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$74+ Cheap flights from Key Largo, FL to Caribbean

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Key Largo to Caribbean

Keep the following information in mind while searching for Key Largo to Caribbean flight deals. Data was last updated September 15, 2025.

Round-trip from

$145
(eDestinos)

One-way from

$74
(eDestinos)

Popular in

August

Cheapest in

October

Average price

$228
From Key Largo to Caribbean
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One-way flight from Key Largo to Caribbean
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Key Largo to Caribbean

Cheapest flights from Key Largo to Caribbean
Explore the most affordable flight options available from Key Largo to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This eDestinos deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:10 amMIA - SJU
Nonstop2h 42mFrontier
Fri 10/109:06 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 9/13$145
This Cheapflightsfares deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:13 pmMIA - SJU
Nonstop2h 43mFrontier
Fri 10/249:06 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 9/13$147
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:13 pmMIA - SJU
Nonstop2h 43mFrontier
Thu 10/239:06 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 9/14$148
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/297:10 amMIA - SJU
Nonstop2h 42mFrontier
Fri 10/37:50 pmSJU - MIA
Nonstop2h 47mFrontier
Deal found 9/14$149
This eDestinos deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:10 amMIA - SJU
Nonstop2h 42mFrontier
Sun 10/195:30 amSJU - MIA
Nonstop2h 48mFrontier
Deal found 9/15$153
This SmartFares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:45 pmMIA - SJU
Nonstop2h 47mFrontier
Thu 11/66:54 pmSJU - MIA
Nonstop2h 51mFrontier
Deal found 9/15$155
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/297:10 amMIA - SJU
Nonstop2h 42mFrontier
Thu 10/210:57 amSJU - MIA
Nonstop2h 53mFrontier
Deal found 9/14$157
This Frontier deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:10 amMIA - SJU
Nonstop2h 42mFrontier
Thu 10/210:57 amSJU - MIA
Nonstop2h 53mFrontier
Deal found 9/12$158
This Cheapflightsfares deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:59 pmMIA - SJU
Nonstop2h 38mFrontier
Thu 12/189:30 pmSJU - MIA
Nonstop3h 00mFrontier
Deal found 9/13$162
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:00 pmMIA - SJU
1 stop14h 56mFrontier
Fri 10/37:50 pmSJU - MIA
Nonstop2h 47mFrontier
Deal found 9/14$165
This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:25 pmMIA - SDQ
Nonstop2h 20mArajet
Sun 10/193:35 pmSDQ - MIA
Nonstop2h 20mArajet
Deal found 9/14$220
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:25 pmMIA - SDQ
Nonstop2h 20mArajet
Wed 10/2910:19 amSDQ - MIA
Nonstop2h 20mArajet
Deal found 9/14$221

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Caribbean that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Key Largo to Caribbean that are best for you.

