Cheap flights from Key Largo, FL to Puerto Rico from $31

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 9/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
MIA — SJU
Jun 13 — Jun 201

How far in advance should I book a flight from Key Largo to Puerto Rico?

Travelers have found it’s best to book a flight 37 days in advance to save up to 46% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 37 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Key Largo to Puerto Rico 1-2 weeks in advance for as low as $162, or $234 for flights within the next 24 hours.

What is the cheapest month to fly from Key Largo to Puerto Rico?

Flights from Key Largo to Puerto Rico lean towards being more expensive in December. Prices are generally better when you fly from Key Largo to Puerto Rico in April, with the cheapest ticket starting at $60.

What is the cheapest time of day to fly from KE9 to PR?

When flying from Key Largo to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Key Largo to Puerto Rico flights in June & July 2024

Find cheap flight options from Key Largo to Puerto Rico specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,022,473 searches. Prices were last updated on June 8, 2024.
Check out some of the best flight deals from Key Largo to Puerto Rico in 2024. For more flight deals, be sure to check back very soon.
Tue 6/1812:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Tue 6/2512:41 pmSJU - MIA
Nonstop2h 47mMultiple Airlines
Deal found 6/8$72
Mon 7/112:29 amMIA - SJU
Nonstop2h 39mFrontier
Fri 7/58:41 pmSJU - MIA
Nonstop2h 47mFrontier
Deal found 6/6$75
Mon 6/2412:29 amMIA - SJU
Nonstop2h 39mFrontier
Wed 6/269:05 amSJU - MIA
Nonstop2h 55mFrontier
Deal found 6/7$76
Thu 6/2012:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Tue 6/2512:41 pmSJU - MIA
Nonstop2h 47mMultiple Airlines
Deal found 6/8$77
Fri 6/2112:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Wed 6/262:00 pmSJU - MIA
Nonstop2h 48mMultiple Airlines
Deal found 6/7$78
Thu 7/42:36 pmMIA - SJU
Nonstop2h 39mFrontier
Fri 7/58:41 pmSJU - MIA
Nonstop2h 47mFrontier
Deal found 6/7$80
Fri 6/2112:29 amMIA - SJU
Nonstop2h 39mFrontier
Wed 6/268:41 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 6/8$81
Tue 6/256:00 amMIA - SJU
Nonstop2h 43mFrontier
Thu 6/279:05 amSJU - MIA
Nonstop2h 55mFrontier
Deal found 6/7$82
Mon 7/812:29 amMIA - SJU
Nonstop2h 43mMultiple Airlines
Tue 7/162:59 pmSJU - MIA
Nonstop2h 48mMultiple Airlines
Deal found 6/7$83

Key Largo to Puerto Rico 2024 flight deals

Discover exclusive flight deals for travel between Key Largo and Puerto Rico in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,022,473 searches. Data last updated June 8, 2024.
Check out some of the best flight deals from Key Largo to Puerto Rico in 2024. For more flight deals, be sure to check back very soon.
Tue 6/1812:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Tue 6/2512:41 pmSJU - MIA
Nonstop2h 47mMultiple Airlines
Deal found 6/8$72
Mon 7/112:29 amMIA - SJU
Nonstop2h 39mFrontier
Fri 7/58:41 pmSJU - MIA
Nonstop2h 47mFrontier
Deal found 6/6$75
Mon 6/2412:29 amMIA - SJU
Nonstop2h 39mFrontier
Wed 6/269:05 amSJU - MIA
Nonstop2h 55mFrontier
Deal found 6/7$76
Thu 6/2012:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Tue 6/2512:41 pmSJU - MIA
Nonstop2h 47mMultiple Airlines
Deal found 6/8$77
Fri 6/2112:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Wed 6/262:00 pmSJU - MIA
Nonstop2h 48mMultiple Airlines
Deal found 6/7$78
Thu 10/312:29 amMIA - SJU
Nonstop2h 43mFrontier
Tue 10/88:41 pmSJU - MIA
Nonstop2h 53mFrontier
Deal found 6/7$80
Fri 6/2112:29 amMIA - SJU
Nonstop2h 39mFrontier
Wed 6/268:41 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 6/8$81
Tue 6/256:00 amMIA - SJU
Nonstop2h 43mFrontier
Thu 6/279:05 amSJU - MIA
Nonstop2h 55mFrontier
Deal found 6/7$82
Mon 7/812:29 amMIA - SJU
Nonstop2h 43mMultiple Airlines
Tue 7/162:59 pmSJU - MIA
Nonstop2h 48mMultiple Airlines
Deal found 6/7$83

