$320+ 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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Nov 30 — Dec 71
Round-trip
1 adult, Economy
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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
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Cheapest flights from Knoxville to Costa RicaExplore 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 31, 2026.
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 31, 2026.
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 11/306:00 am -
1 stop9h 20m
Sat 12/53:35 pm -
1 stop7h 30m
Deal found 10/28![American Airlines logo]()
$648
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Fri 12/117:35 pm -
1 stop19h 44m
Fri 12/183:35 pm -
1 stop8h 04m
Deal found 10/27![American Airlines logo]()
$746
This Trip.com deal was found by Cheapflights users on 10/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:00 am -
2 stops27h 50m
Sat 10/311:55 am -
2 stops16h 45m
Deal found 10/27![Multiple Airlines logo]()
$746
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/125:37 pm -
2 stops40h 18m
Fri 11/207:00 am -
1 stop25h 44m
Deal found 10/26![Multiple Airlines logo]()
$767
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/207:30 am -
1 stop8h 41m
Tue 12/15:53 pm -
2 stops19h 15m
Deal found 10/26![Multiple Airlines logo]()
$855
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 12/411:53 am -
1 stop9h 46m
Sat 12/1211:28 pm -
1 stop11h 11m
Deal found 10/30![United Airlines logo]()
$869
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/126:00 am -
1 stop9h 17m
Mon 11/161:33 pm -
1 stop9h 26m
Deal found 10/26![American Airlines logo]()
$875
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/289:04 pm -
1 stop17h 53m
Sun 1/1711:55 pm -
2 stops35h 15m
Deal found 10/27![Multiple Airlines logo]()
$884
This American Airlines deal was found by Cheapflights users on 10/28. 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 12/127:00 am -
2 stops14h 51m
Sat 12/1911:35 am -
2 stops11h 18m
Deal found 10/28![American Airlines logo]()
$886
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/206:42 pm -
1 stop18h 59m
Fri 12/251:56 pm -
1 stop23h 48m
Deal found 10/26![Multiple Airlines logo]()
$894
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/37:14 pm -
2 stops20h 03m
Tue 11/101:33 pm -
2 stops23h 32m
Deal found 10/27![American Airlines logo]()
$898
Best flights from Knoxville to Costa RicaDiscover 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 October 31, 2026.
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 October 31, 2026.
This American Airlines deal was found by Cheapflights users on 10/29. 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 11/306:00 am -
1 stop9h 20m
Sat 12/53:35 pm -
1 stop7h 30m
Deal found 10/29![American Airlines logo]()
$648
This United Airlines deal was found by Cheapflights users on 10/30. 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 2/96:55 am -
1 stop7h 15m
Tue 2/238:45 am -
1 stop12h 08m
Deal found 10/30![United Airlines logo]()
$677
This American Airlines deal was found by Cheapflights users on 10/26. 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 4/195:44 am -
1 stop9h 56m
Wed 4/282:40 pm -
1 stop7h 19m
Deal found 10/26![American Airlines logo]()
$729
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/147:10 pm -
2 stops18h 46m
Sun 1/248:45 am -
1 stop12h 14m
Deal found 10/27![United Airlines logo]()
$739
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 2/167:16 pm -
2 stops18h 13m
Wed 2/248:00 am -
2 stops12h 47m
Deal found 10/28![American Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 10/30. 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 2/1612:12 pm -
1 stop8h 41m
Wed 2/248:45 am -
1 stop12h 08m
Deal found 10/30![United Airlines logo]()
$799
This American Airlines deal was found by Cheapflights users on 10/25. 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 1/88:20 am -
1 stop12h 34m
Thu 1/146:30 am -
1 stop10h 45m
Deal found 10/25![American Airlines logo]()
$785
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 2/66:55 am -
1 stop12h 42m
Tue 2/95:20 pm -
1 stop17h 25m
Deal found 10/30![United Airlines logo]()
$838
Last-minute flights from Knoxville to Costa RicaDiscover last-minute flight deals from Knoxville to Costa Rica. Data last updated October 31, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Costa Rica. Data last updated October 31, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 10/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:00 am -
2 stops27h 50m
Sat 10/311:55 am -
2 stops16h 45m
Deal found 10/27![Multiple Airlines logo]()
$746
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/37:14 pm -
2 stops20h 03m
Tue 11/101:33 pm -
2 stops23h 32m
Deal found 10/27![American Airlines logo]()
$898
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:45 am -
1 stop8h 15m
Wed 11/118:45 am -
1 stop12h 12m
Deal found 10/28![United Airlines logo]()
$1,015
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/125:37 pm -
