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Costa Rica

$216+ Cheap flights from Knoxville (TYS) 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Knoxville to Costa Rica

Cheapest flights from Knoxville to Costa Rica
Explore the most affordable flight options available from Knoxville to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This American Airlines deal was found by Cheapflights users on 12/14. 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 12/247:00 amTYS - SJO
2 stops14h 14mAmerican Airlines
Wed 12/316:20 amSJO - TYS
1 stop11h 11mAmerican Airlines
Deal found 12/14$708
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:23 amTYS - SJO
1 stop18h 22mAmerican Airlines
Sat 1/36:20 amSJO - TYS
1 stop17h 18mAmerican Airlines
Deal found 12/16$913
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:27 pmTYS - SJO
2 stops15h 15mMultiple Airlines
Sat 1/37:22 amSJO - TYS
2 stops23h 56mMultiple Airlines
Deal found 12/15$920
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:00 amTYS - SJO
1 stop6h 42mMultiple Airlines
Sun 1/49:35 amSJO - TYS
2 stops35h 13mMultiple Airlines
Deal found 12/15$1,002
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:23 amTYS - SJO
1 stop18h 22mAmerican Airlines
Sat 1/36:20 amSJO - TYS
1 stop17h 18mAmerican Airlines
Deal found 12/15$1,005
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.
Tue 12/236:45 amTYS - LIR
1 stop8h 55mUnited Airlines
Fri 1/28:35 amLIR - TYS
1 stop14h 07mUnited Airlines
Deal found 12/16$1,213
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:23 amTYS - LIR
1 stop8h 03mAmerican Airlines
Fri 1/21:28 pmLIR - TYS
1 stop9h 17mAmerican Airlines
Deal found 12/15$1,308

Find flight deals from Knoxville to Costa Rica

Keep the following information in mind while searching for Knoxville to Costa Rica flight deals. Data was last updated December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$484
(Avianca)

One-way from

$216
(Kiwi.com)

Popular in

July

Cheapest in

August

Average price

$644
Provider with most accurate pricing for Knoxville McGhee Tyson-San José Juan Santamaria Intl flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-San José Juan Santamaria Intl flights.
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From Knoxville McGhee Tyson to Costa Rica
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One-way flight from Knoxville McGhee Tyson to Costa Rica
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Highest demand for flights based on searches. 1% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville 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 December 17, 2025.
Use the filters below to find and compare flights from Knoxville to Costa Rica that are best for you.

Fly from

Knoxville

Fly to

Costa Rica

Route

Depart

Return

Price

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/12

7:20 pm-3:50 am

1 stop9h 30m

San José Juan Santamaria Intl

Thu 1/22

9:35 am-7:50 pm

2 stops9h 15m

$484

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 3/18

5:40 am-9:43 pm

1 stop18h 03m

San José Juan Santamaria Intl

Wed 3/25

12:46 pm-11:40 pm

1 stop8h 54m

$494

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/12

11:19 am-9:02 pm

2 stops10h 43m

San José Juan Santamaria Intl

Thu 1/22

8:00 am-9:21 pm

2 stops12h 21m

$498

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Sun 4/12

5:56 am-9:55 pm

1 stop17h 59m

San José Juan Santamaria Intl

Fri 4/17

11:59 pm-2:27 pm

2 stops12h 28m

$498

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 1/23

6:20 am-1:54 pm

1 stop8h 34m

San José Juan Santamaria Intl

Fri 1/30

8:00 am-5:06 pm

1 stop8h 06m

$512

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 2/20

11:16 am-8:58 pm

2 stops10h 42m

San José Juan Santamaria Intl

Mon 2/23

7:45 am-11:55 pm

1 stop15h 10m

$534

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 2/20

7:25 pm-8:40 am

2 stops14h 15m

San José Juan Santamaria Intl

Mon 2/23

4:15 pm-10:49 am

2 stops17h 34m

$544

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Sat 3/7

7:06 pm-11:13 am

1 stop17h 07m

Liberia

Fri 3/13

12:37 pm-11:40 pm

1 stop9h 03m

$555

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Sun 2/15

5:35 am-2:25 pm

1 stop9h 50m

Liberia

Mon 2/23

3:25 pm-10:11 am

1 stop17h 46m

$575

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Fri 3/6

6:38 pm-12:10 pm

2 stops18h 32m

Liberia

Tue 3/10

2:28 pm-10:10 am

2 stops17h 42m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 14 results
1
2

Best time to book a flight from Knoxville to Costa Rica

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

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

Currently, April is the cheapest month in which you can book a flight from Knoxville to Costa Rica (average of $86). Flying from Knoxville to Costa Rica in September is currently the most expensive (average of $489). 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 TYS to CR?

Find hourly flight availability from Knoxville 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 December 17, 2025.

One of the essential ways to save on airfare from Knoxville to Costa Rica is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 27% on airfare.

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 December 17, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Costa Rica to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Costa Rica. 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 from for flights from Knoxville to Costa Rica?

    Knoxville McGhee Tyson (TYS), located 11.3 mi from the city center, is the airport you fly out of when you book flights from Knoxville to Costa Rica.

  • How long is the flight from Knoxville to Costa Rica?

    Airlines like American Airlines fly from Knoxville to Costa Rica in about 18h 03m. The time it takes to get you to your destination can typically vary by up to . The distance from Knoxville to Costa Rica is about 1782 mi.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Knoxville to Costa Rica (average of $86). Flying from Knoxville to Costa Rica in September is currently the most expensive (average of $489). 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

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Alternative routes for Knoxville to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Knoxville to Costa Rica

Discover the top 3 airlines that operate flights from Knoxville 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 December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$456Average$648FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$466Average$632FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$491Average$738FlexibilityNo cancel feeOn-time69%

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