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£61+ Cheap flights from Key Largo

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
MIA — LHR
16 Nov — 23 Nov1
1 adult
1 adult, Economy

What to know about flights from Key Largo

Discover essential information about flights departing from Key Largo, including flight schedules, destinations, airlines operating at the Key Largo airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 17 October 2025.

Cheapest one-way flight

£122

Cheapest round-trip flight

£205

Cheapest airline

Spirit Airlines

Most popular destination

London Heathrow (LHR)
The cheapest one-way flight from Key Largo is currently to Lisbon Humberto Delgado.
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The cheapest round-trip flight from Key Largo is currently to Nassau Intl.
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On average, Spirit Airlines currently has the cheapest one-way flight from Key Largo (avg. price of £158).
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London Heathrow (LHR) is currently the most popular flight destination from Key Largo (average return price of £388).
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Find flights from Key Largo

Enter your travel dates to find the best prices.

Cheapest flights from Key Largo
Explore the most affordable flight options available from Key Largo. Find the lowest fares based on data from user searches, with prices last updated on 17 October 2025.

Sat 1/1106:30MIA - MDE
Nonstop3h 30mAvianca
Wed 5/1111:30MDE - MIA
Nonstop3h 35mAvianca
Deal found 16/10£187
Fri 7/1105:30MIA - MDE
Nonstop3h 30mAvianca
Mon 10/1117:00MDE - MIA
2 stops10h 10mAvianca
Deal found 16/10£188
Tue 10/314:00MIA - MDE
1 stop5h 55mAvianca
Tue 17/323:50MDE - MIA
Nonstop3h 45mAvianca
Deal found 16/10£191
Tue 17/306:30MIA - MDE
Nonstop3h 30mAvianca
Tue 24/305:00MDE - MIA
1 stop5h 50mAvianca
Deal found 16/10£193
Mon 27/1014:09MIA - MDE
1 stop6h 31mArajet
Thu 30/1010:05MDE - MIA
1 stop6h 50mArajet
Deal found 16/10£196
Thu 30/1019:35MIA - MDE
Nonstop3h 40mAvianca
Wed 5/1123:50MDE - MIA
Nonstop3h 45mAvianca
Deal found 16/10£198
Mon 9/213:09MIA - MDE
1 stop6h 31mArajet
Sat 21/210:05MDE - MIA
1 stop6h 50mArajet
Deal found 16/10£201
Fri 7/1104:59MIA - MDE
1 stop9h 16mCopa Airlines
Tue 11/1118:20MDE - MIA
1 stop6h 25mCopa Airlines
Deal found 16/10£202
Fri 9/123:35MIA - LHR
1 stop14h 20mTAP AIR PORTUGAL
Sun 18/106:00LHR - MIA
1 stop21h 05mTAP AIR PORTUGAL
Deal found 15/10£385
Sun 9/1123:50MIA - LGW
1 stop29h 00mTAP AIR PORTUGAL
Mon 17/1116:35LGW - MIA
1 stop27h 15mTAP AIR PORTUGAL
Deal found 15/10£385
Wed 25/300:35MIA - LGW
1 stop29h 15mTAP AIR PORTUGAL
Sat 18/421:15LGW - MIA
2 stops30h 05mTAP AIR PORTUGAL
Deal found 15/10£386
Fri 14/1123:35MIA - LHR
1 stop14h 20mTAP AIR PORTUGAL
Wed 19/1108:15LHR - MIA
1 stop18h 35mTAP AIR PORTUGAL
Deal found 16/10£386

Find flights from Key Largo within your budget

 
Find flights departing from Key Largo that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 17 October 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Sat 1/11

