HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$69+ Cheap flights from Florida Keys to San Juan

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — SJU
sep. 8 — sep. 151
lun. 9/8
lun. 9/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Florida Keys to San Juan with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Florida Keys to San Juan

Keep the following information in mind while searching for Florida Keys to San Juan flight deals. Data was last updated septiembre 3, 2025.

Round-trip from

$143
(Mytrip)

One-way from

$69
(Frontier)

Popular in

January

Cheapest in

April

Average price

$444
From Florida Keys to San Juan
Search Deals
One-way flight from Florida Keys to San Juan
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Florida Keys to San Juan

Cheapest flights from Florida Keys to San Juan
Explore the most affordable flight options available from Florida Keys to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 3, 2025.

This Mytrip deal was found by Cheapflights users on 9/2. 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.
vie. 10/245:13 pmMIA - SJU
Nonstop2h 43mFrontier
lun. 10/279:06 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 9/2$143
This Cheapflightsfares deal was found by Cheapflights users on 9/1. 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.
vie. 10/37:10 amMIA - SJU
Nonstop2h 42mFrontier
vie. 10/109:06 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 9/1$149
This Frontier deal was found by Cheapflights users on 9/2. 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.
vie. 10/37:10 amMIA - SJU
Nonstop2h 42mFrontier
lun. 10/63:40 amSJU - MIA
2 stops18h 09mFrontier
Deal found 9/2$151
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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.
lun. 11/312:27 pmMIA - SJU
Nonstop2h 43mFrontier
jue. 11/66:54 pmSJU - MIA
Nonstop2h 51mFrontier
Deal found 9/2$156
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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.
vie. 10/37:10 amMIA - SJU
Nonstop2h 42mFrontier
lun. 10/610:57 amSJU - MIA
Nonstop2h 53mFrontier
Deal found 9/2$157
This Mytrip deal was found by Cheapflights users on 9/1. 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.
lun. 9/227:10 amMIA - SJU
Nonstop2h 42mFrontier
vie. 9/267:50 pmSJU - MIA
Nonstop2h 47mFrontier
Deal found 9/1$158
This Mytrip deal was found by Cheapflights users on 9/1. 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.
lun. 10/67:10 amMIA - SJU
Nonstop2h 42mFrontier
jue. 10/99:06 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 9/1$159
This Mytrip deal was found by Cheapflights users on 9/2. 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.
vie. 10/311:27 pmMIA - SJU
Nonstop2h 43mFrontier
lun. 11/39:00 amSJU - MIA
1 stop25h 12mFrontier
Deal found 9/2$160
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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.
vie. 9/193:55 pmMIA - SJU
Nonstop2h 50mFrontier
vie. 9/267:50 pmSJU - MIA
Nonstop2h 47mFrontier
Deal found 9/2$161
This Mytrip deal was found by Cheapflights users on 9/2. 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.
mar. 10/1410:29 pmMIA - SJU
1 stop16h 55mFrontier
dom. 10/195:30 amSJU - MIA
Nonstop2h 48mFrontier
Deal found 9/2$162
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/224:37 pmEYW - SJU
2 stops18h 29mAmerican Airlines
lun. 10/2711:56 amSJU - EYW
1 stop7h 26mAmerican Airlines
Deal found 9/1$385
This American Airlines deal was found by Cheapflights users on 9/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/11:59 pmEYW - SJU
1 stop4h 15mAmerican Airlines
lun. 10/67:00 amSJU - EYW
1 stop12h 22mAmerican Airlines
Deal found 9/3$425

Cheapflights Fare Finder

 
Customize your flight search to find flights from Florida Keys to San Juan 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 septiembre 3, 2025.
Use the filters below to find and compare flights from Florida Keys to San Juan that are best for you.

