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£361+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Key Largo in 2025

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 12 December 2025.

Wed 31/1212:30LGW - MIA
1 stop14h 02mBritish Airways
Thu 15/116:40MIA - LGW
1 stop11h 20mBritish Airways
Deal found 10/12£479
Wed 31/1212:30LGW - MIA
1 stop14h 02mBritish Airways
Wed 14/116:40MIA - LGW
1 stop11h 20mBritish Airways
Deal found 10/12£483
Wed 10/1219:05LCY - MIA
2 stops27h 50mITA Airways
Sat 31/123:15MIA - LCY
1 stop30h 40mITA Airways
Deal found 10/12£486
Thu 11/1208:15LHR - MIA
1 stop35h 35mTAP AIR PORTUGAL
Fri 16/123:35MIA - LHR
1 stop12h 55mTAP AIR PORTUGAL
Deal found 10/12£496
Wed 10/1216:45LCY - MIA
1 stop30h 10mITA Airways
Thu 15/123:15MIA - LCY
2 stops17h 35mITA Airways
Deal found 10/12£506
Tue 23/1218:30LHR - MIA
1 stop25h 20mTAP AIR PORTUGAL
Mon 26/116:35MIA - LHR
1 stop24h 00mTAP AIR PORTUGAL
Deal found 10/12£512
Wed 31/1212:30LGW - MIA
1 stop14h 02mBritish Airways
Sat 17/116:40MIA - LGW
1 stop11h 20mBritish Airways
Deal found 10/12£513
Fri 12/1216:40LCY - MIA
2 stops33h 15mITA Airways
Mon 16/320:40MIA - LCY
1 stop15h 30mITA Airways
Deal found 10/12£518
Thu 25/1210:45LHR - MIA
1 stop15h 00mBritish Airways
Thu 8/116:44MIA - LHR
1 stop11h 36mBritish Airways
Deal found 11/12£519
Wed 10/1216:45LCY - MIA
1 stop30h 10mITA Airways
Fri 16/119:40MIA - LCY
2 stops36h 00mITA Airways
Deal found 10/12£521
Thu 11/1211:25LHR - MIA
1 stop14h 20mIberia
Thu 15/116:44MIA - LHR
1 stop11h 36mIberia
Deal found 10/12£521
Thu 11/1211:45LGW - MIA
1 stop14h 00mBritish Airways
Sun 11/116:40MIA - LGW
1 stop11h 20mBritish Airways
Deal found 10/12£521

Find flight deals to Key Largo

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 12 December 2025.

Return from

£449

One-way from

£361

Popular in

December

Cheapest in

September

Average price

£631
28/2-15/4
  • 28/2-15/4
  • 2 total stops
  • 42h 25m total
  • London to Miami
Search Deals
British Airways
  • British Airways
  • 5/2
  • 1 total stop
  • 17h 55m total
  • London to Key Largo
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
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 12 December 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

Mon 19/1

20:35-20:55

1 stop29h 20m

Miami

Sun 25/1

17:15-19:30

1 stop21h 15m

£452

LondonMiami

STN - MIA

STNMIA

London Stansted

Thu 26/2

20:05-14:40

2 stops23h 35m

Miami

Tue 10/3

17:40-18:40

2 stops21h 00m

£457

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Thu 5/2

10:00-19:30

1 stop14h 30m

Miami

Sat 14/2

21:45-16:25

1 stop13h 40m

£457

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Wed 11/2

10:00-19:30

1 stop14h 30m

Miami

Sun 15/2

21:45-16:25

1 stop13h 40m

£457

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 26/1

10:00-19:30

1 stop14h 30m

Miami

Fri 30/1

21:45-16:25

1 stop13h 40m

£457

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sun 8/2

10:00-19:30

1 stop14h 30m

Miami

Fri 13/2

21:45-16:25

1 stop13h 40m

£457

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sat 7/2

10:00-19:30

1 stop14h 30m

Miami

Thu 12/2

21:45-16:25

1 stop13h 40m

£457

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 2/2

21:25-14:50

2 stops22h 25m

Miami

Mon 9/2

16:35-09:50

1 stop12h 15m

£459

LondonMiami

LTN - MIA

LTNMIA

London Luton

Wed 22/4

05:30-20:00

1 stop19h 30m

Miami

Mon 27/4

21:45-22:55

1 stop20h 10m

£459

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 10/2

09:00-17:30

1 stop13h 30m

Miami

Mon 16/2

16:40-13:00

1 stop15h 20m

£462

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 60 results
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2
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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

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 5 December 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 13 hours 22 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 (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 Finnair.

British Airways
British Airways
From £342
Virgin Atlantic
Virgin Atlantic
From £373
Finnair
Finnair
From £359
TAP AIR PORTUGAL
TAP AIR PORTUGAL
From £330

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 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 12 December 2025.
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
1,334 reviews
Check prices

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Virgin Atlantic
7.5
Good
675 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Norse Atlantic UK
7.2
Good
Finnair
7.6
Good
1,334 reviews
Check prices

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
TAP AIR PORTUGAL
7.1
Good
2,089 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,571 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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, Delta 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 £54, however they can be found for as little as £37.

  • 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 30 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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