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San Juan

$47+ 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 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
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Round-trip from

$107
(Frontier)

One-way from

$47
(eDestinos)
From Florida Keys to San Juan
Search Deals
One-way flight from Florida Keys to San Juan
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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 May 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.
Wed 5/78:15 amMIA - SJU
Nonstop2h 38mFrontier
Fri 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.
Sat 5/1012:00 pmMIA - SJU
Nonstop2h 30mMultiple Airlines
Tue 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.
Sat 5/1012:00 pmMIA - SJU
Nonstop2h 30mSpirit Airlines
Sun 5/118:57 pmSJU - MIA
Nonstop2h 50mSpirit Airlines
Deal found 4/29$113
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.
Sat 5/105:39 pmMIA - SJU
Nonstop2h 30mAmerican Airlines
Sun 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.
Wed 5/710:37 amMIA - SJU
1 stop9h 11mDelta
Sun 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.
Thu 5/1511:55 amMIA - SJU
1 stop11h 35mSouthwest
Fri 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.
Wed 10/17:21 pmEYW - SJU
2 stops17h 24mAmerican Airlines
Sun 10/55:25 pmSJU - EYW
2 stops17h 52mAmerican Airlines
Deal found 4/30$345
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.
Mon 5/128:45 amEYW - SJU
1 stop5h 05mJetBlue
Sun 5/187:10 amSJU - EYW
1 stop6h 50mJetBlue
Deal found 4/29$439
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/128:45 amEYW - SJU
2 stops30h 55mUnited Airlines
Sat 5/171:05 amSJU - EYW
2 stops17h 00mUnited Airlines
Deal found 4/29$643

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 May 1, 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

Wed 5/7

8:15 am-10:53 am

Nonstop2h 38m

San Juan Luis Munoz Marin Intl

Fri 5/9

9:30 pm-12:26 am

Nonstop2h 56m

$107

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 5/10

12:00 pm-2:30 pm

Nonstop2h 30m

San Juan Luis Munoz Marin Intl

Tue 5/13

9:30 pm-12:26 am

Nonstop2h 56m

$109

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 5/10

12:00 pm-2:30 pm

Nonstop2h 30m

San Juan Luis Munoz Marin Intl

Sun 5/11

8:57 pm-11:47 pm

Nonstop2h 50m

$113

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 5/10

5:39 pm-8:09 pm

Nonstop2h 30m

San Juan Luis Munoz Marin Intl

Sun 5/11

6:10 am-9:00 am

Nonstop2h 50m

$196

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 5/7

10:37 am-7:48 pm

1 stop9h 11m

San Juan Luis Munoz Marin Intl

Sat 5/10

5:43 pm-12:37 am

1 stop6h 54m

$220

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Thu 5/15

11:55 am-11:30 pm

1 stop11h 35m

San Juan Luis Munoz Marin Intl

Fri 5/16

10:45 am-10:55 pm

2 stops12h 10m

$251

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Wed 10/1

7:21 pm-12:45 pm

2 stops17h 24m

San Juan Luis Munoz Marin Intl

Sun 10/5

5:25 pm-11:17 am

2 stops17h 52m

$345

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 5/12

8:45 am-1:50 pm

1 stop5h 05m

San Juan Luis Munoz Marin Intl

Sun 5/18

7:10 am-2:00 pm

1 stop6h 50m

$439

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 5/12

8:45 am-3:40 pm

2 stops30h 55m

San Juan Luis Munoz Marin Intl

Sat 5/17

1:05 am-6:05 pm

2 stops17h 00m

$643

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 5/6

6:00 am-8:26 am

Nonstop2h 26m

$47

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 19 results
1
2

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

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan 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 San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, 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 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 May 1, 2025.
Read through reviews of airlines operating flights from Florida Keys to San Juan, such as Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

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

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

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

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

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

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

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

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

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

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

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 San Juan. 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 San Juan one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $47. Frontier flights start at $50 while deals on Southwest start at $93 one-way.

  • 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 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

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$246Average$448FlexibilityNo cancel feeOn-time71%

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