Key Largo to Puerto Rico flights leaving soon

Find last-minute flight options from Key Largo to Puerto Rico for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,022,473 searches. Data last updated June 8, 2024.
Have a look at some of the flights available from Key Largo to Puerto Rico departing last-minute. It's wise to confirm all flight details are correct before booking.
Tue 6/1812:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Wed 6/262:00 pmSJU - MIA
Nonstop2h 48mMultiple Airlines
Deal found 6/7$72
Thu 6/2012:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Tue 6/2512:41 pmSJU - MIA
Nonstop2h 47mMultiple Airlines
Deal found 6/8$77
Fri 6/2112:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Wed 6/262:00 pmSJU - MIA
Nonstop2h 48mMultiple Airlines
Deal found 6/7$78
Tue 6/1811:26 amMIA - SJU
Nonstop2h 41mMultiple Airlines
Wed 6/198:41 pmSJU - MIA
Nonstop2h 50mMultiple Airlines
Deal found 6/7$82
Tue 6/1812:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Sun 6/239:15 pmSJU - MIA
Nonstop2h 47mMultiple Airlines
Deal found 6/7$83
Sat 6/224:28 pmMIA - SJU
Nonstop2h 37mMultiple Airlines
Tue 6/258:41 pmSJU - MIA
Nonstop2h 50mMultiple Airlines
Deal found 6/7$84
Wed 6/1912:29 amMIA - SJU
Nonstop2h 39mMultiple Airlines
Sat 6/221:30 pmSJU - MIA
Nonstop2h 48mMultiple Airlines
Deal found 6/7$86
Thu 6/2012:29 amMIA - SJU
Nonstop2h 39mFrontier
Tue 6/258:41 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 6/6$87
Thu 6/2012:29 amMIA - SJU
Nonstop2h 39mFrontier
Mon 6/248:41 pmSJU - MIA
Nonstop2h 50mFrontier
Deal found 6/7$88

One-way flights to Puerto Rico from Key Largo

Search for one-way flight options from Key Largo to Puerto Rico. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,022,473 searches. Data last updated June 8, 2024.
Users in need of a one-way flight from Key Largo to Puerto Rico can choose from these deals. For those needing a return trip from Key Largo, there is a search form available above.
Sat 9/1412:29 amMIA - SJU
Nonstop2h 43mFrontier
Deal found 6/7$31
Mon 7/812:29 amMIA - SJU
Nonstop2h 43mFrontier
Deal found 6/8$32
Mon 6/244:28 pmMIA - SJU
Nonstop2h 37mSpirit Airlines
Deal found 6/7$37
Mon 7/112:29 amMIA - SJU
Nonstop2h 39mFrontier
Deal found 6/7$38
Tue 7/1612:29 amMIA - SJU
Nonstop2h 43mFrontier
Deal found 6/7$39
Tue 7/3012:29 amMIA - SJU
Nonstop2h 43mFrontier
Deal found 6/7$40
Mon 7/812:29 amMIA - SJU
Nonstop2h 43mFrontier
Deal found 6/7$41
Mon 7/112:29 amMIA - SJU
Nonstop2h 39mFrontier
Deal found 6/7$42
Thu 6/2012:29 amMIA - SJU
Nonstop2h 39mFrontier
Deal found 6/8$43

Find flights from Key Largo to Puerto Rico within your budget

Customize your flight search to find flights from Key Largo 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 3,022,473 searches. Data last updated June 8, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$72 - $88

Route

Depart

Return

Price

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Tue 6/18

Nonstop2h 39m

San Juan Luis Munoz Marin Intl

Wed 6/26

Nonstop2h 48m

$72

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Mon 7/1

Nonstop2h 39m

San Juan Luis Munoz Marin Intl

Fri 7/5

Nonstop2h 47m

$75

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Mon 6/24

Nonstop2h 39m

San Juan Luis Munoz Marin Intl

Wed 6/26

Nonstop2h 55m

$76

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Thu 6/20

Nonstop2h 39m

San Juan Luis Munoz Marin Intl

Tue 6/25

Nonstop2h 47m

$77

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Fri 6/21

Nonstop2h 39m

San Juan Luis Munoz Marin Intl

Wed 6/26

Nonstop2h 48m

$78

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Thu 10/3

Nonstop2h 43m

San Juan Luis Munoz Marin Intl

Tue 10/8

Nonstop2h 53m

$80

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Fri 6/21

Nonstop2h 39m

San Juan Luis Munoz Marin Intl

Wed 6/26

Nonstop2h 50m

$81

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Mon 7/8

Nonstop2h 43m

San Juan Luis Munoz Marin Intl

Tue 7/16

Nonstop2h 48m

$83

MiamiSan Juan Luis Munoz Marin Intl

MIA - SJU

MIASJU

Miami

Sat 6/22

Nonstop2h 37m

San Juan Luis Munoz Marin Intl

Mon 6/24

Nonstop2h 47m

$88

Flights are sorted by cheapest first

Deals found on 6/7

No data available for this route at this time. Please check back soon.

