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Puerto Rico

$47+ Cheap flights from Florida Keys to Puerto Rico

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — SJU
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Florida Keys to Puerto Rico

Keep the following information in mind while searching for Florida Keys to Puerto Rico flight deals. Data was last updated mayo 1, 2025.

Round-trip from

$107
(Frontier)

One-way from

$47
(eDestinos)
From Florida Keys to Puerto Rico
Search Deals
One-way flight from Florida Keys to Puerto Rico
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Find flight deals from Florida Keys to Puerto Rico

Cheapest flights from Florida Keys to Puerto Rico
Explore the most affordable flight options available from Florida Keys to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This Frontier deal was found by Cheapflights users on 4/30. 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.
mié. 5/78:15 amMIA - SJU
Nonstop2h 38mFrontier
vie. 5/99:30 pmSJU - MIA
Nonstop2h 56mFrontier
Deal found 4/30$107
This Justfly.com deal was found by Cheapflights users on 4/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/1012:00 pmMIA - SJU
Nonstop2h 30mMultiple Airlines
mar. 5/139:30 pmSJU - MIA
Nonstop2h 56mMultiple Airlines
Deal found 4/29$109
This eDestinos deal was found by Cheapflights users on 4/29. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/1012:00 pmMIA - SJU
Nonstop2h 30mSpirit Airlines
dom. 5/118:57 pmSJU - MIA
Nonstop2h 50mSpirit Airlines
Deal found 4/29$113
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
sáb. 6/213:55 pmMIA - BQN
Nonstop2h 38mFrontier
sáb. 6/287:28 pmBQN - MIA
Nonstop2h 39mFrontier
Deal found 4/30$181
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/105:39 pmMIA - SJU
Nonstop2h 30mAmerican Airlines
dom. 5/116:10 amSJU - MIA
Nonstop2h 50mAmerican Airlines
Deal found 4/30$196
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/710:37 amMIA - SJU
1 stop9h 11mDelta
dom. 5/116:15 amSJU - MIA
1 stop7h 00mDelta
Deal found 4/30$220
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/1511:55 amMIA - SJU
1 stop11h 35mSouthwest
vie. 5/1610:45 amSJU - MIA
2 stops12h 10mSouthwest
Deal found 4/29$251
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/17:21 pmEYW - SJU
2 stops17h 24mAmerican Airlines
dom. 10/55:25 pmSJU - EYW
2 stops17h 52mAmerican Airlines
Deal found 4/30$345
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/141:57 pmMIA - BQN
1 stop9h 12mUnited Airlines
lun. 5/1912:15 amBQN - MIA
1 stop11h 06mUnited Airlines
Deal found 4/30$415
This JetBlue deal was found by Cheapflights users on 4/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/52:30 pmMIA - BQN
1 stop11h 31mJetBlue
lun. 6/95:05 amBQN - MIA
1 stop8h 25mJetBlue
Deal found 4/30$428
This JetBlue deal was found by Cheapflights users on 4/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/128:45 amEYW - SJU
1 stop5h 05mJetBlue
dom. 5/187:10 amSJU - EYW
1 stop6h 50mJetBlue
Deal found 4/29$439
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/146:33 pmMIA - CPX
1 stop15h 20mMultiple Airlines
sáb. 6/218:20 amCPX - MIA
1 stop15h 17mMultiple Airlines
Deal found 4/30$464

Cheapflights Fare Finder

Customize your flight search to find flights from Florida Keys to Puerto Rico 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 mayo 1, 2025.
Use the filters below to find and compare flights from Florida Keys to Puerto Rico that are best for you.

Fly from

Florida Keys

Fly to

Puerto Rico

Route

Depart

Return

Price

MiamiSan Juan

MIA - SJU

MIASJU

Miami

mié. 5/7

8:15 am-10:53 am

Nonstop2h 38m

San Juan Luis Munoz Marin Intl

vie. 5/9

9:30 pm-12:26 am

Nonstop2h 56m

$107

MiamiSan Juan

MIA - SJU

MIASJU

Miami

sáb. 5/10

12:00 pm-2:30 pm

Nonstop2h 30m

San Juan Luis Munoz Marin Intl

mar. 5/13

9:30 pm-12:26 am

Nonstop2h 56m

$109

MiamiSan Juan

MIA - SJU

MIASJU

Miami

sáb. 5/10

12:00 pm-2:30 pm

Nonstop2h 30m

San Juan Luis Munoz Marin Intl

dom. 5/11

8:57 pm-11:47 pm

Nonstop2h 50m

$113

MiamiAguadilla

MIA - BQN

MIABQN

Miami

sáb. 6/21

3:55 pm-6:33 pm

Nonstop2h 38m

Aguadilla Borinquen

sáb. 6/28

7:28 pm-10:07 pm

Nonstop2h 39m

$181

MiamiSan Juan

MIA - SJU

MIASJU

Miami

sáb. 5/10

5:39 pm-8:09 pm

Nonstop2h 30m

San Juan Luis Munoz Marin Intl

dom. 5/11

6:10 am-9:00 am

Nonstop2h 50m

$196

MiamiSan Juan

MIA - SJU

MIASJU

Miami

mié. 5/7

10:37 am-7:48 pm

1 stop9h 11m

San Juan Luis Munoz Marin Intl

sáb. 5/10

5:43 pm-12:37 am

1 stop6h 54m

$220

MiamiSan Juan

MIA - SJU

MIASJU

Miami

jue. 5/15

11:55 am-11:30 pm

1 stop11h 35m

San Juan Luis Munoz Marin Intl

vie. 5/16

10:45 am-10:55 pm

2 stops12h 10m

$251

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

mié. 10/1

7:21 pm-12:45 pm

2 stops17h 24m

San Juan Luis Munoz Marin Intl

dom. 10/5

5:25 pm-11:17 am

2 stops17h 52m

$345

MiamiAguadilla

MIA - BQN

MIABQN

Miami

mié. 5/14

1:57 pm-11:09 pm

1 stop9h 12m

Aguadilla Borinquen

lun. 5/19

12:15 am-11:21 am

1 stop11h 06m

$415

MiamiAguadilla

MIA - BQN

MIABQN

Miami

jue. 6/5

2:30 pm-2:01 am

1 stop11h 31m

Aguadilla Borinquen

lun. 6/9

5:05 am-1:30 pm

1 stop8h 25m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 29 results
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Best time to book a flight from Florida Keys to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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 Puerto Rico

Rainfall in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Puerto Rico ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Puerto Rico when rainfall is around 2.2 in.

Temperature in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Puerto Rico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated mayo 1, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Florida Keys to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Florida Keys to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Florida Keys to Puerto Rico one-way?

    $47 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $50 and $93, respectively.

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

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

  • How can I find direct flights from Florida Keys to Puerto Rico?

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

  • Can I find deals for business class flights from Florida Keys to Puerto Rico?

    Yes. Cheapflights offers flight deals from Florida Keys to Puerto Rico 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 Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Florida Keys to Puerto Rico (average of $254). Flying from Florida Keys to Puerto Rico in December is currently the most expensive (average of $336). 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

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Alternative routes for Florida Keys to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Florida Keys to Puerto Rico

Discover the top airline that operate flights from Florida Keys to Puerto Rico. 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$246Average$448FlexibilityNo cancel feeOn-time71%

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