Fly from

Key Largo

Fly to

Caribbean

Route

Depart

Return

Price

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 10/1

6:55 am-5:25 pm

1 stop10h 30m

San Juan Luis Munoz Marin Intl

Sun 10/5

5:45 am-6:00 pm

1 stop12h 15m

$192

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 11/11

8:05 am-5:26 pm

1 stop8h 21m

San Juan Luis Munoz Marin Intl

Wed 11/19

6:36 pm-12:48 am

1 stop7h 12m

$238

MiamiNassau

MIA - NAS

MIANAS

Miami

Sat 10/18

7:45 pm-8:50 pm

Nonstop1h 05m

Nassau Intl

Sun 10/19

7:45 am-8:50 am

Nonstop1h 05m

$265

MiamiNassau

MIA - NAS

MIANAS

Miami

Thu 10/30

7:05 am-1:15 pm

1 stop6h 10m

Nassau Intl

Sun 11/2

1:10 pm-10:05 pm

1 stop8h 55m

$265

MiamiNassau

MIA - NAS

MIANAS

Miami

Mon 9/22

7:45 pm-8:45 pm

Nonstop1h 00m

Nassau Intl

Mon 9/29

5:30 pm-6:35 pm

Nonstop1h 05m

$278

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 11/11

1:30 pm-11:20 pm

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Mon 11/17

5:45 am-12:05 pm

1 stop7h 20m

$281

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 11/15

8:15 am-11:15 pm

1 stop14h 00m

San Juan Luis Munoz Marin Intl

Tue 11/18

8:55 am-8:45 pm

2 stops12h 50m

$281

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 9/30

11:40 am-10:30 pm

1 stop10h 50m

San Juan Luis Munoz Marin Intl

Sat 10/4

5:45 am-4:45 pm

1 stop11h 00m

$281

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 10/28

11:45 am-11:50 pm

2 stops12h 05m

San Juan Luis Munoz Marin Intl

Fri 10/31

5:00 am-11:40 am

1 stop6h 40m

$285

MiamiNassau

MIA - NAS

MIANAS

Miami

Mon 11/3

6:00 am-1:49 pm

1 stop7h 49m

Nassau Intl

Tue 11/11

2:55 pm-12:48 am

1 stop9h 53m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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

Have a flexible travel schedule? Discover the best time to fly to Caribbean from Key Largo with our price prediction graph.
Estimated round-trip 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 from Key Largo to Caribbean

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

Currently, September is the cheapest month in which you can book a flight from Key Largo to Caribbean (average of $254). Flying from Key Largo to Caribbean in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KE9 to CB?

Find hourly flight availability from Key Largo to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Key Largo to Caribbean, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Key Largo to Caribbean

Explore weekly flight availability from Key Largo to Caribbean. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2025.

The most flights from KE9 to 0CB are scheduled on a Thursday (18 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Caribbean

Get insights into the airlines that provide service to Caribbean. 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 Caribbean. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Key Largo to Caribbean, such as American Airlines, Spirit Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Boarding

7.5

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Boarding

7.5

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Spirit Airlines
6.3
Okay
8,015 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Boarding

7.5

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Frontier
5.8
Fair
3,172 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Boarding

7.5

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Bahamasair
5.2
Fair
57 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Boarding

7.5

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Caribbean. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Key Largo to Caribbean?

    Southwest, Delta, and American Airlines can get you from Key Largo to Caribbean in just under 1h 05m. Your travel time can differ by up to 9h 25m. Airlines will cover a distance of 183 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Key Largo to Caribbean one-way?

    For one-way options, check prices for Bahamasair. According to our data, you can fly for as low as $82. Users have also found prices from $84 and $88 on Frontier and Southwest, respectively.

  • What are the most popular routes from Key Largo to Caribbean?

    When deciding which route to take from Key Largo to Caribbean consider Miami - San Juan Luis Munoz Marin Intl, Miami - Santo Domingo Las Americas or Miami - Nassau Intl as they are the most popular.

  • What are the most reliable airlines from Key Largo to Caribbean?

    The top 3 most reliable airlines when flying from Key Largo to Caribbean are Atlas Air (90%), British Airways (69%) and American Airlines (66%).

  • What are the cheapest flights from Key Largo to Caribbean?

    Looking at all options, your cheapest flight can be booked for $65. While the most popular route (Miami - San Juan Luis Munoz Marin Intl) can be booked for $122 on average, our data indicates $317 when flying from Key Largo to Caribbean.

  • Can I find deals for flights from Key Largo to Caribbean that include hotel bookings?

    Yes. In addition to deals on Key Largo to Caribbean flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to Caribbean?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key Largo to Caribbean.

  • Can I find deals for business class flights from Key Largo to Caribbean?

    Yes. Cheapflights offers flight deals from Key Largo to Caribbean by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, September is the cheapest month in which you can book a flight from Key Largo to Caribbean (average of $254). Flying from Key Largo to Caribbean in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Key Largo to Caribbean

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Key Largo to Caribbean

Discover the top 10 airlines that operate flights from Key Largo to Caribbean. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$51Average$259FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$63Average$276FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$95Average$371FlexibilityNo cancel feeOn-time62%
Western AirCheapest$96Average$300FlexibilityNo cancel feeOn-timeN/A
ArajetCheapest$136Average$272FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$152Average$355FlexibilityNo cancel feeOn-time70%
BahamasairCheapest$161Average$286FlexibilityNo cancel feeOn-time33%
LATAM AirlinesCheapest$171Average$327FlexibilityNo cancel feeOn-time81%
Caribbean AirlinesCheapest$174Average$485FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$180Average$417FlexibilityNo cancel feeOn-time63%

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