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Luis Munoz Marin Intl

$41+ Cheap flights from Key Largo, FL to Luis Munoz Marin Intl (SJU)

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJU
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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The best prices from Key Largo to San Juan Luis Munoz Marin Intl are usually found in September or October, booked 51 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Key Largo to Luis Munoz Marin Intl

Keep the following information in mind while searching for Key Largo to Luis Munoz Marin Intl flight deals. Data was last updated February 22, 2025.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$83
(Cheapflightsfares)

One-way from

$41
(Expedia)

Popular in

December

Cheapest in

September

Average price

$170
Provider with most accurate pricing for Miami-San Juan flight deals.
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Provider most trusted by Cheapflights users for Miami-San Juan flights.
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From Key Largo to San Juan Luis Munoz Marin Intl
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One-way flight from Key Largo to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 20% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Key Largo to Luis Munoz Marin Intl

Cheapest flights from Key Largo to Luis Munoz Marin Intl
Explore the most affordable flight options available from Key Largo to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/21. 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.
Tue 3/117:10 amMIA - SJU
Nonstop2h 34mFrontier
Tue 3/189:35 pmSJU - MIA
Nonstop3h 03mFrontier
Deal found 2/21$83
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Wed 3/57:10 amMIA - SJU
Nonstop2h 34mMultiple Airlines
Tue 3/1112:49 pmSJU - MIA
Nonstop2h 48mMultiple Airlines
Deal found 2/21$86
This FlightHub deal was found by Cheapflights users on 2/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/31:25 pmMIA - SJU
Nonstop2h 36mSpirit Airlines
Thu 3/61:49 pmSJU - MIA
Nonstop2h 48mSpirit Airlines
Deal found 2/22$87
This Southwest deal was found by Cheapflights users on 2/21. 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.
Wed 5/712:45 pmMIA - SJU
1 stop9h 45mSouthwest
Tue 5/136:05 amSJU - MIA
1 stop10h 10mSouthwest
Deal found 2/21$175
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Fri 2/285:30 pmMIA - SJU
Nonstop2h 30mAmerican Airlines
Sun 3/26:00 amSJU - MIA
Nonstop2h 59mAmerican Airlines
Deal found 2/21$191

Find flights from Key Largo to Luis Munoz Marin Intl within your budget

Customize your flight search to find flights from Key Largo to Luis Munoz Marin Intl 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 February 22, 2025.

Fly from

Key Largo

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Tue 3/11

7:10 am-9:44 am

Nonstop2h 34m

San Juan Luis Munoz Marin Intl

Tue 3/18

9:35 pm-12:38 am

Nonstop3h 03m

$83

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 3/5

7:10 am-10:44 am

Nonstop2h 34m

San Juan Luis Munoz Marin Intl

Tue 3/11

12:49 pm-3:37 pm

Nonstop2h 48m

$86

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 3/3

1:25 pm-5:01 pm

Nonstop2h 36m

San Juan Luis Munoz Marin Intl

Thu 3/6

1:49 pm-3:37 pm

Nonstop2h 48m

$87

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 5/7

12:45 pm-10:30 pm

1 stop9h 45m

San Juan Luis Munoz Marin Intl

Tue 5/13

6:05 am-4:15 pm

1 stop10h 10m

$175

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Fri 2/28

5:30 pm-9:00 pm

Nonstop2h 30m

San Juan Luis Munoz Marin Intl

Sun 3/2

6:00 am-7:59 am

Nonstop2h 59m

$191

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 3/31

7:00 am-9:26 am

Nonstop2h 26m

$41

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 3/5

7:10 am-10:44 am

Nonstop2h 34m

$43

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Fri 3/7

9:00 pm-12:29 am

Nonstop2h 29m

$83

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 4/23

12:45 pm-10:30 pm

1 stop9h 45m

$88

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 3/26

4:47 pm-11:07 pm

1 stop6h 20m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 12 results
1
2

Best time to book a flight from Key Largo to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl

Get recent, data-driven insights about flights from Key Largo to Luis Munoz Marin Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Key Largo to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Luis Munoz Marin Intl. Price data was last updated on February 14, 2025.

Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Key Largo to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Key Largo to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Key Largo to San Juan Luis Munoz Marin Intl Airport in March is currently the most expensive (average of $363). 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 Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

When flying from Key Largo to San Juan Luis Munoz Marin Intl Airport, 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 Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Luis Munoz Marin Intl. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Key Largo to San Juan Luis Munoz Marin Intl Airport

Explore weekly flight availability from Key Largo to Luis Munoz Marin Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 22, 2025.

The most flights from KE9 to SJU are scheduled on a Monday (24 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (22 on average).

Rainfall in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport when rainfall is around 2.2 in.

Temperature in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, 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 Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated February 22, 2025.
Southwest
8.1
Very good
4,395 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.7

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,395 reviews
Southwest
8.1
Very good
4,395 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.7

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,395 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.7

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,068 reviews
Southwest
8.1
Very good
4,395 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.7

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,754 reviews
Southwest
8.1
Very good
4,395 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.7

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,395 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.7

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Luis Munoz Marin Intl. 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 Key Largo to San Juan Luis Munoz Marin Intl Airport one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $41. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from Key Largo to San Juan Luis Munoz Marin Intl Airport for a low price.

  • What are the most reliable airlines from Key Largo to San Juan Luis Munoz Marin Intl Airport?

    Before booking your flight to San Juan Luis Munoz Marin Intl Airport from Key Largo, check out the most reliable airlines to get you to your destination on time: Qatar Airways (91%), British Airways (79%), Iberia( 73%).

  • What are the cheapest flights from Key Largo to San Juan Luis Munoz Marin Intl Airport?

    Looking at all options, your cheapest flight can be booked for $38. While the most popular route (Miami - San Juan Luis Munoz Marin Intl) can be booked for $75 on average our data indicates $407 when flying from Key Largo to San Juan Luis Munoz Marin Intl Airport.

  • Can I find deals for flights from Key Largo to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Key Largo to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Key Largo to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Key Largo to Luis Munoz Marin Intl 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 Key Largo to San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Key Largo to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Key Largo to San Juan Luis Munoz Marin Intl Airport in March is currently the most expensive (average of $363). 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

Traveling to a place near Key Largo?

Book flights to Key Largo if you plan to visit one of these locations
Dorado
Fajardo
Luquillo
Rio Grande
Humacao
Bayamón

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Top 6 airlines flying from Key Largo to Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from Key Largo to Luis Munoz Marin Intl. 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$47Average$128FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$66Average$156FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$93Average$225FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$155Average$278FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$196Average$400FlexibilityNo cancel feeOn-time71%
DeltaCheapest$237Average$344FlexibilityNo cancel feeOn-timeN/A
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