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$123+ Cheap flights from Key Largo, FL to Costa Rica

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJO
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Key Largo to Costa Rica

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to Costa Rica (CR0). 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 January 21, 2025.

Round-trip from

$256
(Copa Airlines)

One-way from

$123
(Trip.com)
From Key Largo to Costa Rica
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One-way flight from Key Largo to Costa Rica
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Find flight deals from Key Largo to Costa Rica

Cheapest flights from Key Largo to Costa Rica
Explore the most affordable flight options available from Key Largo to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Copa Airlines deal was found by Cheapflights users on 1/21. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/128:32 amMIA - SJO
1 stop6h 24mCopa Airlines
Tue 3/183:06 pmSJO - MIA
1 stop5h 31mCopa Airlines
Deal found 1/21$256
This Avianca deal was found by Cheapflights users on 1/21. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/122:55 pmMIA - SJO
1 stop5h 50mAvianca
Fri 5/25:05 amSJO - MIA
2 stops8h 00mAvianca
Deal found 1/21$258
This Booking.com deal was found by Cheapflights users on 1/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/39:40 pmMIA - SJO
Nonstop3h 00mMultiple Airlines
Tue 9/93:31 pmSJO - MIA
1 stop18h 15mMultiple Airlines
Deal found 1/19$267
This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/11:25 pmMIA - SJO
2 stops23h 55mSpirit Airlines
Mon 3/1012:50 amSJO - MIA
2 stops15h 25mSpirit Airlines
Deal found 1/21$269
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Thu 3/67:03 pmMIA - SJO
Nonstop3h 05mAmerican Airlines
Wed 3/126:05 amSJO - MIA
Nonstop3h 00mAmerican Airlines
Deal found 1/21$273
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1210:25 amMIA - LIR
Nonstop3h 15mAmerican Airlines
Wed 3/192:11 pmLIR - MIA
Nonstop3h 00mAmerican Airlines
Deal found 1/20$560
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:00 amMIA - LIR
1 stop6h 41mDelta
Thu 8/211:04 pmLIR - MIA
1 stop9h 56mDelta
Deal found 1/20$565
This United Airlines deal was found by Cheapflights users on 1/20. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/126:19 amMIA - LIR
1 stop7h 49mUnited Airlines
Wed 3/197:50 amLIR - MIA
1 stop12h 44mUnited Airlines
Deal found 1/20$575
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/112:05 pmMIA - LIR
2 stops25h 55mMultiple Airlines
Mon 3/106:40 pmLIR - MIA
3 stops27h 16mMultiple Airlines
Deal found 1/20$587
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/257:52 pmMIA - LIR
2 stops35h 48mAlaska Airlines
Mon 3/38:00 amLIR - MIA
2 stops33h 47mAlaska Airlines
Deal found 1/21$647
This Air Canada deal was found by Cheapflights users on 1/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/211:55 pmMIA - LIR
1 stop24h 50mAir Canada
Thu 1/302:45 pmLIR - MIA
1 stop30h 52mAir Canada
Deal found 1/21$707
This Kissandfly.com deal was found by Cheapflights users on 1/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/66:19 amMIA - LIR
1 stop13h 11mLufthansa
Thu 3/137:50 amLIR - MIA
1 stop12h 44mLufthansa
Deal found 1/20$731

Find flights from Key Largo to Costa Rica within your budget

Customize your flight search to find flights from Key Largo to Costa Rica 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiSan José

