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Costa Rica

$161+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Dec 14 — Dec 212
Sun 12/14
Sun 12/21
2 travelers, 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 14, 2025.

This Mytrip deal was found by Cheapflights users on 11/11. 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.
Mon 11/246:32 pmTYS - SJO
1 stop16h 47mMultiple Airlines
Mon 12/812:39 pmSJO - TYS
1 stop8h 10mMultiple Airlines
Deal found 11/11$339
This Mytrip deal was found by Cheapflights users on 11/13. 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.
Fri 11/145:45 amTYS - SJO
2 stops18h 55mMultiple Airlines
Fri 11/2111:24 amSJO - TYS
1 stop8h 21mMultiple Airlines
Deal found 11/13$491
This Delta deal was found by Cheapflights users on 11/13. 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.
Sun 11/303:53 pmTYS - SJO
1 stop7h 14mDelta
Wed 12/37:00 amSJO - TYS
1 stop8h 53mDelta
Deal found 11/13$512
This Avianca deal was found by Cheapflights users on 11/13. 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 11/157:20 pmTYS - SJO
2 stops17h 05mAvianca
Sun 11/167:50 pmSJO - TYS
2 stops13h 58mAvianca
Deal found 11/13$514
This Mytrip deal was found by Cheapflights users on 11/13. 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 11/152:25 pmTYS - SJO
2 stops22h 00mMultiple Airlines
Sun 11/161:30 pmSJO - TYS
1 stop8h 03mMultiple Airlines
Deal found 11/13$515
This Avianca deal was found by Cheapflights users on 11/13. 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 12/47:25 pmTYS - SJO
1 stop9h 25mMultiple Airlines
Sun 12/147:50 pmSJO - TYS
2 stops13h 58mMultiple Airlines
Deal found 11/13$521
This Priceline deal was found by Cheapflights users on 11/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/145:45 amTYS - SJO
2 stops18h 55mAvianca
Fri 11/215:00 amSJO - TYS
2 stops14h 20mAvianca
Deal found 11/13$523
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/411:00 amTYS - SJO
2 stops12h 28mAmerican Airlines
Sun 12/141:15 pmSJO - TYS
2 stops9h 42mAmerican Airlines
Deal found 11/12$539
This American Airlines deal was found by Cheapflights users on 11/13. 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 12/146:40 amTYS - LIR
1 stop6h 50mAmerican Airlines
Wed 12/173:20 pmLIR - TYS
1 stop7h 37mAmerican Airlines
Deal found 11/13$601
This American Airlines deal was found by Cheapflights users on 11/12. 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 11/236:00 amTYS - LIR
1 stop9h 13mAmerican Airlines
Tue 12/21:19 pmLIR - TYS
1 stop9h 40mAmerican Airlines
Deal found 11/12$839
This American Airlines deal was found by Cheapflights users on 11/12. 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 11/246:12 amTYS - LIR
2 stops9h 01mAmerican Airlines
Tue 12/23:18 pmLIR - TYS
2 stops19h 14mAmerican Airlines
Deal found 11/12$840
This American Airlines deal was found by Cheapflights users on 11/12. 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 11/228:04 pmTYS - LIR
2 stops17h 14mAmerican Airlines
Tue 12/23:18 pmLIR - TYS
2 stops17h 36mAmerican Airlines
Deal found 11/12$1,016

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 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$339
(Mytrip)

One-way from

$161
(Avianca)

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.
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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
Search Deals
One-way flight 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).
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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 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 14, 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 11/24

6:32 pm-10:19 am

1 stop16h 47m

San José Juan Santamaria Intl

Mon 12/8

12:39 pm-9:49 pm

1 stop8h 10m

$339

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 2/6

8:30 am-12:22 pm

1 stop28h 52m

San José Juan Santamaria Intl

Tue 2/10

1:30 pm-10:08 am

1 stop19h 38m

$390

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/12

8:30 am-12:22 pm

1 stop28h 52m

San José Juan Santamaria Intl

Thu 1/22

1:30 pm-1:40 pm

1 stop23h 10m

$390

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 2/18

3:52 pm-12:22 pm

1 stop21h 30m

San José Juan Santamaria Intl

Thu 2/26

5:00 am-10:07 pm

2 stops16h 07m

$392

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 2/4

4:47 pm-12:22 pm

1 stop20h 35m

San José Juan Santamaria Intl

Wed 2/11

1:30 pm-12:04 pm

1 stop21h 34m

$427

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 2/2

12:55 pm-11:37 am

1 stop23h 42m

San José Juan Santamaria Intl

Sun 2/8

1:30 pm-12:05 pm

2 stops21h 35m

$428

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 2/4

4:47 pm-12:22 pm

1 stop20h 35m

San José Juan Santamaria Intl

Thu 2/12

9:35 am-10:25 pm

2 stops11h 50m

$428

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Tue 2/3

2:25 pm-7:45 am

2 stops18h 20m

San José Juan Santamaria Intl

Sat 2/14

4:15 pm-10:49 am

2 stops17h 34m

$481

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

$541

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Mon 1/26

6:20 am-2:13 pm

1 stop8h 53m

Liberia

Mon 2/2

1:46 pm-10:54 pm

1 stop8h 08m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 17 results
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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 14, 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 14, 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
8,007 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

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
9,017 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

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
11,051 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

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 17h 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 1744 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 14, 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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