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$40+ Cheap flights from Key Largo, FL 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJU
Nov 10 — Nov 171
1 adult
Sun 11/10
Sun 11/17
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The best prices from Key Largo to San Juan are usually found in September or October, booked 38 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Key Largo to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 5, 2024.

Popular in

December

Cheapest in

September

Round-trip from

$72
(eDestinos)

One-way from

$40
(eDestinos)
High demand for flights, 25% potential price rise
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Best time to find cheap flights, 25% potential price drop
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From Key Largo to San Juan
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One-way flight from Key Largo to San Juan
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Find flight deals from Key Largo to San Juan

Cheapest flights from Key Largo to San Juan
Explore the most affordable flight options available from Key Largo to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2024.

This eDestinos deal was found by Cheapflights users on 11/4. 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.
Tue 11/193:21 pmMIA - SJU
Nonstop2h 33mSpirit Airlines
Thu 11/214:25 pmSJU - MIA
Nonstop2h 51mSpirit Airlines
Deal found 11/4$72
This eDestinos deal was found by Cheapflights users on 11/4. 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.
Thu 11/147:45 amMIA - SJU
Nonstop2h 38mFrontier
Tue 11/197:25 pmSJU - MIA
Nonstop2h 53mFrontier
Deal found 11/4$82
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2111:47 amMIA - SJU
Nonstop2h 33mMultiple Airlines
Thu 11/289:35 pmSJU - MIA
Nonstop2h 52mMultiple Airlines
Deal found 11/3$91

Find flights from Key Largo to San Juan within your budget

Customize your flight search to find flights from Key Largo 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 2,554,862 searches. Data last updated November 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Thu 11/14

3:21 pm-6:54 pm

Nonstop2h 33m

$40

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 11/11

5:45 am-9:24 am

Nonstop2h 39m

$41

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 12/3

6:15 am-3:15 pm

2 stops32h 00m

$121

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Sat 5/3

6:00 am-4:29 pm

1 stop10h 29m

$122

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 4/14

8:30 am-11:00 am

Nonstop2h 30m

$133

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 11/19

3:21 pm-6:54 pm

Nonstop2h 33m

San Juan Luis Munoz Marin Intl

Thu 11/21

4:25 pm-6:16 pm

Nonstop2h 51m

$72

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 12/3

8:28 pm-12:07 am

Nonstop2h 39m

San Juan Luis Munoz Marin Intl

Tue 12/10

5:25 pm-7:23 pm

Nonstop2h 58m

$82

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Thu 11/21

11:47 am-3:20 pm

Nonstop2h 33m

San Juan Luis Munoz Marin Intl

Fri 12/6

7:14 pm-9:12 pm

Nonstop2h 58m

$100

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 2/11

1:55 pm-5:30 pm

Nonstop2h 35m

San Juan Luis Munoz Marin Intl

Mon 2/24

6:29 pm-8:29 pm

Nonstop3h 00m

$215

Flights are sorted by cheapest first

Deals found on 11/4

Best time to book a flight from Key Largo to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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.

Travel insights for flights from Key Largo to San Juan

Get recent, data-driven insights about flights from Key Largo to San Juan including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Key Largo to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to San Juan. Price data was last updated on November 1, 2024.

The price you pay for your flight from Key Largo to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 38 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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What is the cheapest month to book a flight from Key Largo to San Juan?

Currently, September is the cheapest month in which you can book a flight from Key Largo to San Juan (average of $254). Flying from Key Largo to San Juan in March is currently the most expensive (average of $335). 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 SJU?

Find hourly flight availability from Key Largo to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2024.

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

What is the cheapest day to fly from Key Largo to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to San Juan. Price data was last updated on November 3, 2024.

Travelers seeking maximum savings on their Key Largo to San Juan flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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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 November 5, 2024.
Delta
8.0
Very good
8,830 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

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.

Delta
8.0
Very good
8,830 reviews
Delta
8.0
Very good
8,830 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

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.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,830 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

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.

Spirit Airlines
6.3
Okay
8,178 reviews
Delta
8.0
Very good
8,830 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

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.

Frontier
6.1
Okay
3,572 reviews
Delta
8.0
Very good
8,830 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

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 San Juan. 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 San Juan for under $100 on Cheapflights?

    Yes, there are multiple flights from Key Largo to San Juan for under $100. The cheapest flight booked recently is on Spirit Airlines for just $72, but on average you can expect to pay $117.

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

    Cheapflights has at least 4 direct flights from Key Largo to San Juan under $100. A good price for a nonstop flight from Key Largo to San Juan is less than $117.

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

    There are currently 4+ open flights from Key Largo to San Juan within the next 7 days for less than $100.

  • What are the cheapest airlines to fly from Key Largo 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 $40. Frontier flights start at $41 while deals on Delta start at $162 one-way.

  • What are the most reliable airlines from Key Largo to San Juan?

    The top 3 most reliable airlines when flying from Key Largo to San Juan are Envoy Air (100%), Frontier (91%) and Spirit Airlines (89%).

  • What are the cheapest flights from Key Largo to San Juan?

    Looking for the cheapest flight from Key Largo to San Juan? While on average our users pay $433, our data indicates the cheapest price to be $45. The most popular route (Miami - San Juan Luis Munoz Marin Intl), is priced around $67.

  • What does MIA to SJU mean?

    This is defined as Miami Airport (MIA) and San Juan Luis Munoz Marin Intl Airport (SJU). Codes like San Juan Luis Munoz Marin Intl Airport are often used to just call airports uniquely. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS), Ceiba J. Aponte de la Torre Airport (NRR).

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

    The amount of baggage you can bring on your Key Largo to San Juan 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 San Juan with specific airlines?

    Yes, Cheapflights allows you to browse and filter Key Largo to San Juan 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 San Juan that include hotel bookings?

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

  • How can I find direct flights from Key Largo to San Juan?

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

  • Can I find deals for business class flights from Key Largo to San Juan?

    Yes. Cheapflights offers flight deals from Key Largo 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.

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

    Many airlines flying from Key Largo to San Juan 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 San Juan?

    Yes, you can often find last-minute deals on Key Largo to San Juan 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 San Juan flight deals updated?

    The Key Largo to San Juan flight deals you see on this page were last updated on 11/4.

  • What is the cheapest month to book a flight from Key Largo to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Key Largo to San Juan (average of $254). Flying from Key Largo to San Juan in March is currently the most expensive (average of $335). 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 San Juan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Key Largo to San Juan

Discover the top 6 airlines that operate flights from Key Largo 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 2,554,862 searches. Data last updated November 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$50Average$141FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$82Average$173FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$110Average$270FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$155Average$225FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$214Average$412FlexibilityNo cancel feeOn-time71%
DeltaCheapest$261Average$366FlexibilityNo cancel feeOn-timeN/A
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