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£364+ 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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
8 feb — 15 feb1
1 adult
1 adult, Economy, 0 bags

Flights to Key Largo in 2026

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 9 gennaio 2026.

Return from

£398

One-way from

£364

Popular in

December

Cheapest in

September

Average price

£464
United Airlines
  • United Airlines
  • 20/2-14/3
  • 3 total stops
  • 34h 40m total
  • London to Miami
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SWISS
  • SWISS
  • 15/2
  • 1 total stop
  • 24h 20m total
  • London to Key Largo
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for return flights in January 2026
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Find flight deals to Key Largo

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 9 gennaio 2026.

mer 9/911:30LHR - MIA
1 stop13h 35mIberia
mer 16/919:05MIA - LHR
Nonstop8h 55mIberia
Deal found 8/1£397
ven 20/208:00LHR - MIA
2 stops19h 20mUnited Airlines
sab 14/317:40MIA - LHR
1 stop15h 20mUnited Airlines
Deal found 8/1£398
mer 14/117:40LCY - MIA
1 stop26h 00mSWISS
lun 19/119:50MIA - LCY
1 stop16h 15mSWISS
Deal found 8/1£399
lun 23/209:25LHR - MIA
Nonstop10h 25mDelta
mer 15/418:05MIA - LHR
Nonstop9h 00mDelta
Deal found 8/1£399
mar 10/311:45LGW - MIA
1 stop14h 00mMultiple Airlines
mar 17/318:20MIA - LGW
1 stop12h 30mMultiple Airlines
Deal found 8/1£399
lun 16/214:45LHR - MIA
Nonstop10h 25mDelta
lun 2/317:10MIA - LHR
Nonstop8h 50mDelta
Deal found 8/1£399
mer 14/117:25LGW - MIA
1 stop31h 05mAir Europa
ven 6/321:45MIA - LGW
1 stop13h 40mAir Europa
Deal found 8/1£399
mar 17/309:15LCY - MIA
1 stop13h 15mSWISS
mar 31/316:50MIA - LCY
1 stop19h 40mSWISS
Deal found 8/1£400
mar 10/214:35LHR - MIA
Nonstop10h 25mDelta
mer 25/221:25MIA - LHR
Nonstop8h 45mDelta
Deal found 7/1£400
sab 17/116:35LGW - MIA
1 stop27h 15mTAP AIR PORTUGAL
lun 26/116:35MIA - LGW
1 stop12h 15mTAP AIR PORTUGAL
Deal found 7/1£400
gio 29/117:40LCY - MIA
1 stop28h 50mSWISS
lun 2/216:40MIA - LCY
1 stop19h 25mSWISS
Deal found 7/1£401
ven 13/218:00LHR - MIA
1 stop31h 20mAir Canada
mer 25/212:20MIA - LHR
1 stop13h 10mAir Canada
Deal found 8/1£401

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 9 gennaio 2026.
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

lun 16/2

14:45-20:10

Nonstop10h 25m

Miami

mar 3/3

17:10-07:00

Nonstop8h 50m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

mar 17/2

09:25-14:50

Nonstop10h 25m

Miami

gio 26/2

22:10-11:55

Nonstop8h 45m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

mar 17/2

14:35-20:00

Nonstop10h 25m

Miami

mar 3/3

17:10-07:00

Nonstop8h 50m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

lun 16/2

09:25-14:50

Nonstop10h 25m

Miami

gio 26/2

17:10-07:00

Nonstop8h 50m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

mer 18/2

14:00-19:25

Nonstop10h 25m

Miami

mar 3/3

22:00-11:45

Nonstop8h 45m

£399

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

mar 24/2

10:00-19:30

1 stop14h 30m

Miami

gio 26/2

21:45-16:25

1 stop13h 40m

£402

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

mar 10/3

10:00-20:30

1 stop14h 30m

Miami

lun 16/3

22:45-16:25

1 stop13h 40m

£402

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

mar 24/2

10:00-19:30

1 stop14h 30m

Miami

lun 2/3

21:45-16:25

1 stop13h 40m

£402

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

ven 6/3

06:50-20:27

2 stops18h 37m

Miami

dom 8/3

19:45-15:50

2 stops16h 05m

£403

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

lun 16/2

10:00-19:30

1 stop14h 30m

Miami

gio 19/2

21:45-16:25

1 stop13h 40m

£404

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 60 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 2 January 2026.

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 53 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 Wednesday (24 on average). You will have fewer flight options on Monday, 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 Finnair.

British Airways
British Airways
From £341
Virgin Atlantic
Virgin Atlantic
From £371
Finnair
Finnair
From £358
TAP AIR PORTUGAL
TAP AIR PORTUGAL
From £329

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 9 gennaio 2026.
Get a feel of what it's like to fly with KLM, Finnair, 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.
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Finnair
7.6
Good
1,346 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,659 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Food

7.2

Boarding

7.8

Crew

8.4

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 £600, however they can be found for as little as £34.

  • 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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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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