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£301+ Cheap flights to Key Largo

— MIA
14 Oct — 21 Oct1
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

Thu 19/1109:00 -
1 stop13h 30m
Mon 30/1116:40 -
1 stop18h 40m
Deal found 12/9£421
Sun 4/1008:20 -
1 stop15h 43m
Thu 29/1016:24 -
1 stop11h 26m
Deal found 11/9£423
Sat 10/1010:55 -
Nonstop9h 55m
Tue 27/1016:24 -
1 stop12h 36m
Deal found 11/9£429
Sat 19/906:50 -
2 stops17h 02m
Sat 26/913:26 -
1 stop12h 29m
Deal found 12/9£431
Sat 3/1014:10 -
1 stop12h 52m
Tue 27/1016:17 -
1 stop11h 03m
Deal found 11/9£432
Sat 3/1010:45 -
2 stops19h 10m
Tue 27/1016:24 -
1 stop11h 26m
Deal found 11/9£434
Sat 19/906:30 -
1 stop13h 15m
Sat 26/912:21 -
1 stop12h 59m
Deal found 12/9£436
Sat 10/1009:30 -
2 stops16h 19m
Tue 27/1013:15 -
1 stop13h 55m
Deal found 11/9£441
Fri 16/1016:20 -
1 stop22h 54m
Sun 25/1007:16 -
1 stop19h 59m
Deal found 14/9£443
Thu 19/1109:00 -
2 stops20h 24m
Mon 30/1108:00 -
2 stops17h 30m
Deal found 12/9£444
Sat 3/1017:00 -
2 stops22h 27m
Tue 27/1021:00 -
1 stop14h 45m
Deal found 11/9£456
Sat 10/1010:25 -
2 stops19h 28m
Tue 27/1018:20 -
2 stops34h 40m
Deal found 11/9£460

Find flight deals to Key Largo

Return from

£421

One-way from

£301

Popular in

August

Cheapest in

January

Average price

£517
United Airlines
  • United Airlines
  • 19/11-30/11
  • 2 total stops
  • 32h 10m total
  • London to Miami
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31/1-31/12
  • 31/1-31/12
  • 2 total stops
  • 38h 25m total
  • London to Key Largo
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£27 potential increase over avg. return 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 September 2026
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Cheapflights Fare Finder

 
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

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Thu 11/3

06:15-20:50

1 stop19h 35m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£365

LondonMiami

LGW London Gatwick - MIA Miami

LGWMIA

London Gatwick

Wed 30/9

06:00-18:45

1 stop17h 45m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£366

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Mon 14/12

06:05-00:45

2 stops23h 40m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£367

LondonMiami

LTN London Luton - MIA Miami

LTNMIA

London Luton

Sun 17/1

16:20-19:30

1 stop32h 10m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£367

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Sun 8/11

06:05-00:45

2 stops23h 40m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£367
Fastest return journey

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Sat 28/11

09:00-17:30

1 stop13h 30m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£368

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Mon 28/12

07:30-17:30

1 stop15h 00m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£369

LondonMiami

LTN London Luton - MIA Miami

LTNMIA

London Luton

Thu 25/2

07:15-19:30

1 stop17h 15m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£370

LondonMiami

LTN London Luton - MIA Miami

LTNMIA

London Luton

Thu 3/12

07:15-19:30

1 stop17h 15m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£372

LondonMiami

LTN London Luton - MIA Miami

LTNMIA

London Luton

Mon 21/9

17:55-18:45

2 stops29h 50m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£373

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 30 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 Monday (16 on average). You will have fewer flight options on Monday, 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 Iberia.

British Airways
British Airways
From £130
Virgin Atlantic
Virgin Atlantic
From £247
American Airlines
American Airlines
From £411
Iberia
Iberia
From £397

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from London to Key Largo are Icelandair, Scandinavian Airlines and SWISS.

Rainfall in Key Largo 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

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 a feel of what it's like to fly with Finnair,Virgin Atlantic, andAmerican Airlines 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
1,429 reviews
Check prices

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

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
1,429 reviews
Finnair
7.6
Good
1,429 reviews
Check prices

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

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
7.4
Good
694 reviews
Finnair
7.6
Good
1,429 reviews
Check prices

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

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
12,051 reviews
Finnair
7.6
Good
1,429 reviews
Check prices

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

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.
Iberia
7.0
Good
3,246 reviews
Finnair
7.6
Good
1,429 reviews
Check prices

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

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
8,220 reviews
Finnair
7.6
Good
1,429 reviews
Check prices

Comfort

7.4

Crew

8.2

Entertainment

6.9

Boarding

7.7

Food

6.7

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, British Airways 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 £114, however they can be found for as little as £66.

  • 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 40 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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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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