Fly from

Florida Keys

Fly to

San Juan

Route

Depart

Return

Price

MiamiSan Juan

MIA - SJU

MIASJU

Miami

jue. 10/23

5:13 pm-7:56 pm

Nonstop2h 43m

San Juan Luis Munoz Marin Intl

lun. 10/27

9:06 pm-11:56 pm

Nonstop2h 50m

$151

MiamiSan Juan

MIA - SJU

MIASJU

Miami

vie. 10/3

7:00 pm-9:56 am

1 stop14h 56m

San Juan Luis Munoz Marin Intl

vie. 10/10

9:06 pm-11:56 pm

Nonstop2h 50m

$155

MiamiSan Juan

MIA - SJU

MIASJU

Miami

vie. 10/3

7:10 am-9:52 am

Nonstop2h 42m

San Juan Luis Munoz Marin Intl

mar. 10/7

6:22 am-9:12 am

1 stop26h 50m

$156

MiamiSan Juan

MIA - SJU

MIASJU

Miami

jue. 10/2

7:10 am-9:52 am

Nonstop2h 42m

San Juan Luis Munoz Marin Intl

vie. 10/10

9:06 pm-11:56 pm

Nonstop2h 50m

$161

MiamiSan Juan

MIA - SJU

MIASJU

Miami

jue. 9/18

7:10 am-9:52 am

Nonstop2h 42m

San Juan Luis Munoz Marin Intl

vie. 9/19

7:50 pm-10:37 pm

Nonstop2h 47m

$161

MiamiSan Juan

MIA - SJU

MIASJU

Miami

vie. 10/24

5:13 pm-7:56 pm

Nonstop2h 43m

San Juan Luis Munoz Marin Intl

lun. 10/27

9:06 pm-11:56 pm

Nonstop2h 50m

$163

MiamiSan Juan

MIA - SJU

MIASJU

Miami

vie. 10/24

5:13 pm-7:56 pm

Nonstop2h 43m

San Juan Luis Munoz Marin Intl

dom. 10/26

5:30 am-8:18 am

Nonstop2h 48m

$163

MiamiSan Juan

MIA - SJU

MIASJU

Miami

vie. 10/17

5:13 pm-7:56 pm

Nonstop2h 43m

San Juan Luis Munoz Marin Intl

vie. 10/24

9:06 pm-11:56 pm

Nonstop2h 50m

$163

MiamiSan Juan

MIA - SJU

MIASJU

Miami

vie. 11/7

9:45 pm-1:32 am

Nonstop2h 47m

San Juan Luis Munoz Marin Intl

jue. 11/13

6:54 pm-8:45 pm

Nonstop2h 51m

$164

MiamiSan Juan

MIA - SJU

MIASJU

Miami

jue. 10/9

5:13 pm-7:56 pm

Nonstop2h 43m

San Juan Luis Munoz Marin Intl

lun. 10/13

9:06 pm-11:56 pm

Nonstop2h 50m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/2

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Florida Keys to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Florida Keys 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 Florida Keys to San Juan
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated septiembre 3, 2025.
See what other customers who have flown with Delta, American Airlines, and JetBlue from Florida Keys to San Juan have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,972 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,972 reviews
Delta
8.0
Very good
7,972 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,972 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
JetBlue
7.2
Good
2,916 reviews
Delta
8.0
Very good
7,972 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Spirit Airlines
6.3
Okay
8,012 reviews
Delta
8.0
Very good
7,972 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Frontier
5.8
Fair
3,196 reviews
Delta
8.0
Very good
7,972 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

Find useful and relevant information for your journey from Florida Keys to San Juan. 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 Florida Keys to San Juan?

    Airlines like Frontier and American Airlines fly from Florida Keys to San Juan in about 2h 43m. The time it takes to get you to your destination can typically vary by up to 15h 46m. The distance from Florida Keys to San Juan is about 1044 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Florida Keys to San Juan that include hotel bookings?

    Yes. In addition to deals on Florida Keys to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Florida Keys to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Florida Keys to San Juan.

  • Can I find deals for business class flights from Florida Keys to San Juan?

    Yes. Cheapflights offers flight deals from Florida Keys to San Juan 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 Florida Keys to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Florida Keys to San Juan (average of $254). Flying from Florida Keys to San Juan 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Florida Keys to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Orlando to Luis Munoz Marin Intl flights
Fort Lauderdale to Luis Munoz Marin Intl flights
Tampa to Luis Munoz Marin Intl flights
Miami to Luis Munoz Marin Intl flights
Orlando to Ponce flights
Orlando to Aguadilla flights
Jacksonville to Luis Munoz Marin Intl flights
West Palm Beach to Luis Munoz Marin Intl flights
Pensacola to Luis Munoz Marin Intl flights
Sarasota to Luis Munoz Marin Intl flights
Fort Myers to Luis Munoz Marin Intl flights
Fort Lauderdale to Aguadilla flights
Panama City to Luis Munoz Marin Intl flights
Valparaiso to Luis Munoz Marin Intl flights
Tampa to Aguadilla flights
Daytona Beach to Luis Munoz Marin Intl flights
Tallahassee to Luis Munoz Marin Intl flights
Orlando to Mayagüez flights
Melbourne to Luis Munoz Marin Intl flights
Gainesville to Luis Munoz Marin Intl flights
Key West to Luis Munoz Marin Intl flights
Orlando to Vieques flights
Jacksonville to Aguadilla flights
Fort Lauderdale to Ponce flights
Fort Lauderdale to Mayagüez flights
Fort Myers to Aguadilla flights
Miami to Vieques flights
Tampa to Ponce flights
Miami to Aguadilla flights
Fort Lauderdale to Vieques flights
Tampa to Mayagüez flights
Miami to Mayagüez flights
Tampa to Culebra flights
Fort Lauderdale to Culebra flights
Orlando Sanford Intl to Luis Munoz Marin Intl flights
Jacksonville to Vieques flights
Fort Myers to Mayagüez flights
Pensacola to Vieques flights
Orlando to Culebra flights
Pensacola to Aguadilla flights
Miami to Culebra flights
Pensacola to Ponce flights
Jacksonville to Culebra flights

Top airline flying from Florida Keys to San Juan

Discover the top airline that operate flights from Florida Keys to San Juan. 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 septiembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$360Average$455FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.