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$381+ Cheap flights from Knoxville (TYS) to Costa Rica

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Dec 8 — Dec 151
Mon 12/8
Mon 12/15
1 adult, Economy
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Find 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 November 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/138:32 pmTYS - SJO
1 stop16h 10mMultiple Airlines
Sat 1/102:58 pmSJO - TYS
2 stops25h 55mMultiple Airlines
Deal found 11/7$381
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/145:42 pmTYS - SJO
1 stop19h 00mMultiple Airlines
Fri 1/92:58 pmSJO - TYS
2 stops19h 11mMultiple Airlines
Deal found 11/7$429
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 11/810:54 amTYS - SJO
1 stop26h 31mMultiple Airlines
Wed 11/121:30 pmSJO - TYS
1 stop18h 34mMultiple Airlines
Deal found 11/6$475
This American Airlines deal was found by Cheapflights users on 11/6. 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 12/55:24 amTYS - SJO
1 stop16h 47mAmerican Airlines
Wed 1/148:00 amSJO - TYS
1 stop14h 59mAmerican Airlines
Deal found 11/6$512
This American Airlines deal was found by Cheapflights users on 11/6. 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 12/35:03 pmTYS - SJO
1 stop21h 36mAmerican Airlines
Thu 12/116:20 amSJO - TYS
1 stop16h 30mAmerican Airlines
Deal found 11/6$523
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/44:22 pmTYS - SJO
1 stop7h 37mAmerican Airlines
Sun 12/146:20 amSJO - TYS
1 stop10h 09mAmerican Airlines
Deal found 11/5$535
This American Airlines deal was found by Cheapflights users on 11/7. 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 12/225:40 pmTYS - LIR
2 stops19h 32mAmerican Airlines
Mon 12/291:21 pmLIR - TYS
2 stops19h 06mAmerican Airlines
Deal found 11/7$776
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Sat 11/87:00 amTYS - LIR
1 stop7h 10mUnited Airlines
Wed 11/128:35 amLIR - TYS
1 stop8h 29mUnited Airlines
Deal found 11/6$884
This American Airlines deal was found by Cheapflights users on 11/6. 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 11/85:05 amTYS - LIR
2 stops8h 13mAmerican Airlines
Wed 11/123:13 pmLIR - TYS
1 stop7h 46mAmerican Airlines
Deal found 11/6$888
This American Airlines deal was found by Cheapflights users on 11/6. 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 12/235:15 amTYS - LIR
1 stop6h 29mAmerican Airlines
Fri 1/21:21 pmLIR - TYS
1 stop10h 17mAmerican Airlines
Deal found 11/6$1,613

Cheap 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 November 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$381
(Kiwi.com)

Popular in

July

Cheapest in

August

Average price

$530
Provider with most accurate pricing for Knoxville McGhee Tyson-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-San José Juan Santamaria Intl flights.
Search Deals
From Knoxville McGhee Tyson to Costa Rica
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 8, 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

Sat 12/13

8:32 pm-11:42 am

1 stop16h 10m

San José Juan Santamaria Intl

Sat 1/10

2:58 pm-5:53 pm

2 stops25h 55m

$381

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Sun 12/14

5:42 pm-11:42 am

1 stop19h 00m

San José Juan Santamaria Intl

Fri 1/9

2:58 pm-11:09 am

2 stops19h 11m

$429

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 3/18

12:17 pm-9:55 pm

1 stop11h 38m

San José Juan Santamaria Intl

Tue 3/24

12:01 am-11:21 am

1 stop9h 20m

$494

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/12

6:20 am-9:02 pm

1 stop15h 42m

San José Juan Santamaria Intl

Thu 1/22

6:38 am-5:42 pm

1 stop10h 04m

$494

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 4/17

5:56 am-1:09 pm

1 stop9h 13m

San José Juan Santamaria Intl

Fri 4/24

1:45 pm-11:47 pm

1 stop8h 02m

$512

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 12/5

5:24 am-9:11 pm

1 stop16h 47m

San José Juan Santamaria Intl

Wed 1/14

8:00 am-11:59 pm

1 stop14h 59m

$512

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Sat 3/7

6:37 pm-11:15 am

2 stops17h 38m

Liberia

Thu 3/12

1:59 pm-11:41 pm

1 stop7h 42m

$541

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Sat 3/7

6:37 pm-11:15 am

2 stops17h 38m

Liberia

Fri 3/13

12:55 pm-10:32 am

2 stops19h 37m

$573

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Mon 12/22

4:12 pm-10:44 am

2 stops19h 32m

Liberia

Mon 12/29

11:55 am-12:38 am

1 stop11h 43m

$776

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Fri 3/6

6:37 pm-12:27 pm

2 stops18h 50m

Liberia

Sat 3/14

2:55 pm-12:24 pm

2 stops19h 29m

$807

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Showing 1-10 of 11 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 November 8, 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 November 8, 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
8,003 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.2

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
8,003 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.2

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
9,009 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.2

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
11,044 reviews
Delta
7.9
Good
8,003 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.2

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 11h 38m. 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 November 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$456Average$648FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$484Average$629FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$491Average$743FlexibilityNo cancel feeOn-time69%

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