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£55+ 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 9/1. 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
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

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 18 December 2025.

Cheapest one-way flight

£23

Cheapest round-trip flight

£310

Cheapest airline

Spirit Airlines

Most popular destination

London Heathrow (LHR)
The cheapest one-way flight from Key Largo is currently to New York LaGuardia.
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The cheapest round-trip flight from Key Largo is currently to London Heathrow.
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On average, Spirit Airlines currently has the cheapest one-way flight from Key Largo (avg. price of £173).
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London Heathrow (LHR) is currently the most popular flight destination from Key Largo (average return price of £380).
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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 18 December 2025.

Sun 15/212:53MIA - CTG
1 stop10h 23mDelta
Mon 23/204:35CTG - MIA
1 stop10h 18mDelta
Deal found 15/12£210
Sat 17/116:12MIA - CTG
1 stop15h 54mCopa Airlines
Mon 19/111:30CTG - MIA
1 stop13h 07mCopa Airlines
Deal found 15/12£224
Thu 19/216:37MIA - CTG
1 stop7h 54mLATAM Airlines
Tue 24/212:39CTG - MIA
2 stops26h 14mLATAM Airlines
Deal found 16/12£228
Thu 19/216:37MIA - CTG
1 stop13h 24mLATAM Airlines
Mon 23/212:39CTG - MIA
2 stops22h 12mLATAM Airlines
Deal found 16/12£229
Tue 3/312:53MIA - CTG
1 stop10h 24mDelta
Mon 16/305:05CTG - MIA
1 stop9h 48mDelta
Deal found 16/12£230
Wed 14/116:12MIA - CTG
1 stop15h 54mCopa Airlines
Sat 24/112:03CTG - MIA
1 stop6h 53mCopa Airlines
Deal found 15/12£242
Mon 16/318:27MIA - CTG
1 stop5h 33mCopa Airlines
Tue 24/306:25CTG - MIA
1 stop14h 59mCopa Airlines
Deal found 17/12£244
Thu 1/116:12MIA - CTG
1 stop15h 54mCopa Airlines
Sat 10/112:03CTG - MIA
1 stop12h 34mCopa Airlines
Deal found 17/12£248
Mon 16/313:53MIA - CTG
1 stop10h 23mDelta
Fri 20/304:35CTG - MIA
1 stop10h 18mDelta
Deal found 17/12£249
Sun 8/217:15MIA - GLA
1 stop11h 40mIcelandair
Thu 12/211:15GLA - MIA
1 stop14h 40mIcelandair
Deal found 16/12£367
Wed 14/117:15MIA - MAN
1 stop12h 30mIcelandair
Tue 27/111:55MAN - MIA
1 stop14h 00mIcelandair
Deal found 15/12£369
Fri 6/217:15MIA - MAN
1 stop12h 30mIcelandair
Tue 10/211:55MAN - MIA
1 stop14h 00mIcelandair
Deal found 16/12£391

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 18 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

MiamiCartagena

MIA - CTG

MIACTG

Miami

Thu 19/2

16:37-00:31

1 stop7h 54m

Cartagena Rafael Nunez

Thu 26/2

16:17-10:51

1 stop18h 34m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Sun 15/2

12:53-23:16

1 stop10h 23m

Cartagena Rafael Nunez

Sun 22/2

06:50-14:53

1 stop8h 03m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Mon 23/2

16:37-00:31

1 stop7h 54m

Cartagena Rafael Nunez

Wed 25/2

04:35-14:53

1 stop10h 18m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Wed 18/2

12:53-20:01

1 stop7h 08m

Cartagena Rafael Nunez

Wed 25/2

05:05-14:53

1 stop9h 48m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Wed 18/2

12:53-20:01

1 stop7h 08m

Cartagena Rafael Nunez

Sun 22/2

05:05-14:53

1 stop9h 48m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Mon 16/2

16:37-00:31

1 stop7h 54m

Cartagena Rafael Nunez

Thu 26/2

16:17-14:53

1 stop22h 36m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Mon 16/2

12:53-00:31

1 stop11h 38m

Cartagena Rafael Nunez

Sun 22/2

05:05-14:53

1 stop9h 48m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Fri 16/1

07:07-20:01

1 stop12h 54m

Cartagena Rafael Nunez

Tue 20/1

05:05-14:53

1 stop9h 48m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Thu 29/1

12:53-20:01

1 stop7h 08m

Cartagena Rafael Nunez

Sun 1/2

04:35-14:53

1 stop10h 18m

£210

MiamiCartagena

MIA - CTG

MIACTG

Miami

Mon 23/2

12:53-23:16

1 stop10h 23m

Cartagena Rafael Nunez

Mon 2/3

05:05-14:53

1 stop9h 48m

£210

Flights are sorted by cheapest return flights first.

Deals found on 16/12

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 12 December 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 £214). Flying from Key Largo in June will prove the most costly (average of £457). 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, American Airlines. These airlines fly to the following popular destinations: London.

American Airlines
American Airlines
From £73
Virgin Atlantic
Virgin Atlantic
From £285
British Airways
British Airways
From £380
Bahamasair
Bahamasair
From £190

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
1,338 reviews
Check prices

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.4

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
1,338 reviews
Finnair
7.6
Good
1,338 reviews
Check prices

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.4

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
675 reviews
Finnair
7.6
Good
1,338 reviews
Check prices

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.4

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
1,508 reviews
Finnair
7.6
Good
1,338 reviews
Check prices

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.4

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
American Airlines
7.2
Good
11,053 reviews
Finnair
7.6
Good
1,338 reviews
Check prices

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.4

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
7,583 reviews
Finnair
7.6
Good
1,338 reviews
Check prices

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Comfort

7.4

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 18 December 2025.

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

    Marseille airport offers the cheapest routes to Edinburgh, from £22; whereas London Luton airport is typically cheaper if you're flying to Aberdeen, from £24. 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 Dublin to London from £22 round trip
    Travel from Dublin to Edinburgh from £22 round trip
    Travel from London to Poznan from £24 round trip
    Travel from London to Lyon from £28 round trip
    Travel from Manchester to Oslo from £28 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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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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