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$59+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJU
Mar 2 — Mar 91
Mon 3/2
Mon 3/9
1 adult, Economy
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Cheap 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 January 31, 2026.

This Expedia deal was found by Cheapflights users on 1/31. 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.
Mon 3/23:26 pm
MIA
-
SJU
Nonstop2h 32m
Spirit Airlines
Sun 3/81:59 am
SJU
-
MIA
1 stop10h 44m
Spirit Airlines
Deal found 1/31$122
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Mon 3/910:42 pm
MIA
-
SJU
Nonstop2h 39m
Multiple Airlines
Wed 3/2511:07 am
SJU
-
MIA
Nonstop2h 52m
Multiple Airlines
Deal found 1/29$123
This Kiwi.com deal was found by Cheapflights users on 1/30. 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.
Sat 2/214:06 pm
MIA
-
SJU
Nonstop2h 37m
Multiple Airlines
Thu 2/2611:52 am
SJU
-
MIA
Nonstop2h 58m
Multiple Airlines
Deal found 1/30$124
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:05 am
MIA
-
SJU
1 stop6h 17m
Spirit Airlines
Sat 2/2811:52 am
SJU
-
MIA
Nonstop2h 58m
Spirit Airlines
Deal found 1/29$125
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Sat 2/73:26 pm
MIA
-
SJU
Nonstop2h 32m
Spirit Airlines
Wed 2/2511:52 am
SJU
-
MIA
Nonstop2h 58m
Spirit Airlines
Deal found 1/28$126
This Cheapflightsfares deal was found by Cheapflights users on 1/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/13:26 pm
MIA
-
SJU
Nonstop2h 32m
Spirit Airlines
Mon 3/301:39 am
SJU
-
MIA
1 stop11h 08m
Spirit Airlines
Deal found 1/30$127
This Frontier deal was found by Cheapflights users on 1/29. 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.
Mon 2/239:02 am
MIA
-
SJU
Nonstop2h 37m
Frontier
Thu 2/266:00 am
SJU
-
MIA
Nonstop2h 57m
Frontier
Deal found 1/29$128
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Tue 3/1010:40 pm
MIA
-
SJU
Nonstop2h 39m
Multiple Airlines
Tue 3/2412:05 pm
SJU
-
MIA
1 stop8h 02m
Multiple Airlines
Deal found 1/29$129
This Frontier deal was found by Cheapflights users on 1/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/29:14 am
MIA
-
SJU
Nonstop2h 36m
Frontier
Mon 4/66:00 am
SJU
-
MIA
Nonstop3h 00m
Frontier
Deal found 1/30$130
This Spirit deal was found by Cheapflights users on 1/30. 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/109:25 pm
MIA
-
SJU
Nonstop2h 33m
Spirit Airlines
Mon 4/1311:03 am
SJU
-
MIA
Nonstop2h 52m
Spirit Airlines
Deal found 1/30$131
This Kiwi.com deal was found by Cheapflights users on 1/30. 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.
Thu 4/3010:42 pm
MIA
-
SJU
Nonstop2h 38m
Multiple Airlines
Sat 5/28:41 am
SJU
-
MIA
Nonstop3h 02m
Multiple Airlines
Deal found 1/30$132
This Expedia deal was found by Cheapflights users on 1/29. 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 2/243:26 pm
MIA
-
SJU
Nonstop2h 32m
Multiple Airlines
Sat 2/285:31 pm
SJU
-
MIA
1 stop31h 08m
Multiple Airlines
Deal found 1/29$133

Find 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 January 31, 2026.

