HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Rica

$184+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
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

Best flights from Knoxville to Costa Rica
Discover carefully curated flight deals from Knoxville to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

This Delta deal was found by Cheapflights users on 12/27. 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.
Mon 1/124:06 pmTYS - SJO
1 stop7h 09mDelta
Thu 1/227:00 amSJO - TYS
1 stop7h 19mDelta
Deal found 12/27$494
This American Airlines deal was found by Cheapflights users on 12/28. 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 2/114:41 pmTYS - SJO
1 stop8h 02mAmerican Airlines
Wed 2/182:55 pmSJO - TYS
1 stop8h 33mAmerican Airlines
Deal found 12/28$494
This Kiwi.com deal was found by Cheapflights users on 12/28. 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 3/126:30 amTYS - SJO
2 stops30h 55mMultiple Airlines
Wed 3/2512:31 pmSJO - TYS
1 stop21h 32mMultiple Airlines
Deal found 12/28$501
This United Airlines deal was found by Cheapflights users on 12/29. 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.
Mon 1/266:59 amTYS - SJO
1 stop7h 16mUnited Airlines
Mon 2/26:30 amSJO - TYS
1 stop16h 14mUnited Airlines
Deal found 12/29$512
This American Airlines deal was found by Cheapflights users on 12/27. 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 1/127:44 amTYS - SJO
2 stops13h 00mAmerican Airlines
Thu 1/228:00 amSJO - TYS
2 stops12h 44mAmerican Airlines
Deal found 12/27$499
This Delta deal was found by Cheapflights users on 12/29. 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.
Tue 3/108:55 amTYS - SJO
1 stop14h 20mDelta
Tue 3/177:00 amSJO - TYS
1 stop7h 06mDelta
Deal found 12/29$505
This Trip.com deal was found by Cheapflights users on 12/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/266:00 amTYS - SJO
2 stops18h 40mMultiple Airlines
Mon 2/24:15 pmSJO - TYS
2 stops17h 42mMultiple Airlines
Deal found 12/29$507
This American Airlines deal was found by Cheapflights users on 12/29. 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 1/266:20 amTYS - SJO
1 stop8h 34mAmerican Airlines
Mon 2/26:38 amSJO - TYS
1 stop15h 09mAmerican Airlines
Deal found 12/29$512
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 3/99:36 pmTYS - SJO
1 stop15h 46mMultiple Airlines
Thu 3/124:15 pmSJO - TYS
3 stops24h 12mMultiple Airlines
Deal found 12/29$519
This Delta deal was found by Cheapflights users on 12/28. 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.
Wed 3/185:01 pmTYS - SJO
1 stop6h 14mDelta
Wed 3/251:20 pmSJO - TYS
1 stop8h 31mDelta
Deal found 12/28$523
This American Airlines deal was found by Cheapflights users on 12/28. 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 3/76:21 pmTYS - LIR
2 stops17h 51mAmerican Airlines
Fri 3/1312:21 pmLIR - TYS
2 stops20h 59mAmerican Airlines
Deal found 12/28$559
This Delta deal was found by Cheapflights users on 12/29. 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.
Wed 1/287:00 amTYS - LIR
1 stop6h 50mDelta
Wed 2/42:05 pmLIR - TYS
1 stop8h 40mDelta
Deal found 12/29$601
This American Airlines deal was found by Cheapflights users on 12/29. 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 3/154:15 pmTYS - LIR
2 stops20h 57mAmerican Airlines
Sun 3/222:13 pmLIR - TYS
2 stops18h 58mAmerican Airlines
Deal found 12/29$584
This American Airlines deal was found by Cheapflights users on 12/29. 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 2/125:45 amTYS - LIR
1 stop9h 28mAmerican Airlines
Thu 2/191:45 pmLIR - TYS
1 stop9h 10mAmerican Airlines
Deal found 12/29$598
This American Airlines deal was found by Cheapflights users on 12/29. 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 1/286:00 amTYS - LIR
1 stop9h 20mAmerican Airlines
Wed 2/41:46 pmLIR - TYS
1 stop8h 08mAmerican Airlines
Deal found 12/29$601

