Find flights
Deals
Airlines

£450+ 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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
20 Aug — 27 Aug1
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 21 July 2026.

Mon 31/806:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Sun 6/900:30
MIA
-
LHR
1 stop16h 30m
TAP AIR PORTUGAL
Deal found 17/7£460
Mon 9/1120:35
LHR
-
MIA
1 stop29h 15m
Icelandair
Wed 18/1117:15
MIA
-
LHR
1 stop21h 15m
Icelandair
Deal found 18/7£460
Thu 24/913:35
LGW
-
MIA
2 stops35h 10m
Multiple Airlines
Thu 8/1021:35
MIA
-
LGW
1 stop17h 00m
Multiple Airlines
Deal found 16/7£460
Wed 16/911:20
LHR
-
MIA
1 stop17h 05m
TAP AIR PORTUGAL
Wed 7/1016:20
MIA
-
LHR
1 stop13h 00m
TAP AIR PORTUGAL
Deal found 19/7£461
Fri 4/911:35
STN
-
MIA
2 stops32h 00m
Multiple Airlines
Thu 17/916:20
MIA
-
STN
2 stops17h 40m
Multiple Airlines
Deal found 16/7£462
Sat 12/906:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Fri 25/900:20
MIA
-
LHR
1 stop17h 35m
TAP AIR PORTUGAL
Deal found 18/7£462
Mon 31/816:25
LGW
-
MIA
1 stop27h 10m
TAP AIR PORTUGAL
Sun 6/900:30
MIA
-
LGW
1 stop28h 15m
TAP AIR PORTUGAL
Deal found 17/7£462
Thu 3/918:45
LHR
-
MIA
1 stop24h 50m
TAP AIR PORTUGAL
Wed 9/903:50
MIA
-
LHR
1 stop13h 10m
TAP AIR PORTUGAL
Deal found 20/7£463
Tue 15/916:25
LGW
-
MIA
1 stop27h 10m
TAP AIR PORTUGAL
Tue 22/916:20
MIA
-
LGW
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 21/7£464
Thu 17/906:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Fri 25/900:20
MIA
-
LHR
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 20/7£465
Mon 16/1107:45
LTN
-
MIA
1 stop18h 05m
Multiple Airlines
Mon 23/1122:35
MIA
-
LTN
1 stop17h 15m
Multiple Airlines
Deal found 20/7£465
Tue 15/906:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Tue 22/916:20
MIA
-
LHR
1 stop24h 40m
TAP AIR PORTUGAL
Deal found 21/7£465

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 21 July 2026.

Return from

£460

One-way from

£450

Popular in

December

Cheapest in

September

Average price

£608
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 31/8-6/9
  • 2 total stops
  • 30h 05m total
  • London to Miami
Search Deals
SWISS
  • SWISS
  • 29/8
  • 1 total stop
  • 13h 25m total
  • London to Key Largo
Search Deals
Highest demand for flights based on searches. 3% potential increase in price.
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for return flights in July 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 21 July 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

LGW - MIA

LGWMIA

London Gatwick

Fri 8/1

14:35-19:55

1 stop34h 20m

Miami

Tue 26/1

21:40-16:35

1 stop13h 55m

£484

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 10/12

13:40-14:50

1 stop30h 10m

Miami

Tue 15/12

16:50-12:40

1 stop14h 50m

£488

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 7/9

13:45-14:35

1 stop29h 50m

Miami

Sun 13/9

16:20-12:45

1 stop15h 25m

£489

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 24/8

08:40-17:30

1 stop13h 50m

Miami

Thu 3/9

08:45-06:55

2 stops17h 10m

£515

LondonMiami

LTN - MIA

LTNMIA

London Luton

Sat 3/10

09:35-19:20

1 stop14h 45m

Miami

Sat 10/10

21:35-22:15

1 stop19h 40m

£515

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 2/12

09:00-17:30

1 stop13h 30m

Miami

Tue 8/12

17:20-11:05

1 stop12h 45m

£515

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 4/9

08:40-17:25

1 stop13h 45m

Miami

Thu 17/9

13:44-11:55

2 stops17h 11m

£515

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Fri 4/9

21:15-14:35

2 stops46h 20m

Miami

Wed 16/9

03:50-09:45

1 stop24h 55m

£521

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 9/10

07:25-22:19

2 stops19h 54m

Miami

Sat 17/10

13:30-09:20

1 stop14h 50m

£522

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 18/11

11:10-23:47

2 stops17h 37m

Miami

Wed 25/11

08:58-05:55

2 stops15h 57m

£523

Flights are sorted by cheapest return flights first.

Deals found on 19/7

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 13 hours 39 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 (36 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (21 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.

British Airways
British Airways
From £131
Virgin Atlantic
Virgin Atlantic
From £249
American Airlines
American Airlines
From £414
Finnair
Finnair
From £358

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 Delta.

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 21 July 2026.
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
1,422 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

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
1,422 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

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
7.5
Good
693 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

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
11,832 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

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
3,260 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

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
8,125 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

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, 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 £228, however they can be found for as little as £60.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Key Largo by cabin class

Find flights to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class flights to Key Largo
Business Class flights to Key Largo
Prem Economy Class flights to Key Largo
Economy Class flights to Key Largo

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Key Largo?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Key Largo. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.