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Costa Rica

$335+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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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 September 16, 2025.

Round-trip from

$335
(Kiwi.com)

Popular in

September

Cheapest in

August

Average price

$830
From Knoxville McGhee Tyson to Costa Rica
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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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 September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/13:21 pmTYS - SJO
1 stop21h 06mMultiple Airlines
Mon 10/2012:35 pmSJO - TYS
1 stop19h 58mMultiple Airlines
Deal found 9/15$335
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 9/2912:45 pmTYS - SJO
2 stops24h 29mMultiple Airlines
Fri 10/3112:35 pmSJO - TYS
1 stop19h 28mMultiple Airlines
Deal found 9/15$338
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Thu 10/27:20 amTYS - SJO
2 stops29h 07mMultiple Airlines
Mon 10/2012:35 pmSJO - TYS
1 stop19h 58mMultiple Airlines
Deal found 9/15$348
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/610:46 amTYS - SJO
2 stops26h 44mMultiple Airlines
Mon 10/2012:35 pmSJO - TYS
1 stop19h 58mMultiple Airlines
Deal found 9/15$365
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/13:21 pmTYS - SJO
1 stop21h 06mMultiple Airlines
Fri 10/1712:35 pmSJO - TYS
1 stop19h 43mMultiple Airlines
Deal found 9/15$367
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/13:21 pmTYS - SJO
1 stop21h 06mMultiple Airlines
Sun 10/1912:35 pmSJO - TYS
2 stops32h 41mMultiple Airlines
Deal found 9/15$376
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Thu 10/29:25 pmTYS - SJO
2 stops15h 49mMultiple Airlines
Fri 10/1712:35 pmSJO - TYS
1 stop19h 43mMultiple Airlines
Deal found 9/15$380
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/13:21 pmTYS - SJO
1 stop21h 06mMultiple Airlines
Tue 10/2112:35 pmSJO - TYS
1 stop25h 01mMultiple Airlines
Deal found 9/15$383
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:21 pmTYS - SJO
1 stop21h 06mMultiple Airlines
Mon 10/1312:35 pmSJO - TYS
1 stop19h 58mMultiple Airlines
Deal found 9/14$384
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 10/296:15 amTYS - LIR
1 stop7h 30mAmerican Airlines
Wed 11/53:08 pmLIR - TYS
1 stop8h 00mAmerican Airlines
Deal found 9/13$578
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/255:35 pmTYS - LIR
2 stops20h 10mAmerican Airlines
Fri 10/3112:45 pmLIR - TYS
2 stops19h 28mAmerican Airlines
Deal found 9/14$605
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/25:43 pmTYS - LIR
2 stops20h 06mAmerican Airlines
Thu 10/912:45 pmLIR - TYS
2 stops18h 47mAmerican Airlines
Deal found 9/14$665

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 September 16, 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

Wed 10/1

3:21 pm-10:27 am

1 stop21h 06m

San José Juan Santamaria Intl

Mon 10/13

12:35 pm-10:33 am

1 stop19h 58m

$384

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 10/1

3:21 pm-10:27 am

1 stop21h 06m

San José Juan Santamaria Intl

Sun 10/12

12:35 pm-11:18 am

1 stop20h 43m

$395

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 9/29

5:27 pm-11:14 am

1 stop19h 47m

San José Juan Santamaria Intl

Fri 10/31

12:35 pm-10:03 am

1 stop19h 28m

$398

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Thu 10/2

9:15 pm-11:14 am

1 stop15h 59m

San José Juan Santamaria Intl

Sun 10/12

6:10 pm-11:16 pm

2 stops27h 06m

$423

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 10/6

5:31 pm-11:30 am

1 stop19h 59m

San José Juan Santamaria Intl

Sun 10/12

12:35 pm-11:18 am

1 stop20h 43m

$428

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Thu 10/2

5:44 pm-10:27 am

2 stops18h 43m

San José Juan Santamaria Intl

Mon 10/13

12:35 pm-10:33 am

1 stop19h 58m

$428

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 10/1

7:15 am-10:27 am

3 stops29h 12m

San José Juan Santamaria Intl

Mon 10/6

11:37 am-10:33 am

2 stops20h 56m

$431

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Tue 10/7

11:23 am-11:30 am

1 stop26h 07m

San José Juan Santamaria Intl

Fri 10/17

12:35 pm-7:50 am

2 stops17h 15m

$433

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 10/3

8:54 pm-11:14 am

1 stop16h 20m

San José Juan Santamaria Intl

Mon 10/13

12:35 pm-10:33 am

1 stop19h 58m

$437

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 10/3

8:54 pm-11:14 am

1 stop16h 20m

San José Juan Santamaria Intl

Sun 10/12

12:35 pm-11:18 am

1 stop20h 43m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 19 results
1
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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, September is the cheapest month in which you can book a flight from Knoxville to Costa Rica (average of $398). Flying from Knoxville to Costa Rica in March is currently the most expensive (average of $554). 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 September 16, 2025.

When flying from Knoxville 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.

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 September 16, 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
8.0
Very good
7,957 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 16h 56m. 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, September is the cheapest month in which you can book a flight from Knoxville to Costa Rica (average of $398). Flying from Knoxville to Costa Rica in March is currently the most expensive (average of $554). 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$463Average$659FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$484Average$631FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$491Average$765FlexibilityNo cancel feeOn-time69%

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