19:35-22:15

Nonstop3h 40m

Medellín Jose Maria Cordova Intl

Wed 5/11

21:00-03:10

1 stop6h 10m

£191

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Tue 10/3

14:00-18:55

1 stop5h 55m

Medellín Jose Maria Cordova Intl

Tue 17/3

05:00-11:50

1 stop5h 50m

£195

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Mon 27/10

14:09-19:40

1 stop6h 31m

Medellín Jose Maria Cordova Intl

Thu 30/10

10:05-17:55

1 stop6h 50m

£196

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Fri 14/11

05:24-14:15

1 stop8h 51m

Medellín Jose Maria Cordova Intl

Mon 17/11

08:37-15:45

1 stop7h 08m

£202

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Fri 14/11

05:24-14:15

1 stop8h 51m

Medellín Jose Maria Cordova Intl

Fri 21/11

10:46-21:45

1 stop10h 59m

£202

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Fri 30/1

12:49-20:35

1 stop7h 46m

Medellín Jose Maria Cordova Intl

Mon 2/2

10:46-18:56

1 stop8h 10m

£202

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Mon 24/11

07:31-14:15

1 stop6h 44m

Medellín Jose Maria Cordova Intl

Mon 8/12

09:17-15:45

1 stop6h 28m

£202

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Thu 27/11

04:59-14:15

1 stop9h 16m

Medellín Jose Maria Cordova Intl

Tue 9/12

12:42-18:51

1 stop6h 09m

£202

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Mon 10/11

04:59-14:45

1 stop9h 46m

Medellín Jose Maria Cordova Intl

Sun 14/12

12:42-00:45

1 stop12h 03m

£202

MiamiMedellín

MIA - MDE

MIAMDE

Miami

Mon 10/11

04:59-14:45

1 stop9h 46m

Medellín Jose Maria Cordova Intl

Fri 14/11

10:46-18:51

1 stop8h 05m

£202

Flights are sorted by cheapest return flights first.

Deals found on 16/10

Showing 1-10 of 60 results
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Best time to book a flight from Key Largo

Have a flexible travel schedule? Discover the best time to fly from 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.

Travel insights for flights from Key Largo

Get recent, data-driven insights about flights from Key Largo including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Key Largo to Heathrow. Price data was last updated on 10 October 2025.

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Key Largo?

Currently, January is the cheapest month in which you can book a flight from Key Largo (average of £213). Flying from Key Largo in June will prove the most costly (average of £456). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Key Largo?

Many airlines operate round-trip flights from Key Largo: Virgin Atlantic, British Airways, Air France, Finnair, KLM. These airlines fly to the following popular destinations: London.

American Airlines
American Airlines
From £72
Virgin Atlantic
Virgin Atlantic
From £292
British Airways
British Airways
From £359
Avianca
Avianca
From £151

Airline reviews for flights from Key Largo

Get insights into the airlines that provide service from 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 airline for your flight from Key Largo. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Get a feel of what it's like to fly with Finnair, Virgin Atlantic, andAir France from Key Largo 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
1,333 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Finnair
7.6
Good
1,333 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Virgin Atlantic
7.5
Good
670 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Air France
7.4
Good
1,477 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Iberia
7.0
Good
2,995 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
British Airways
6.7
Okay
7,459 reviews
Finnair
7.6
Good
1,333 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

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Related info for your journey

Access useful and relevant information related to your journey from Key Largo. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 17 October 2025.

  • What is the cheapest airport to fly out of Key Largo?

    London Stansted airport offers the cheapest routes to Abuja, from £20; whereas London Gatwick airport is typically cheaper if you're flying to Aberdeen, from £25. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

  • What is the cheapest month to fly from Key Largo?

    At the present moment the cheapest month to fly from Key Largo is currently January; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Key Largo?

    Check out the cheapest flights from Key Largo to embark to:
    Travel from London to Cologne from £20 round trip
    Travel from London to Lyon from £25 round trip
    Travel from Lyon to London from £26 round trip
    Travel from London to Milan from £27 round trip
    Travel from London to Málaga from £27 round trip

  • How does Cheapflights help users find flights from Key Largo?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from 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 from Key Largo?

    By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Key Largo.

  • Can Cheapflights find flights from Key Largo with no change fees?

    Certainly. Search results for flights from Key Largo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from Key Largo become cheaper?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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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 from Key Largo?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from 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 from Key Largo?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Key Largo.

Can Cheapflights find flights from Key Largo with no change fees?

Certainly. Search results for flights from Key Largo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Key Largo become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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