MIA - SJO

MIASJO

Miami

Thu 3/13

2:28 pm-6:51 pm

1 stop6h 23m

San José Juan Santamaria Intl

Wed 3/19

6:06 pm-1:40 am

1 stop5h 34m

$256

MiamiSan José

MIA - SJO

MIASJO

Miami

Sat 4/12

2:55 pm-6:45 pm

1 stop5h 50m

San José Juan Santamaria Intl

Fri 5/2

5:05 am-3:05 pm

2 stops8h 00m

$258

MiamiSan José

MIA - SJO

MIASJO

Miami

Sat 3/1

1:25 pm-12:20 pm

2 stops23h 55m

San José Juan Santamaria Intl

Mon 3/10

12:50 am-6:15 pm

2 stops15h 25m

$269

MiamiSan José

MIA - SJO

MIASJO

Miami

Wed 3/5

9:28 am-11:19 am

2 stops26h 51m

San José Juan Santamaria Intl

Mon 3/10

5:05 am-12:20 pm

1 stop5h 15m

$272

MiamiSan José

MIA - SJO

MIASJO

Miami

Thu 3/6

7:03 pm-9:08 pm

Nonstop3h 05m

San José Juan Santamaria Intl

Thu 3/13

6:05 am-11:05 am

Nonstop3h 00m

$273

MiamiLiberia

MIA - LIR

MIALIR

Miami

Wed 3/12

10:25 am-11:40 am

Nonstop3h 15m

Liberia

Wed 3/19

12:53 pm-5:53 pm

Nonstop3h 00m

$560

MiamiLiberia

MIA - LIR

MIALIR

Miami

Wed 3/26

7:10 am-1:20 pm

1 stop8h 10m

Liberia

Wed 4/2

1:06 pm-12:45 am

1 stop9h 39m

$569

MiamiLiberia

MIA - LIR

MIALIR

Miami

Wed 3/12

6:19 am-12:08 pm

1 stop7h 49m

Liberia

Wed 3/19

7:50 am-10:34 pm

1 stop12h 44m

$575

MiamiLiberia

MIA - LIR

MIALIR

Miami

Tue 2/11

2:05 pm-3:00 pm

2 stops25h 55m

Liberia

Mon 3/10

6:40 pm-11:56 pm

3 stops27h 16m

$587

MiamiLiberia

MIA - LIR

MIALIR

Miami

Tue 2/25

7:52 pm-6:40 am

2 stops35h 48m

Liberia

Mon 3/3

8:00 am-6:47 pm

2 stops33h 47m

$647

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 38 results
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Best time to book a flight from Key Largo to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica 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 Costa Rica

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

What is the cheapest month to book a flight from Key Largo to Costa Rica?

Currently, September is the cheapest month in which you can book a flight from Key Largo to Costa Rica (average of $398). Flying from Key Largo to Costa Rica in March is currently the most expensive (average of $555). 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 CR?

Find hourly flight availability from Key Largo to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

When flying from Key Largo to Costa Rica, 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 Costa Rica?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Costa Rica. Price data was last updated on October 20, 2024.

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

Weekly flight availability from Key Largo to Costa Rica

Explore weekly flight availability from Key Largo to Costa Rica. 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 January 21, 2025.

The most flights from KE9 to CR0 are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. 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 Costa Rica. Reviews last updated January 21, 2025.
Get a feel of what it's like to fly with Copa Airlines, Spirit Airlines and Avianca from Key Largo to Costa Rica by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Japan Airlines
8.3
Very good
1,449 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Southwest
8.1
Very good
4,662 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Delta
8.0
Very good
8,521 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Alaska Airlines
8.0
Very good
9,706 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Copa Airlines
7.7
Good
1,662 reviews
Japan Airlines
8.3
Very good
1,449 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Related info for your journey

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

  • How popular is this Key Largo to Costa Rica flight route?

    The Key Largo to Costa Rica flight path was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Key Largo to Costa Rica one-way?

    One-way options have recently been found by users for as low as $123 on Avianca. Other airlines that offer cheap prices include American Airlines from $131 and Copa Airlines from $132 one-way.

  • What are the most reliable airlines from Key Largo to Costa Rica?

    Consider Iberia (79%), American Airlines (78%) or British Airways (77%) when booking your flight. These represent the most reliable airlines when flying from Key Largo to Costa Rica.

  • What are the cheapest flights from Key Largo to Costa Rica?

    While on average a flight from Key Largo to Costa Rica is generally $605, our data shows the cheapest flight currently is $145. When looking at the most popular route, (Miami - San José Juan Santamaria Intl), you can expect to pay $226 for that flight.

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

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

  • How can I find direct flights from Key Largo to Costa Rica?

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

  • Can I find deals for business class flights from Key Largo to Costa Rica?

    Yes. Cheapflights offers flight deals from Key Largo to Costa Rica 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 Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Key Largo to Costa Rica (average of $398). Flying from Key Largo to Costa Rica in March is currently the most expensive (average of $555). 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 Costa Rica

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 Costa Rica

Discover the top 7 airlines that operate flights from Key Largo to Costa Rica. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$153Average$262FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$199Average$359FlexibilityNo cancel feeOn-time62%
AviancaCheapest$211Average$309FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$228Average$345FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$286Average$656FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$443Average$610FlexibilityNo cancel feeOn-time69%
DeltaCheapest$486Average$712FlexibilityNo cancel feeOn-timeN/A
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