HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San José

$87+ Cheap flights from Key Largo, FL to San José (SJO)

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJO
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to San José with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Key Largo to San José Juan Santamaria Intl are usually found in August or September, booked 69 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Key Largo to San José

Cheapest flights from Key Largo to San José
Explore the most affordable flight options available from Key Largo to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Avianca deal was found by Cheapflights users on 12/15. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:25 pmMIA - SJO
Nonstop3h 05mAvianca
Tue 12/307:45 amSJO - MIA
Nonstop3h 05mAvianca
Deal found 12/15$234
This Avianca deal was found by Cheapflights users on 12/17. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:40 pmMIA - SJO
1 stop5h 15mAvianca
Sun 1/117:45 amSJO - MIA
Nonstop3h 05mAvianca
Deal found 12/17$235
This Super.com deal was found by Cheapflights users on 12/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:25 pmMIA - SJO
Nonstop3h 05mAvianca
Wed 12/317:45 amSJO - MIA
Nonstop3h 05mAvianca
Deal found 12/16$238
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/186:20 amMIA - SJO
1 stop7h 55mUnited Airlines
Mon 12/2212:35 pmSJO - MIA
1 stop21h 19mUnited Airlines
Deal found 12/16$242
This Avianca deal was found by Cheapflights users on 12/16. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:25 pmMIA - SJO
Nonstop3h 05mAvianca
Tue 1/137:45 amSJO - MIA
Nonstop3h 05mAvianca
Deal found 12/16$249
This Avianca deal was found by Cheapflights users on 12/17. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:40 pmMIA - SJO
1 stop5h 15mAvianca
Sun 1/117:45 amSJO - MIA
Nonstop3h 05mAvianca
Deal found 12/17$254
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Sun 12/281:25 pmMIA - SJO
Nonstop3h 05mAvianca
Tue 12/307:45 amSJO - MIA
Nonstop3h 05mAvianca
Deal found 12/17$261
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/251:25 pmMIA - SJO
Nonstop3h 05mAvianca
Mon 12/297:45 amSJO - MIA
Nonstop3h 05mAvianca
Deal found 12/17$262
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/251:25 pmMIA - SJO
Nonstop3h 05mAvianca
Sun 12/287:45 amSJO - MIA
Nonstop3h 05mAvianca
Deal found 12/16$266

Find flight deals from Key Largo to San José

Keep the following information in mind while searching for Key Largo to San José flight deals. Data was last updated December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$191
(CheapOair)

One-way from

$87
(Super.com)

Popular in

December

Cheapest in

August

Average price

$483
Provider with most accurate pricing for Miami-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-San José Juan Santamaria Intl flights.
Search Deals
From Key Largo to San José Juan Santamaria Intl
Search Deals
One-way flight from Key Largo to San José Juan Santamaria Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to San José 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 18, 2025.
Use the filters below to find and compare flights from Key Largo to San José that are best for you.

Fly from

Key Largo

Fly to

San José

Route

Depart

Return

Price

MiamiSan José

MIA - SJO

MIASJO

Miami

Mon 2/23

1:24 pm-3:17 pm

Nonstop2h 53m

San José Juan Santamaria Intl

Mon 3/2

5:00 am-3:20 pm

2 stops9h 20m

$201

MiamiSan José

MIA - SJO

MIASJO

Miami

Fri 1/16

1:25 pm-3:30 pm

Nonstop3h 05m

San José Juan Santamaria Intl

Mon 1/19

7:45 am-11:50 am

Nonstop3h 05m

$202

MiamiSan José

MIA - SJO

MIASJO

Miami

Fri 2/6

1:25 pm-3:30 pm

Nonstop3h 05m

San José Juan Santamaria Intl

Sun 2/8

7:45 am-11:50 am

Nonstop3h 05m

$202

MiamiSan José

MIA - SJO

MIASJO

Miami

Thu 1/15

7:05 am-1:40 pm

1 stop7h 35m

San José Juan Santamaria Intl

Thu 5/28

8:50 am-1:40 pm

Nonstop2h 50m

$203

MiamiSan José

MIA - SJO

MIASJO

Miami

Fri 1/30

1:25 pm-3:30 pm

Nonstop3h 05m

San José Juan Santamaria Intl

Mon 2/2

3:05 pm-9:15 pm

1 stop5h 10m

$203

MiamiSan José

MIA - SJO

MIASJO

Miami

Wed 1/14

1:25 pm-3:30 pm

Nonstop3h 05m

San José Juan Santamaria Intl

Wed 1/21

3:05 pm-9:15 pm

1 stop5h 10m

$204

MiamiSan José

MIA - SJO

MIASJO

Miami

Fri 2/6

2:40 pm-6:55 pm

1 stop5h 15m

San José Juan Santamaria Intl

Mon 2/9

5:00 am-3:20 pm

2 stops9h 20m

$205

MiamiSan José

MIA - SJO

MIASJO

Miami

Fri 3/6

4:50 pm-11:40 pm

2 stops7h 50m

San José Juan Santamaria Intl

Wed 3/18

5:00 am-12:15 pm

1 stop5h 15m

$205

MiamiSan José

MIA - SJO

MIASJO

Miami

Wed 4/29

9:40 pm-10:40 pm

Nonstop3h 00m

San José Juan Santamaria Intl

Sun 5/3

8:50 am-1:40 pm

Nonstop2h 50m

$233

MiamiSan José

MIA - SJO

MIASJO

Miami

Wed 1/7

5:20 am-1:48 pm

1 stop9h 28m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 20 results
1
2

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

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

Cheapflights Insights

Everything you need to know about your flight from Key Largo to San José

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to San José. Price data was last updated on December 12, 2025.

