HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Rica

$170+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
אוג' 24 — אוג' 311
א' 8/24
א' 8/31
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

Keep the following information in mind while searching for Knoxville to Costa Rica flight deals. Data was last updated אוגוסט 19, 2025.

Round-trip from

$288
(Kiwi.com)

One-way from

$170
(Mytrip)

Popular in

September

Cheapest in

August

Average price

$511
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. 2% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 אוגוסט 19, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
ד' 9/174:31 pmTYS - SJO
1 stop20h 43mMultiple Airlines
ד' 9/2412:19 pmSJO - TYS
1 stop20h 59mMultiple Airlines
Deal found 8/18$288
This Mytrip deal was found by Cheapflights users on 8/19. 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.
ה' 10/25:44 pmTYS - SJO
2 stops18h 43mMultiple Airlines
ה' 10/911:37 amSJO - TYS
3 stops28h 35mMultiple Airlines
Deal found 8/19$461
This Delta deal was found by Cheapflights users on 8/18. 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.
ג' 9/95:45 amTYS - SJO
1 stop8h 25mDelta
ד' 10/221:23 pmSJO - TYS
1 stop7h 44mDelta
Deal found 8/18$474
This American Airlines deal was found by Cheapflights users on 8/17. 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.
ד' 12/37:48 amTYS - SJO
2 stops12h 47mAmerican Airlines
ה' 12/1111:35 amSJO - TYS
1 stop10h 45mAmerican Airlines
Deal found 8/17$478
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
ה' 12/47:11 pmTYS - SJO
1 stop18h 03mMultiple Airlines
ד' 1/146:08 pmSJO - TYS
2 stops22h 45mMultiple Airlines
Deal found 8/19$481
This Delta deal was found by Cheapflights users on 8/18. 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.
ד' 10/15:45 amTYS - SJO
1 stop8h 23mDelta
ב' 10/61:23 pmSJO - TYS
1 stop8h 23mDelta
Deal found 8/18$492
This American Airlines deal was found by Cheapflights users on 8/17. 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.
ד' 10/17:18 amTYS - SJO
2 stops14h 24mAmerican Airlines
ב' 10/62:40 pmSJO - TYS
1 stop6h 59mAmerican Airlines
Deal found 8/17$496
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
ו' 12/55:34 pmTYS - SJO
1 stop18h 53mMultiple Airlines
ד' 1/146:08 pmSJO - TYS
2 stops22h 45mMultiple Airlines
Deal found 8/19$497
This American Airlines deal was found by Cheapflights users on 8/17. 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.
ש' 11/156:18 pmTYS - LIR
2 stops18h 58mAmerican Airlines
ש' 11/221:21 pmLIR - TYS
2 stops18h 13mAmerican Airlines
Deal found 8/17$541
This American Airlines deal was found by Cheapflights users on 8/18. 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.
ש' 10/256:11 pmTYS - LIR
2 stops20h 48mAmerican Airlines
ו' 10/3112:45 pmLIR - TYS
1 stop8h 54mAmerican Airlines
Deal found 8/18$553
This American Airlines deal was found by Cheapflights users on 8/18. 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.
ה' 10/28:31 pmTYS - LIR
2 stops18h 31mAmerican Airlines
ה' 10/91:59 pmLIR - TYS
2 stops17h 33mAmerican Airlines
Deal found 8/18$589
This Delta deal was found by Cheapflights users on 8/17. 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.
ב' 8/255:45 amTYS - LIR
1 stop8h 15mDelta
ד' 8/271:25 pmLIR - TYS
1 stop8h 23mDelta
Deal found 8/17$777

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 אוגוסט 19, 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

ד' 9/17

4:31 pm-11:14 am

1 stop20h 43m

San José Juan Santamaria Intl

ד' 9/24

12:19 pm-11:18 am

1 stop20h 59m

$288

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

ש' 1/31

5:59 pm-12:21 am

1 stop7h 22m

San José Juan Santamaria Intl

ש' 2/7

12:22 pm-6:36 pm

1 stop29h 14m

$430

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

ה' 10/2

5:44 pm-10:27 am

2 stops18h 43m

San José Juan Santamaria Intl

ה' 10/9

11:37 am-6:12 pm

3 stops28h 35m

$461

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

ו' 12/12

5:56 pm-1:32 pm

2 stops20h 36m

San José Juan Santamaria Intl

ש' 12/20

5:10 pm-9:56 pm

1 stop27h 46m

$464

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

ג' 9/9

5:45 am-12:10 pm

1 stop8h 25m

San José Juan Santamaria Intl

ד' 10/22

1:23 pm-11:07 pm

1 stop7h 44m

$474

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

ד' 12/3

7:48 am-7:35 pm

2 stops12h 47m

San José Juan Santamaria Intl

ה' 12/11

11:35 am-11:20 pm

1 stop10h 45m

$478

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

ש' 11/15

6:18 pm-12:16 pm

2 stops18h 58m

Liberia

ש' 11/22

1:21 pm-8:34 am

2 stops18h 13m

$541

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

ש' 10/25

6:47 pm-11:45 am

2 stops18h 58m

Liberia

ו' 10/31

12:45 pm-12:27 pm

2 stops21h 42m

$553

KnoxvilleLiberia

TYS - LIR

TYSLIR

Knoxville McGhee Tyson

ה' 10/2

6:08 pm-11:49 am

2 stops19h 41m

Liberia

ה' 10/9

12:45 pm-11:39 pm

1 stop8h 54m

$589

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

ב' 9/15

5:27 pm-3:13 pm

2 stops23h 46m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 18 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, 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 $555). 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 אוגוסט 19, 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 אוגוסט 19, 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
7,981 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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
8,922 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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
7,981 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

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 18h 58m. 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 $555). 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 José flights
Nashville to Panama City flights
Nashville to Philip S.W.Goldson flights
Nashville to Guatemala City flights
Nashville to San Salvador flights
Nashville to Liberia flights
Memphis to San José flights
Knoxville to San José flights
Memphis to Philip S.W.Goldson flights
Memphis to Liberia flights
Memphis to Panama City flights
Knoxville to Panama City flights
Chattanooga to San José flights
Nashville to San Pedro Sula flights
Nashville to Managua flights
Blountville to San Salvador flights
Memphis to San Salvador flights
Knoxville to Liberia flights
Nashville to Coxen Hole flights
Memphis to Guatemala City flights
Chattanooga to Philip S.W.Goldson flights
Knoxville to Coxen Hole flights
Knoxville to Guatemala City flights
Knoxville to Managua flights
Blountville to San Pedro Sula flights
Blountville to San José flights
Memphis to San Pedro Sula flights
Knoxville to Philip S.W.Goldson flights
Blountville to Panama City flights
Chattanooga to San Salvador flights
Knoxville to San Salvador flights
Blountville to Managua flights
Nashville to Tegucigalpa 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 אוגוסט 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$456Average$703FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$473Average$633FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$570Average$765FlexibilityNo 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.