2 stops40h 18m
Fri 11/207:00 am -
1 stop25h 44m
Deal found 10/26![Multiple Airlines logo]()
$767
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/126:00 am -
1 stop9h 17m
Mon 11/161:33 pm -
1 stop9h 26m
Deal found 10/26![American Airlines logo]()
$875
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/207:30 am -
1 stop8h 41m
Tue 12/15:53 pm -
2 stops19h 15m
Deal found 10/26![Multiple Airlines logo]()
$855
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 11/2011:20 am -
1 stop9h 33m
Tue 12/111:28 pm -
1 stop11h 11m
Deal found 10/26![United Airlines logo]()
$1,003
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/255:30 am -
1 stop18h 19m
Mon 11/303:03 pm -
1 stop22h 01m
Deal found 10/26![American Airlines logo]()
$974
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Wed 11/251:55 pm -
2 stops23h 47m
Mon 11/3011:28 pm -
2 stops19h 19m
Deal found 10/26![United Airlines logo]()
$1,010
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 11/306:00 am -
1 stop9h 20m
Sat 12/53:35 pm -
1 stop7h 30m
Deal found 10/28![American Airlines logo]()
$648
One-way flights from Knoxville to Costa RicaSearch for one-way flight options from Knoxville to Costa Rica. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
Search for one-way flight options from Knoxville to Costa Rica. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/306:17 pm -
2 stops29h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$320
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Wed 12/305:30 am -
1 stop18h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![American Airlines logo]()
$386
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 October 31, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $601 (Southwest) |
One-way from | $320 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $704 |
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 7,457,451 searches. Data last updated October 31, 2026.
Use the filters below to find and compare flights from Knoxville to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Wed 12/30
6:17 pm-10:44 pm
2 stops29h 27m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$320
Quickest round-trip
KnoxvilleLiberia
TYS Knoxville McGhee Tyson - LIR Liberia
TYSLIR
Knoxville McGhee Tyson
Mon 11/30
6:00 am-2:20 pm
1 stop9h 20m
Liberia
Sat 12/5
3:35 pm-12:05 am
1 stop7h 30m
$648
KnoxvilleLiberia
TYS Knoxville McGhee Tyson - LIR Liberia
TYSLIR
Knoxville McGhee Tyson
Tue 2/9
6:55 am-1:10 pm
1 stop7h 15m
Liberia
Tue 2/23
8:45 am-9:53 pm
1 stop12h 08m
$677
KnoxvilleLiberia
TYS Knoxville McGhee Tyson - LIR Liberia
TYSLIR
Knoxville McGhee Tyson
Mon 4/19
5:44 am-1:40 pm
1 stop9h 56m
Liberia
Wed 4/28
2:40 pm-11:59 pm
1 stop7h 19m
$729
KnoxvilleLiberia
TYS Knoxville McGhee Tyson - LIR Liberia
TYSLIR
Knoxville McGhee Tyson
Thu 1/14
7:10 pm-12:56 pm
2 stops18h 46m
Liberia
Sun 1/24
8:45 am-9:59 pm
1 stop12h 14m
$739
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Tue 2/16
7:16 pm-12:29 pm
2 stops18h 13m
San José Juan Santamaria Intl
Wed 2/24
8:00 am-9:47 pm
2 stops12h 47m
$739
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Fri 1/8
8:20 am-7:54 pm
1 stop12h 34m
San José Juan Santamaria Intl
Thu 1/14
6:30 am-6:15 pm
1 stop10h 45m
$785
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Tue 2/16
12:12 pm-7:53 pm
1 stop8h 41m
San José Juan Santamaria Intl
Wed 2/24
8:45 am-9:53 pm
1 stop12h 08m
$799
KnoxvilleLiberia
TYS Knoxville McGhee Tyson - LIR Liberia
TYSLIR
Knoxville McGhee Tyson
Sat 2/6
6:55 am-6:37 pm
1 stop12h 42m
Liberia
Tue 2/9
5:20 pm-11:45 am
1 stop17h 25m
$838
Sorted by cheapest first
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.
TYS-LIR
TYS-SJO
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
TYS-CR0
TYS-LIR
TYS-SJO
What is the cheapest month to book a flight from Knoxville to Costa Rica?
Currently, February is the cheapest month in which you can book a flight from Knoxville to Costa Rica (average of $675). Flying from Knoxville to Costa Rica in November is currently the most expensive (average of $932). 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 October 31, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican 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.
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
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.
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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.
Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Knoxville to Costa Rica by cabin class
Find flights from Knoxville to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Knoxville and Costa Rica flights
Browse other Knoxville and Costa Rica flight options. Last updated on October 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated October 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$324 | Average$755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$500 | Average$749 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$618 | Average$783 | FlexibilityNo cancel fee | On-time69% |