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 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$342
(Kiwi.com)

One-way from

$184
(Trip.com)

Popular in

July

Cheapest in

August

Average price

$691
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, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 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 30, 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 1/12

4:06 pm-10:15 pm

1 stop7h 09m

San José Juan Santamaria Intl

Thu 1/22

7:00 am-3:19 pm

1 stop7h 19m

$494

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 2/11

4:41 pm-11:43 pm

1 stop8h 02m

San José Juan Santamaria Intl

Wed 2/18

2:55 pm-12:28 am

1 stop8h 33m

$494

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/12

7:44 am-7:44 pm

2 stops13h 00m

San José Juan Santamaria Intl

Thu 1/22

8:00 am-9:44 pm

2 stops12h 44m

$499

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Thu 3/12

6:30 am-11:25 am

2 stops30h 55m

San José Juan Santamaria Intl

Wed 3/25

12:31 pm-12:03 pm

1 stop21h 32m

$501

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Tue 3/10

8:55 am-9:15 pm

1 stop14h 20m

San José Juan Santamaria Intl

Tue 3/17

7:00 am-4:06 pm

1 stop7h 06m

$505

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/26

6:00 am-11:40 pm

2 stops18h 40m

San José Juan Santamaria Intl

Mon 2/2

4:15 pm-10:57 am

2 stops17h 42m

$507

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/26

6:59 am-1:15 pm

1 stop7h 16m

San José Juan Santamaria Intl

Mon 2/2

6:30 am-11:44 pm

1 stop16h 14m

$512

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/26

6:20 am-1:54 pm

1 stop8h 34m

San José Juan Santamaria Intl

Mon 2/2

6:38 am-10:47 pm

1 stop15h 09m

$512

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 3/9

9:36 pm-11:22 am

1 stop15h 46m

San José Juan Santamaria Intl

Thu 3/12

4:15 pm-6:27 pm

3 stops24h 12m

$519

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Wed 3/18

5:01 pm-9:15 pm

1 stop6h 14m

San José Juan Santamaria Intl

Wed 3/25

1:20 pm-11:51 pm

1 stop8h 31m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

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, 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.

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 30, 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
8,017 reviews

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.2

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
8,017 reviews
Delta
7.9
Good
8,017 reviews

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.2

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
9,121 reviews
Delta
7.9
Good
8,017 reviews

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.2

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
11,073 reviews
Delta
7.9
Good
8,017 reviews

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.2

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 Delta and American Airlines fly from Knoxville to Costa Rica in about 7h 09m. The time it takes to get you to your destination can typically vary by up to 53m. The distance from Knoxville to Costa Rica is about 1782 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

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 Liberia flights
Nashville to Philip S.W.Goldson flights
Memphis to San José flights
Nashville to Panama City flights
Memphis to Guatemala City flights
Nashville to San Salvador flights
Nashville to Guatemala City flights
Knoxville to San José flights
Memphis to Philip S.W.Goldson flights
Memphis to Liberia flights
Memphis to San Pedro Sula flights
Memphis to Panama City flights
Knoxville to Liberia flights
Knoxville to Philip S.W.Goldson flights
Nashville to Coxen Hole flights
Nashville to San Pedro Sula flights
Memphis to San Salvador flights
Knoxville to Managua flights
Knoxville to Panama City flights
Knoxville to Guatemala City flights
Blountville to Panama City flights
Nashville to Managua flights
Chattanooga to San José flights
Chattanooga to Philip S.W.Goldson flights
Knoxville to Coxen Hole flights
Blountville to San Pedro Sula flights
Knoxville to San Salvador flights
Blountville to San José flights
Blountville to San Salvador flights
Chattanooga 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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$456Average$648FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$466Average$633FlexibilityNo 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.