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$48+ Cheap flights from Key Largo, FL 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJU
Dec 26 — Jan 21
Thu 12/26
Thu 1/2
1 adult, Economy
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Cheap flight deals from Key Largo to Puerto Rico

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to Puerto Rico (PR0). 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 December 21, 2024.

Round-trip from

$84
(FlightHub)

One-way from

$48
(Frontier)
From Key Largo to Puerto Rico
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One-way flight from Key Largo to Puerto Rico
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Find flight deals from Key Largo to Puerto Rico

Cheapest flights from Key Largo to Puerto Rico
Explore the most affordable flight options available from Key Largo to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2024.

This eDestinos deal was found by Cheapflights users on 12/20. 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 12/262:12 pmMIA - SJU
Nonstop2h 28mSpirit Airlines
Thu 1/306:55 pmSJU - MIA
Nonstop2h 54mSpirit Airlines
Deal found 12/20$168
This eDestinos deal was found by Cheapflights users on 12/20. 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 12/265:30 pmMIA - SJU
Nonstop2h 40mFrontier
Thu 1/306:00 amSJU - MIA
1 stop7h 41mFrontier
Deal found 12/20$187
This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Sat 12/282:12 pmMIA - SJU
Nonstop2h 28mMultiple Airlines
Mon 12/308:41 amSJU - MIA
Nonstop2h 51mMultiple Airlines
Deal found 12/20$209
This United deal was found by Cheapflights users on 12/21. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/232:34 pmMIA - BQN
1 stop8h 23mUnited Airlines
Thu 1/91:09 amBQN - MIA
1 stop9h 03mUnited Airlines
Deal found 12/21$774
This JetBlue Airways deal was found by Cheapflights users on 12/21. 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 JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/231:38 pmMIA - BQN
1 stop10h 34mJetBlue
Fri 1/105:01 amBQN - MIA
1 stop9h 02mJetBlue
Deal found 12/21$965
This United deal was found by Cheapflights users on 12/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/247:00 pmMIA - VQS
2 stops15h 20mMultiple Airlines
Thu 12/2611:40 amVQS - MIA
2 stops13h 45mMultiple Airlines
Deal found 12/20$1,292

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 2,558,603 searches. Data last updated December 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 2/10

1:55 pm-5:31 pm

Nonstop2h 36m

San Juan Luis Munoz Marin Intl

Fri 2/14

10:35 pm-12:35 am

Nonstop3h 00m

$84

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 1/29

5:45 am-3:58 pm

1 stop9h 13m

San Juan Luis Munoz Marin Intl

Sun 2/2

6:55 pm-8:49 pm

Nonstop2h 54m

$86

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Mon 1/13

10:17 pm-1:57 am

Nonstop2h 40m

San Juan Luis Munoz Marin Intl

Sat 1/18

10:42 am-12:42 pm

Nonstop3h 00m

$89

MiamiSan Juan

MIA - SJU

MIASJU

Miami

Wed 1/29

8:15 pm-12:04 am

Nonstop2h 49m

San Juan Luis Munoz Marin Intl

Thu 1/30

7:45 am-9:45 am

Nonstop3h 00m

$153

MiamiAguadilla

MIA - BQN

MIABQN

Miami

Wed 1/22

1:30 pm-11:57 pm

1 stop9h 27m

Aguadilla Borinquen

Mon 1/27

1:09 am-9:12 am

1 stop9h 03m

$385

MiamiAguadilla

MIA - BQN

MIABQN

Miami

Fri 1/3

2:25 pm-2:43 am

2 stops11h 18m

Aguadilla Borinquen

Thu 1/9

3:51 am-9:45 pm

2 stops18h 54m

$713

MiamiAguadilla

MIA - BQN

MIABQN

Miami

Sat 2/1

1:59 pm-2:42 am

1 stop11h 43m

Aguadilla Borinquen

Sat 2/8

5:01 am-1:03 pm

1 stop9h 02m

$731

MiamiVieques

MIA - VQS

MIAVQS

Miami

Sat 1/4

5:45 am-9:30 am

3 stops26h 45m

Vieques

Wed 1/8

3:00 pm-8:28 pm

1 stop6h 28m

$756

MiamiCulebra

MIA - CPX

MIACPX

Miami

Sat 1/4

10:20 pm-5:21 pm

2 stops18h 01m

Culebra

Wed 1/8

3:05 pm-8:28 pm

1 stop6h 23m

$761

MiamiCulebra

MIA - CPX

MIACPX

Miami

Sat 1/4

7:00 pm-5:21 pm

2 stops21h 21m

Culebra

Wed 1/8

10:48 am-11:42 am

2 stops25h 54m

$2,259

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 22 results
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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.

Travel insights for flights from Key Largo to Puerto Rico

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

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 $254). Flying from Key Largo to Puerto Rico in March is currently the most expensive (average of $380). 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 PR?

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 December 21, 2024.

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.

Weekly flight availability from Key Largo to Puerto Rico

Explore weekly flight availability from Key Largo to Puerto Rico. 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 December 21, 2024.

The most flights from KE9 to PR0 are scheduled on a Thursday (23 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

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 December 21, 2024.
Peruse reviews from past customers who have flown with Spirit Airlines, American Airlines and Frontier 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.
Southwest
8.1
Very good
4,814 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,814 reviews
Southwest
8.1
Very good
4,814 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,597 reviews
Southwest
8.1
Very good
4,814 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,266 reviews
Southwest
8.1
Very good
4,814 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,035 reviews
Southwest
8.1
Very good
4,814 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,814 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.

  • What are the cheapest airlines to fly from Key Largo to Puerto Rico one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $48. However, be on the lookout for offers from Spirit Airlines and American Airlines, as they are both options that can get you from Key Largo to Puerto Rico for a low price.

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

    Most travelers choose Miami - San Juan Luis Munoz Marin Intl, Miami - Aguadilla Borinquen or Miami - Vieques when deciding on the best route from Key Largo to Puerto Rico.

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

    Consider Frontier (89%), British Airways (85%) or Iberia (84%) 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 $45. On average you can expect to pay $488. The most popular route, (Miami - San Juan Luis Munoz Marin Intl), can usually be booked for $79.

  • 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.

  • 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 $254). Flying from Key Largo to Puerto Rico in March is currently the most expensive (average of $380). 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.

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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.
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Top 7 airlines flying from Key Largo to Puerto Rico

Discover the top 7 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 2,558,603 searches. Data last updated December 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$47Average$139FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$72Average$162FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$96Average$260FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$155Average$298FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$201Average$403FlexibilityNo cancel feeOn-time71%
DeltaCheapest$302Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$414Average$729FlexibilityNo cancel feeOn-time69%
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