Round-trip from

$122
(Expedia)

One-way from

$59
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$226
From Key Largo to Caribbean
Search Deals
One-way flight from Key Largo to Caribbean
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 31, 2026.
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

Sat 2/21

4:06 pm-7:43 pm

Nonstop2h 37m

San Juan Luis Munoz Marin Intl

Thu 2/26

11:52 am-1:50 pm

Nonstop2h 58m

$124

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 2/9

3:26 pm-6:58 pm

Nonstop2h 32m

San Juan Luis Munoz Marin Intl

Tue 2/24

2:59 am-12:43 pm

1 stop10h 44m

$136

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 2/25

3:26 pm-6:58 pm

Nonstop2h 32m

San Juan Luis Munoz Marin Intl

Sun 3/1

11:52 am-1:50 pm

Nonstop2h 58m

$169

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Thu 3/5

3:26 pm-6:58 pm

Nonstop2h 32m

San Juan Luis Munoz Marin Intl

Sat 3/7

3:59 am-12:43 pm

1 stop8h 44m

$182

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Fri 2/20

9:02 am-12:39 pm

Nonstop2h 37m

San Juan Luis Munoz Marin Intl

Sat 2/28

5:31 pm-11:39 pm

1 stop31h 08m

$204

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Thu 2/5

3:26 pm-6:58 pm

Nonstop2h 32m

San Juan Luis Munoz Marin Intl

Sun 2/8

2:59 am-12:56 pm

1 stop10h 57m

$204

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Fri 2/6

3:26 pm-6:58 pm

Nonstop2h 32m

San Juan Luis Munoz Marin Intl

Sat 2/7

2:59 am-12:56 pm

1 stop10h 57m

$204

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 2/23

3:26 pm-6:58 pm

Nonstop2h 32m

San Juan Luis Munoz Marin Intl

Mon 3/2

7:09 pm-12:16 pm

2 stops18h 07m

$218

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 3/16

9:25 pm-11:58 pm

Nonstop2h 33m

San Juan Luis Munoz Marin Intl

Sat 3/21

1:39 am-12:47 pm

1 stop11h 08m

$226

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 2/11

6:55 am-2:55 pm

1 stop7h 00m

San Juan Luis Munoz Marin Intl

Tue 2/17

5:35 am-11:50 am

1 stop7h 15m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

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, March is the cheapest month in which you can book a flight from Key Largo to Caribbean (average of $61). 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 January 31, 2026.

It’s optimal to fly from Key Largo to Caribbean at noon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the morning.

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 January 24, 2026.

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. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 January 31, 2026.

The most flights from KE9 to 0CB are scheduled on a Thursday (20 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 January 31, 2026.
Read through reviews of airlines operating flights from Key Largo to Caribbean, such as American Airlines, Bahamasair, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,212 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
American Airlines
7.2
Good
11,212 reviews
American Airlines
7.2
Good
11,212 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
Bahamasair
5.8
Fair
66 reviews
American Airlines
7.2
Good
11,212 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
Frontier
5.7
Fair
3,054 reviews
American Airlines
7.2
Good
11,212 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.

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?

    Spirit Airlines, Copa Airlines, and Arajet can get you from Key Largo to Caribbean in just under 2h 32m. Your travel time can differ by up to 3h 36m. Airlines will cover a distance of 1044 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 Spirit Airlines. According to our data, you can fly for as low as $41. Users have also found prices from $48 and $68 on Frontier 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 - San Juan Luis Munoz Marin Intl, Miami - Punta Cana 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 Royal Air Maroc (96%), Finnair (86%) and British Airways (81%).

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

    Looking at all options, your cheapest flight can be booked for $62. While the most popular route (Miami - San Juan Luis Munoz Marin Intl) can be booked for $99 on average, our data indicates $412 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, March is the cheapest month in which you can book a flight from Key Largo to Caribbean (average of $61). 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.

See more FAQs

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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 January 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$264FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$67Average$256FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$83Average$339FlexibilityNo cancel feeOn-time62%
Western AirCheapest$96Average$300FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$108Average$420FlexibilityNo cancel feeOn-timeN/A
BahamasairCheapest$112Average$295FlexibilityNo cancel feeOn-time33%
ArajetCheapest$128Average$264FlexibilityNo cancel feeOn-timeN/A
Sky HighCheapest$141Average$367FlexibilityNo cancel feeOn-timeN/A
Caribbean AirlinesCheapest$147Average$410FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$147Average$355FlexibilityNo cancel feeOn-time70%

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