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Costa Rica

$253+ 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
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
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 October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/15. 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 10/239:15 pmTYS - SJO
2 stops15h 26mMultiple Airlines
Wed 10/2912:35 pmSJO - TYS
1 stop18h 33mMultiple Airlines
Deal found 10/15$345
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 11/146:42 pmTYS - SJO
2 stops41h 57mMultiple Airlines
Fri 11/2111:24 amSJO - TYS
1 stop9h 06mMultiple Airlines
Deal found 10/15$406
This Mytrip deal was found by Cheapflights users on 10/15. 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.
Thu 12/115:12 pmTYS - SJO
2 stops19h 30mMultiple Airlines
Mon 12/155:10 pmSJO - TYS
1 stop16h 38mMultiple Airlines
Deal found 10/15$452
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Sun 10/199:01 pmTYS - SJO
1 stop16h 29mMultiple Airlines
Tue 10/2112:35 pmSJO - TYS
1 stop25h 01mMultiple Airlines
Deal found 10/15$463
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Thu 11/2710:27 amTYS - SJO
1 stop24h 52mMultiple Airlines
Sun 11/3011:24 amSJO - TYS
1 stop27h 25mMultiple Airlines
Deal found 10/14$464
This American Airlines deal was found by Cheapflights users on 10/15. 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.
Wed 12/38:05 amTYS - SJO
2 stops13h 44mAmerican Airlines
Thu 12/117:00 amSJO - TYS
2 stops12h 48mAmerican Airlines
Deal found 10/15$498
This deal was found by Cheapflights users on 10/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/289:10 amTYS - LIR
1 stop10h 27mUnited Airlines
Tue 3/107:35 amLIR - TYS
1 stop10h 19mUnited Airlines
Deal found 10/14$708
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 10/256:11 pmTYS - LIR
2 stops20h 48mAmerican Airlines
Fri 10/3112:45 pmLIR - TYS
1 stop8h 54mAmerican Airlines
Deal found 10/16$743
This deal was found by Cheapflights users on 10/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:00 amTYS - LIR
1 stop7h 10mUnited Airlines
Tue 3/107:35 amLIR - TYS
1 stop8h 34mUnited Airlines
Deal found 10/14$851
This American Airlines deal was found by Cheapflights users on 10/15. 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 12/235:15 amTYS - LIR
1 stop7h 57mAmerican Airlines
Fri 1/21:21 pmLIR - TYS
2 stops18h 35mAmerican Airlines
Deal found 10/15$1,617

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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$406
(Kiwi.com)

One-way from

$253
(Kiwi.com)

Popular in

October

Cheapest in

August

Average price

$823
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
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 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

Thu 10/23

9:15 pm-10:41 am

2 stops15h 26m

San José Juan Santamaria Intl

Wed 10/29

12:35 pm-9:08 am

1 stop18h 33m

$345

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Thu 12/11

5:12 pm-11:42 am

2 stops19h 30m

San José Juan Santamaria Intl

Mon 12/15

5:10 pm-10:48 am

1 stop16h 38m

$452

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Thu 11/27

10:27 am-10:19 am

1 stop24h 52m

San José Juan Santamaria Intl

Sun 11/30

11:24 am-3:49 pm

1 stop27h 25m

$464

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 12/3

8:05 am-8:49 pm

2 stops13h 44m

San José Juan Santamaria Intl

Thu 12/11

7:00 am-8:48 pm

2 stops12h 48m

$498

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 12/5

6:00 am-8:49 pm

1 stop15h 49m

San José Juan Santamaria Intl

Wed 1/14

6:00 am-5:06 pm

1 stop10h 06m

$512

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Thu 10/23

6:11 pm-12:00 pm

2 stops19h 49m

San José Juan Santamaria Intl

Wed 10/29

6:44 am-10:09 pm

2 stops13h 25m

$516

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Fri 11/28

9:10 am-6:37 pm

1 stop10h 27m

Liberia

Tue 3/10

7:35 am-7:54 pm

1 stop10h 19m

$708

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Sat 10/25

6:11 pm-12:59 pm

2 stops20h 48m

Liberia

Fri 10/31

12:45 pm-11:45 am

2 stops21h 00m

$743

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Mon 12/1

7:00 am-1:10 pm

1 stop7h 10m

Liberia

Tue 3/10

7:35 am-6:09 pm

1 stop8h 34m

$851

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Tue 12/23

5:15 am-12:12 pm

1 stop7h 57m

Liberia

Fri 1/2

1:21 pm-8:56 am

2 stops18h 35m

$1,617

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 14 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 October 16, 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 34% 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 October 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
7,984 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,984 reviews
Delta
8.0
Very good
7,984 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
7,984 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,043 reviews
Delta
8.0
Very good
7,984 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 and United Airlines fly from Knoxville to Costa Rica in about 10h 27m. The time it takes to get you to your destination can typically vary by up to 3h 17m. The distance from Knoxville to Costa Rica is about 1744 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 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 October 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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