The best time to book flights from Key Largo to San José is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Key Largo to San José (average of $92). Flying from Key Largo to San José in February is currently the most expensive (average of $145). 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 SJO?

Find hourly flight availability from Key Largo to San José. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from Key Largo to San José, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 42% versus a flight at noon.

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

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

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

Reviews of airlines servicing San José

Get insights into the airlines that provide service to San José. 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 José. Reviews last updated December 18, 2025.
Read through reviews of airlines operating flights from Key Largo to San José, such as Copa Airlines, Volaris El Salvador, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,556 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Copa Airlines
7.6
Good
1,556 reviews
Copa Airlines
7.6
Good
1,556 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Volaris El Salvador
7.4
Good
Copa Airlines
7.6
Good
1,556 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
American Airlines
7.2
Good
11,054 reviews
Copa Airlines
7.6
Good
1,556 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Avianca
6.6
Okay
2,490 reviews
Copa Airlines
7.6
Good
1,556 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Spirit Airlines
6.3
Okay
8,189 reviews
Copa Airlines
7.6
Good
1,556 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

Related info for your journey

Find useful and relevant information for your journey from Key Largo to San José. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San José from Key Largo?

    Most people fly into San José Juan Santamaria Intl (SJO) if they book a flight to San José from Key Largo. On average, Juan Santamaria Intl has 4 inbound flights from Key Largo per day from 7 airlines. San José Juan Santamaria Intl is conveniently located just 8.8 mi from San José’s city center.

  • How popular is this Key Largo to San José flight route?

    Flights from Key Largo to San José Juan Santamaria Intl have been viewed 17 times in the past calendar month.

  • How long is the flight from Key Largo to San José?

    For as low as $202, Avianca can have you in San José from Key Largo in 3h 05m. Key Largo and San José are separated by a distance of 1121 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines to fly from Key Largo to San José one-way?

    The cheapest airlines for a one-way flight from Key Largo to San José are Volaris Costa Rica ($41), Spirit Airlines ($74), and JetBlue ($79).

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

    Before booking your flight to San José from Key Largo, check out the most reliable airlines to get you to your destination on time: Aserca Airlines (100%), Avianca (99%), Avianca Costa Rica( 99%).

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

    Looking for the cheapest flight from Key Largo to San José? While on average our users pay $665, our data indicates the cheapest price to be $43. The most popular route (Miami - San José Juan Santamaria Intl), is priced around $156.

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

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

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

    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 José.

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

    Yes. Cheapflights offers flight deals from Key Largo to San José 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 José?

    Currently, January is the cheapest month in which you can book a flight from Key Largo to San José (average of $92). Flying from Key Largo to San José in February is currently the most expensive (average of $145). 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 San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Alajuela
Monteverde
Jacó
Heredia
Dominical

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Key Largo to San José

See prices for flight routes from nearby airports that may be better suited for you.
Miami to San José flights
Orlando to San José flights
Fort Lauderdale to San José flights
Tampa to San José flights
Miami to Liberia flights
Orlando to Liberia flights
Tampa to Liberia flights
Jacksonville to San José flights
Fort Lauderdale to Liberia flights
West Palm Beach to San José flights
West Palm Beach to Liberia flights
Jacksonville to Liberia flights
Pensacola to San José flights
Sarasota to San José flights
Melbourne to San José flights
Fort Myers to San José flights
Daytona Beach to San José flights
Panama City to San José flights
Pensacola to Liberia flights
Fort Myers to Liberia flights
Tallahassee to San José flights
Sarasota to Liberia flights
Panama City to Liberia flights
Gainesville to San José flights
Orlando Sanford Intl to San José flights
Key West to San José flights
Daytona Beach to Liberia flights
Gainesville to Liberia flights
Valdosta to San José flights
Valparaiso to San José flights

Top 7 airlines flying from Key Largo to San José

Discover the top 7 airlines that operate flights from Key Largo to San José. 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 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$119Average$249FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$125Average$285FlexibilityNo cancel feeOn-time70%
Volaris Costa RicaCheapest$132Average$159FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$152Average$240FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$178Average$331FlexibilityNo cancel feeOn-time62%
Volaris El SalvadorCheapest$196Average$233FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$227Average$388FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.