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Costa Rica

$142+ Cheap flights from Kentucky 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SJO
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheap flight deals from Kentucky to Costa Rica

Cheapest flights from Kentucky to Costa Rica
Explore the most affordable flight options available from Kentucky to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This American Airlines deal was found by Cheapflights users on 7/26. 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 10/156:00 am
BNA
-
SJO
1 stop9h 00m
American Airlines
Wed 10/216:00 am
SJO
-
BNA
1 stop14h 30m
American Airlines
Deal found 7/26$338
This American Airlines deal was found by Cheapflights users on 7/26. 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 10/86:01 am
BNA
-
SJO
2 stops15h 04m
American Airlines
Tue 10/136:00 am
SJO
-
BNA
2 stops14h 59m
American Airlines
Deal found 7/26$343
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/286:40 am
BNA
-
SJO
1 stop6h 46m
American Airlines
Fri 9/41:29 pm
SJO
-
BNA
1 stop23h 05m
American Airlines
Deal found 7/29$345
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 10/47:30 pm
BNA
-
SJO
1 stop19h 30m
American Airlines
Mon 10/121:00 pm
SJO
-
BNA
1 stop9h 24m
American Airlines
Deal found 7/30$346
This American Airlines deal was found by Cheapflights users on 7/26. 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 9/165:30 pm
BNA
-
SJO
1 stop19h 29m
American Airlines
Mon 9/211:00 pm
SJO
-
BNA
1 stop8h 29m
American Airlines
Deal found 7/26$347
This American Airlines deal was found by Cheapflights users on 7/27. 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 10/147:00 am
BNA
-
SJO
1 stop8h 00m
American Airlines
Sun 10/186:00 am
SJO
-
BNA
2 stops14h 04m
American Airlines
Deal found 7/27$348
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 10/106:06 pm
BNA
-
SJO
1 stop20h 54m
American Airlines
Thu 10/156:00 am
SJO
-
BNA
2 stops16h 32m
American Airlines
Deal found 7/30$350
This American Airlines deal was found by Cheapflights users on 7/27. 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 10/307:31 pm
BNA
-
SJO
1 stop19h 29m
American Airlines
Sun 11/12:07 pm
SJO
-
BNA
1 stop9h 44m
American Airlines
Deal found 7/27$351
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Sun 10/47:30 pm
BNA
-
SJO
1 stop19h 30m
American Airlines
Sat 10/101:00 pm
SJO
-
BNA
1 stop19h 18m
American Airlines
Deal found 7/26$353
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 9/156:30 am
BNA
-
SJO
1 stop6h 51m
United Airlines
Mon 2/81:15 am
SJO
-
BNA
1 stop8h 07m
United Airlines
Deal found 7/30$365
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Sun 10/46:40 pm
BNA
-
LIR
2 stops18h 30m
United Airlines
Sat 10/101:03 pm
LIR
-
BNA
1 stop9h 11m
United Airlines
Deal found 7/28$374
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 10/266:00 am
BNA
-
LIR
1 stop8h 43m
American Airlines
Fri 10/302:18 pm
LIR
-
BNA
1 stop18h 00m
American Airlines
Deal found 7/30$388

Find flight deals from Kentucky to Costa Rica

Keep the following information in mind while searching for Kentucky to Costa Rica flight deals. Data was last updated July 30, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$338
(American Airlines)

One-way from

$142
(Delta)

Popular in

April

Cheapest in

February

Average price

$736
Provider with most accurate pricing for Louisville Intl-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-San José Juan Santamaria Intl flights.
Search Deals
From Kentucky to Costa Rica
Search Deals
One-way flight from Kentucky to Costa Rica
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky 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 July 30, 2026.
Use the filters below to find and compare flights from Kentucky to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NashvilleSan José

BNA - SJO

BNASJO

Nashville Intl

Thu 10/8

6:01 am-8:05 pm

2 stops15h 04m

San José Juan Santamaria Intl

Tue 10/13

1:00 pm-10:43 pm

1 stop8h 43m

$343

NashvilleSan José

BNA - SJO

BNASJO

Nashville Intl

Tue 9/22

10:15 am-6:45 pm

2 stops9h 30m

San José Juan Santamaria Intl

Tue 9/29

9:00 am-5:05 pm

1 stop7h 05m

$396

NashvilleLiberia

BNA - LIR

BNALIR

Nashville Intl

Mon 10/26

7:25 am-1:00 pm

1 stop6h 35m

Liberia

Fri 10/30

2:05 pm-10:22 pm

1 stop7h 17m

$407

NashvilleLiberia

BNA - LIR

BNALIR

Nashville Intl

Sat 10/10

7:59 pm-1:18 pm

2 stops18h 19m

Liberia

Sat 10/17

2:45 pm-8:40 am

2 stops16h 55m

$410

NashvilleSan José

BNA - SJO

BNASJO

Nashville Intl

Wed 8/26

10:44 am-7:37 pm

1 stop9h 53m

San José Juan Santamaria Intl

Wed 9/2

7:55 am-6:45 pm

1 stop9h 50m

$416
Quickest round-trip

NashvilleLiberia

BNA - LIR

BNALIR

Nashville Intl

Sun 9/13

7:00 am-11:57 am

1 stop5h 57m

Liberia

Sun 9/20

1:05 pm-9:53 pm

1 stop7h 48m

$416

NashvilleSan José

BNA - SJO

BNASJO

Nashville Intl

Thu 9/17

1:00 pm-6:45 pm

1 stop6h 45m

San José Juan Santamaria Intl

Wed 9/23

9:00 am-7:35 pm

1 stop9h 35m

$428

NashvilleSan José

BNA - SJO

BNASJO

Nashville Intl

Fri 9/18

11:45 am-6:45 pm

2 stops8h 00m

San José Juan Santamaria Intl

Wed 9/23

9:00 am-7:35 pm

1 stop9h 35m

$433

NashvilleLiberia

BNA - LIR

BNALIR

Nashville Intl

Fri 9/18

7:51 pm-1:18 pm

2 stops18h 27m

Liberia

Sat 9/26

2:47 pm-10:49 am

2 stops19h 02m

$438

NashvilleSan José

BNA - SJO

BNASJO

Nashville Intl

Mon 9/21

6:30 am-12:21 pm

1 stop6h 51m

San José Juan Santamaria Intl

Wed 9/30

7:55 am-11:14 pm

2 stops14h 19m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Kentucky to Costa Rica

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

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

Currently, September is the cheapest month in which you can book a flight from Kentucky to Costa Rica (average of $481). Flying from Kentucky to Costa Rica in July is currently the most expensive (average of $768). 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.

How far ahead should I book a flight from Kentucky to Costa Rica?

The best time to book flights from Kentucky to Costa Rica is 72 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.

Related info for your journey

Find useful and relevant information for your journey from Kentucky 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 long is the flight from Kentucky to Costa Rica?

    Airlines like American Airlines, Southwest, and JetBlue fly from Kentucky to Costa Rica in about 6h 35m. The time it takes to get you to your destination can typically vary by up to 8h 29m. Airlines will cover a distance of 1764 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kentucky 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 Kentucky to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Kentucky to Costa Rica (average of $481). Flying from Kentucky to Costa Rica in July is currently the most expensive (average of $768). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Kentucky to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Atlanta to Panama City flights
O'Hare Intl to Guatemala City flights
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San Francisco to San José flights
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Top 4 airlines flying from Kentucky to Costa Rica

Discover the top 4 airlines that operate flights from Kentucky 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 July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$295Average$674FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$371Average$570FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$371Average$641FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$549Average$736FlexibilityNo cancel feeOn-time63%

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