HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Rica

$285+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Costa Rica with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Fri 12/121:05 pmTYS - SJO
1 stop23h 37mMultiple Airlines
Fri 12/191:31 pmSJO - TYS
1 stop30h 02mMultiple Airlines
Deal found 12/7$503
This American Airlines deal was found by Cheapflights users on 12/7. 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.
Fri 12/127:38 amTYS - SJO
2 stops14h 11mAmerican Airlines
Fri 12/1911:32 amSJO - TYS
1 stop12h 06mAmerican Airlines
Deal found 12/7$546
This Kiwi.com deal was found by Cheapflights users on 12/6. 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.
Wed 12/1012:53 pmTYS - SJO
2 stops23h 49mMultiple Airlines
Fri 12/121:31 pmSJO - TYS
1 stop21h 32mMultiple Airlines
Deal found 12/6$606
This Kiwi.com deal was found by Cheapflights users on 12/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:31 pmTYS - SJO
1 stop19h 54mMultiple Airlines
Sun 12/281:31 pmSJO - TYS
1 stop8h 24mMultiple Airlines
Deal found 12/5$641
This Kiwi.com deal was found by Cheapflights users on 12/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:31 pmTYS - SJO
1 stop19h 54mMultiple Airlines
Tue 12/306:00 amSJO - TYS
2 stops16h 32mMultiple Airlines
Deal found 12/5$652
This Kiwi.com deal was found by Cheapflights users on 12/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:31 pmTYS - SJO
1 stop19h 54mMultiple Airlines
Mon 12/299:35 amSJO - TYS
2 stops21h 43mMultiple Airlines
Deal found 12/5$658
This Kiwi.com deal was found by Cheapflights users on 12/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:31 pmTYS - SJO
2 stops19h 11mMultiple Airlines
Thu 1/11:31 pmSJO - TYS
1 stop18h 02mMultiple Airlines
Deal found 12/5$690
This Delta deal was found by Cheapflights users on 12/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:35 amTYS - SJO
1 stop14h 45mDelta
Mon 12/297:00 amSJO - TYS
1 stop7h 51mDelta
Deal found 12/5$693
This Kiwi.com deal was found by Cheapflights users on 12/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:38 pmTYS - SJO
1 stop19h 04mMultiple Airlines
Sun 12/281:31 pmSJO - TYS
1 stop8h 24mMultiple Airlines
Deal found 12/5$715
This United Airlines deal was found by Cheapflights users on 12/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:10 amTYS - LIR
1 stop10h 27mUnited Airlines
Sat 12/138:35 amLIR - TYS
1 stop10h 19mUnited Airlines
Deal found 12/5$1,018
This American Airlines deal was found by Cheapflights users on 12/6. 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 stop9h 58mAmerican Airlines
Fri 1/211:55 amLIR - TYS
2 stops20h 01mAmerican Airlines
Deal found 12/6$1,067
This United Airlines deal was found by Cheapflights users on 12/6. 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.
Tue 12/239:05 amTYS - LIR
1 stop10h 32mUnited Airlines
Fri 1/28:35 amLIR - TYS
1 stop14h 07mUnited Airlines
Deal found 12/6$1,155

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 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$408
(Kiwi.com)

One-way from

$285
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$736
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
One-way flight from Knoxville McGhee Tyson to Costa Rica
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 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

Thu 1/8

1:39 pm-3:50 am

1 stop15h 11m

San José Juan Santamaria Intl

Wed 1/14

1:30 pm-8:39 am

1 stop18h 09m

$408

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

Mon 1/12

11:19 am-9:02 pm

2 stops10h 43m

San José Juan Santamaria Intl

Thu 1/22

8:00 am-6:46 pm

2 stops9h 46m

$498

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 12/12

1:05 pm-11:42 am

1 stop23h 37m

San José Juan Santamaria Intl

Fri 12/19

1:31 pm-8:33 pm

1 stop30h 02m

$503

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 1/16

6:20 am-7:44 pm

1 stop14h 24m

San José Juan Santamaria Intl

Sat 1/24

8:00 am-11:59 pm

1 stop14h 59m

$530

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 2/20

5:35 am-10:43 pm

1 stop18h 08m

San José Juan Santamaria Intl

Sun 2/22

12:31 am-10:11 am

1 stop8h 40m

$530

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Sat 3/7

6:38 pm-11:37 am

2 stops17h 59m

Liberia

Fri 3/13

12:21 pm-8:42 am

2 stops18h 21m

$541

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 12/12

7:38 am-8:49 pm

2 stops14h 11m

San José Juan Santamaria Intl

Fri 12/19

11:32 am-12:38 am

1 stop12h 06m

$546

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Sat 3/7

6:38 pm-11:37 am

2 stops17h 59m

Liberia

Sun 3/15

2:28 pm-11:20 am

2 stops18h 52m

$566

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

Sun 2/15

5:35 am-2:25 pm

1 stop9h 50m

Liberia

Mon 2/23

3:18 pm-11:55 pm

1 stop7h 37m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

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 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 December 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
8,013 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

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
8,013 reviews
Delta
7.9
Good
8,013 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

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
9,076 reviews
Delta
7.9
Good
8,013 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

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
11,042 reviews
Delta
7.9
Good
8,013 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

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 59m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to San Salvador flights
Nashville to Panama City flights
Nashville to Liberia flights
Memphis to San José flights
Nashville to San José flights
Nashville to Philip S.W.Goldson flights
Nashville to Guatemala City flights
Memphis to Philip S.W.Goldson flights
Memphis to Panama City flights
Knoxville to San José flights
Memphis to Liberia flights
Memphis to San Salvador flights
Nashville to San Pedro Sula flights
Knoxville to Philip S.W.Goldson flights
Knoxville to Liberia flights
Memphis to Guatemala City flights
Knoxville to Panama City flights
Knoxville to Managua flights
Nashville to Managua flights
Knoxville to Guatemala City flights
Nashville to Coxen Hole flights
Knoxville to San Salvador flights
Memphis to San Pedro Sula flights
Chattanooga to San José flights
Chattanooga to Philip S.W.Goldson flights
Blountville to San Pedro Sula flights
Blountville to Panama City flights
Knoxville to Coxen Hole flights
Blountville to San José flights
Blountville to San Salvador flights
Blountville to Managua flights
Nashville to Tegucigalpa flights
Chattanooga to San Salvador flights

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 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$456Average$648FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$466Average$629FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$491Average$738FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.