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$80+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJU
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
1 adult, Economy
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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 October 31, 2025.

This Frontier deal was found by Cheapflights users on 10/29. 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 11/2110:26 amMIA - SJU
Nonstop2h 47mFrontier
Mon 11/243:23 pmSJU - MIA
Nonstop2h 53mFrontier
Deal found 10/29$151
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Fri 12/124:10 pmMIA - SJU
Nonstop2h 40mMultiple Airlines
Sat 12/209:49 amSJU - MIA
Nonstop3h 00mMultiple Airlines
Deal found 10/29$152
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Fri 12/124:10 pmMIA - SJU
Nonstop2h 40mMultiple Airlines
Sun 12/213:54 amSJU - MIA
Nonstop3h 06mMultiple Airlines
Deal found 10/30$153
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 11/258:30 amMIA - SJU
Nonstop2h 37mMultiple Airlines
Fri 11/288:00 amSJU - MIA
Nonstop2h 50mMultiple Airlines
Deal found 10/30$154
This Booking.com deal was found by Cheapflights users on 10/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/249:56 pmMIA - SJU
1 stop21h 53mFrontier
Mon 12/810:42 amSJU - MIA
Nonstop3h 00mFrontier
Deal found 10/30$155
This Priceline deal was found by Cheapflights users on 10/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:44 pmMIA - SJU
Nonstop2h 37mMultiple Airlines
Mon 11/243:23 pmSJU - MIA
Nonstop2h 53mMultiple Airlines
Deal found 10/30$156
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 11/246:00 amMIA - SJU
Nonstop2h 40mMultiple Airlines
Thu 11/278:00 amSJU - MIA
Nonstop2h 50mMultiple Airlines
Deal found 10/30$157
This Frontier deal was found by Cheapflights users on 10/29. 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 11/29:45 pmMIA - SJU
Nonstop2h 47mFrontier
Fri 11/149:30 amSJU - MIA
Nonstop2h 47mFrontier
Deal found 10/29$158
This Priceline deal was found by Cheapflights users on 10/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:27 pmMIA - SJU
Nonstop2h 43mFrontier
Thu 11/66:54 pmSJU - MIA
Nonstop2h 51mFrontier
Deal found 10/29$159
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:27 pmMIA - SJU
Nonstop2h 43mFrontier
Sun 11/29:45 amSJU - MIA
Nonstop2h 47mFrontier
Deal found 10/29$160
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Thu 10/3010:45 pmMIA - SJU
Nonstop2h 47mFrontier
Sun 11/29:45 amSJU - MIA
Nonstop2h 47mFrontier
Deal found 10/29$161
This Expedia deal was found by Cheapflights users on 10/29. 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.
Tue 12/21:57 pmMIA - PUJ
Nonstop2h 36mArajet
Fri 12/51:01 pmPUJ - MIA
Nonstop2h 47mArajet
Deal found 10/29$230

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 October 31, 2025.

Round-trip from

$151
(Frontier)

One-way from

$80
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$205
From Key Largo to Caribbean
Search Deals
One-way flight from Key Largo to Caribbean
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 31, 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

MiamiPunta Cana

MIA - PUJ

MIAPUJ

Miami

Wed 2/18

4:18 pm-7:54 pm

Nonstop2h 36m

Punta Cana

Wed 2/25

1:01 pm-2:48 pm

Nonstop2h 47m

$231

MiamiPunta Cana

MIA - PUJ

MIAPUJ

Miami

Thu 12/4

12:55 pm-4:31 pm

Nonstop2h 36m

Punta Cana

Thu 12/11

9:38 am-11:25 am

Nonstop2h 47m

$231

MiamiPunta Cana

MIA - PUJ

MIAPUJ

Miami

Fri 2/6

4:18 pm-7:54 pm

Nonstop2h 36m

Punta Cana

Fri 2/13

1:01 pm-2:48 pm

Nonstop2h 47m

$233

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 11/15

6:20 am-5:25 pm

1 stop10h 05m

San Juan Luis Munoz Marin Intl

Wed 11/19

3:55 pm-9:50 pm

1 stop6h 55m

$234

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 1/26

5:20 pm-12:35 am

1 stop6h 15m

San Juan Luis Munoz Marin Intl

Fri 1/30

5:40 am-4:10 pm

2 stops11h 30m

$234

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 11/5

6:55 am-6:35 pm

1 stop10h 40m

San Juan Luis Munoz Marin Intl

Sat 11/15

8:50 am-4:30 pm

1 stop8h 40m

$234

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sun 11/16

5:05 am-8:45 am

Nonstop2h 40m

San Juan Luis Munoz Marin Intl

Thu 11/20

3:59 am-12:19 pm

2 stops9h 20m

$236

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 11/15

6:00 am-2:17 pm

1 stop7h 17m

San Juan Luis Munoz Marin Intl

Wed 11/19

1:57 pm-12:46 am

1 stop11h 49m

$237

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 11/22

8:49 pm-4:28 pm

2 stops42h 39m

San Juan Luis Munoz Marin Intl

Fri 11/28

8:00 am-9:50 am

Nonstop2h 50m

$238

MiamiSanto Domingo

MIA - SDQ

MIASDQ

Miami

Tue 1/27

6:25 pm-9:45 pm

Nonstop2h 20m

Santo Domingo Las Americas

Tue 2/3

3:35 pm-4:55 pm

Nonstop2h 20m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

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, February is the cheapest month in which you can book a flight from Key Largo to Caribbean (average of $59). Flying from Key Largo to Caribbean in September is currently the most expensive (average of $109). 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 October 31, 2025.

It’s optimal to fly from Key Largo to Caribbean in the morning. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Key Largo to Caribbean?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Caribbean. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Key Largo to Caribbean flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 31, 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
11,034 reviews

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

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
11,034 reviews
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

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
8,116 reviews
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

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
3,123 reviews
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

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
5.7
Fair
64 reviews
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

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?

    Arajet, Southwest, and Frontier can get you from Key Largo to Caribbean in just under 2h 36m. Your travel time can differ by up to 7h 29m. Airlines will cover a distance of 910 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 Frontier. According to our data, you can fly for as low as $91. Users have also found prices from $94 and $95 on Delta and Arajet, 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 - Santo Domingo Las Americas, Miami - Punta Cana or Miami - San Juan Luis Munoz Marin 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 Spirit Airlines (92%), Frontier (80%) and British Airways (75%).

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

    Looking at all options, your cheapest flight can be booked for $86. While the most popular route (Miami - Santo Domingo Las Americas) can be booked for $220 on average, our data indicates $415 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, February is the cheapest month in which you can book a flight from Key Largo to Caribbean (average of $59). Flying from Key Largo to Caribbean in September is currently the most expensive (average of $109). 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 October 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$60Average$267FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$72Average$268FlexibilityNo cancel feeOn-time65%
Western AirCheapest$97Average$302FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$100Average$354FlexibilityNo cancel feeOn-time62%
DeltaCheapest$108Average$538FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$143Average$365FlexibilityNo cancel feeOn-time70%
ArajetCheapest$145Average$282FlexibilityNo cancel feeOn-timeN/A
BahamasairCheapest$153Average$290FlexibilityNo cancel feeOn-time33%
Caribbean AirlinesCheapest$166Average$485FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$180Average$431FlexibilityNo cancel feeOn-time63%

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