£357

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 25/11

19:30-18:05

1 stop27h 35m

Miami

Wed 3/12

19:55-18:30

2 stops17h 35m

£358

LondonMiami

LCY - MIA

LCYMIA

London City

Thu 2/10

09:25-17:30

1 stop13h 05m

Miami

Thu 9/10

16:40-18:35

1 stop20h 55m

£360

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 25/8

06:30-14:40

1 stop13h 10m

Miami

Tue 9/9

19:40-17:50

1 stop17h 10m

£366

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 4/11

12:15-20:55

1 stop13h 40m

Miami

Wed 12/11

17:15-10:50

1 stop12h 35m

£371

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 34 results
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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

When is the best time to book a flight to Key Largo?

Use this chart to determine the optimal time to book a return flight from London to Key Largo. Price data was last updated on 11 July 2025.

The price you pay for your flight to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Key Largo?

On average, a flight from London to Key Largo takes 12 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.

When is the cheapest time to fly to Key Largo?

Use this chart to determine the cheapest time to fly return from London to Key Largo. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Key Largo should consider flying on Monday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Wednesday evenings, when prices are usually at their highest.

Weekly flight availability to Key Largo

The most flights from London to Key Largo are scheduled on a Monday (27 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (24 on average).

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from London to Key Largo are Norse Atlantic UK, Delta 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 16 July 2025.
Get a feel of what it's like to fly with SWISS, United Airlines, andVirgin Atlantic 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.

Boarding

7.6

Crew

8.2

Overall

7.5

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Boarding

7.6

Crew

8.2

Overall

7.5

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Boarding

7.6

Crew

8.2

Overall

7.5

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Boarding

7.6

Crew

8.2

Overall

7.5

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Boarding

7.6

Crew

8.2

Overall

7.5

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Norse Atlantic UK
7.2
Good

Boarding

7.6

Crew

8.2

Overall

7.5

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

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 £498, however they can be found for as little as £97.

  • 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 20 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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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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