Best time to book a flight from Key Largo to Puerto Rico

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

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 June 8, 2024.
Peruse reviews from past customers who have flown with Spirit Airlines, Frontier and JetBlue from Key Largo to Puerto Rico to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,333 reviews

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.0
Very good
10,333 reviews
8.0
Very good
10,333 reviews

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.6
Good
4,300 reviews
8.0
Very good
10,333 reviews

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.4
Good
10,680 reviews
8.0
Very good
10,333 reviews

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.3
Good
14,186 reviews
8.0
Very good
10,333 reviews

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

6.4
Okay
8,558 reviews
8.0
Very good
10,333 reviews

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Key Largo to Puerto Rico for under $100 on Cheapflights?

    Yes, there are multiple flights from Key Largo to Puerto Rico for under $100. The cheapest flight booked recently is on Multiple Airlines for just $72, but on average you can expect to pay $84.

  • Are there nonstop flights from Key Largo to Puerto Rico for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from Key Largo to Puerto Rico under $100. A good price for a nonstop flight from Key Largo to Puerto Rico is less than $84.

  • Are there last-minute flights available from Key Largo to Puerto Rico for under $100?

    There are currently 20+ open flights from Key Largo to Puerto Rico within the next 7 days for less than $100.

  • What days are nonstop flights available from Key Largo to Puerto Rico?

    You can find nonstop flights on the following days: Monday.

  • How many flights depart from Key Largo to Puerto Rico on average per day?

    On average 1 flight departs from Key Largo to Puerto Rico per day.
    Early Morning (Midnight to 6am) - 100% of flight departures

  • How long is the flight from Key Largo to Puerto Rico?

    There are many flights that can get you from Key Largo to Puerto Rico in 2h 37m. Fly via Frontier or Spirit Airlines to get the fastest option. The distance from Key Largo to Puerto Rico is about 1051 mi. Generally, flights for this route are nonstop.

  • What are the most popular routes from Key Largo to Puerto Rico?

  • What are the most reliable airlines from Key Largo to Puerto Rico?

    Consider Qatar Airways (87%), Frontier (86%) or Atlas Air (83%) when booking your flight. These represent the most reliable airlines when flying from Key Largo to Puerto Rico.

  • What are the cheapest flights from Key Largo to Puerto Rico?

    The cheapest flight price from Key Largo to Puerto Rico is $39. On average you can expect to pay $545. The most popular route, (Miami - San Juan Luis Munoz Marin Intl), can usually be booked for $72.

  • What does MIA to SJU mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Miami Airport to San Juan Luis Munoz Marin Intl Airport flight would often be abbreviated as a MIA to SJU flight. Aguadilla Borinquen Airport (BQN), Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Key Largo to Puerto Rico that include extra baggage allowance?

    The amount of baggage you can bring on your Key Largo to Puerto Rico flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Key Largo to Puerto Rico with specific airlines?

    Yes, Cheapflights allows you to browse and filter Key Largo to Puerto Rico flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Key Largo to Puerto Rico?

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

  • Can I find deals for business class flights from Key Largo to Puerto Rico?

    Yes. Cheapflights offers flight deals from Key Largo 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.

  • Can I find deals for flights from Key Largo to Puerto Rico that allow pets onboard?

    Many airlines flying from Key Largo to Puerto Rico offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Key Largo to Puerto Rico?

    Yes, you can often find last-minute deals on Key Largo to Puerto Rico flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Key Largo to Puerto Rico flight deals updated?

    The Key Largo to Puerto Rico flight deals you see on this page were last updated on 6/8.

  • What are the most popular airlines that fly from Key Largo to Puerto Rico?

  • What is the cheapest month to book a flight from Key Largo to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Key Largo to Puerto Rico (average of $245). Flying from Key Largo to Puerto Rico in March is currently the most expensive (average of $338). 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 Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Key Largo to Puerto Rico

Discover the top 6 airlines that operate flights from Key Largo 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 3,022,473 searches. Data last updated June 8, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$155FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$65Average$214FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$93Average$288FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$219Average$393FlexibilityNo cancel feeOn-time71%
DeltaCheapest$271Average$381FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$341Average$535FlexibilityNo cancel feeOn-time69%

Search flights from Key Largo to Puerto Rico by cabin class

Find flights from Key Largo to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Key Largo to Puerto Rico

Find hourly flight availability from Key Largo to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 8, 2024.
3%of flight departuresEarly morningMidnight to 6 am
43%of flight departuresMorning6 am to noon
40%of flight departuresAfternoonNoon to 6 pm
14%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
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