$430+ Cheap flights from Costa Rica to Knoxville (TYS)
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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — TYS
Sep 1 — Sep 81
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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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 Costa Rica to Knoxville
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Best
Last-minute
One-way
Cheapest flights from Costa Rica to KnoxvilleExplore the most affordable flight options available from Costa Rica to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.
Explore the most affordable flight options available from Costa Rica to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/29:00 am
SJO
- TYS
2 stops11h 40m
Southwest
Fri 10/168:20 am
TYS
- SJO
2 stops13h 20m
Southwest
Deal found 7/28![Southwest logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:55 am
SJO
- TYS
2 stops21h 30m
Multiple Airlines
Mon 11/27:00 am
TYS
- SJO
1 stop9h 18m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 7/30. 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 11/102:25 pm
SJO
- TYS
2 stops23h 23m
United Airlines
Wed 11/189:58 am
TYS
- SJO
1 stop10h 55m
United Airlines
Deal found 7/30![United Airlines logo]()
$609
This American Airlines deal was found by Cheapflights users on 7/29. 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 10/281:00 pm
SJO
- TYS
1 stop8h 22m
American Airlines
Sat 11/77:16 pm
TYS
- SJO
1 stop20h 33m
American Airlines
Deal found 7/29![American Airlines logo]()
$629
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:00 am
SJO
- TYS
1 stop15h 24m
American Airlines
Sat 11/77:16 pm
TYS
- SJO
1 stop18h 45m
American Airlines
Deal found 7/30![American Airlines logo]()
$630
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 10/287:45 am
SJO
- TYS
2 stops14h 14m
United Airlines
Sat 11/75:15 pm
TYS
- SJO
1 stop21h 07m
United Airlines
Deal found 7/30![United Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:01 pm
SJO
- TYS
2 stops18h 04m
American Airlines
Sun 10/188:02 pm
TYS
- SJO
1 stop19h 58m
American Airlines
Deal found 7/30![American Airlines logo]()
$636
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 10/21:19 pm
SJO
- TYS
1 stop8h 36m
Delta
Fri 10/167:09 am
TYS
- SJO
1 stop6h 51m
Delta
Deal found 7/28![Delta logo]()
$640
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sat 8/299:25 am
SJO
- TYS
2 stops22h 39m
Multiple Airlines
Sun 9/64:49 pm
TYS
- SJO
1 stop24h 22m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$648
Best flights from Costa Rica to KnoxvilleDiscover carefully curated flight deals from Costa Rica to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
Discover carefully curated flight deals from Costa Rica to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
This American Airlines deal was found by Cheapflights users on 7/28. 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 10/281:00 pm
SJO
- TYS
1 stop8h 22m
American Airlines
Sat 11/77:16 pm
TYS
- SJO
1 stop20h 33m
American Airlines
Deal found 7/28![American Airlines logo]()
$630
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 10/287:45 am
SJO
- TYS
2 stops24h 08m
United Airlines
Sat 11/76:45 am
TYS
- SJO
2 stops14h 54m
United Airlines
Deal found 7/30![United Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 10/236:00 am
SJO
- TYS
2 stops15h 22m
American Airlines
Sat 11/77:16 pm
TYS
- SJO
1 stop20h 33m
American Airlines
Deal found 7/29![American Airlines logo]()
$634
This United Airlines deal was found by Cheapflights users on 7/30. 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 10/231:25 pm
SJO
- TYS
2 stops25h 43m
United Airlines
Sat 11/76:45 am
TYS
- SJO
2 stops14h 54m
United Airlines
Deal found 7/30![United Airlines logo]()
$649
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 10/257:45 am
SJO
- TYS
2 stops35h 09m
United Airlines
Sun 11/17:35 pm
TYS
- SJO
2 stops16h 50m
United Airlines
Deal found 7/30![United Airlines logo]()
$698
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/111:25 pm
SJO
- TYS
2 stops25h 33m
United Airlines
Fri 9/186:02 pm
TYS
- SJO
2 stops27h 35m
United Airlines
Deal found 7/29![United Airlines logo]()
$714
This United Airlines deal was found by Cheapflights users on 8/1. 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 10/157:55 am
SJO
- TYS
1 stop12h 00m
United Airlines
Mon 10/197:15 am
TYS
- SJO
1 stop14h 22m
United Airlines
Deal found 8/1![United Airlines logo]()
$744
Last-minute flights from Costa Rica to KnoxvilleDiscover last-minute flight deals from Costa Rica to Knoxville. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Costa Rica to Knoxville. Data last updated August 2, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:45 am
SJO
- TYS
2 stops10h 30m
Southwest
Wed 8/127:00 am
TYS
- SJO
2 stops7h 45m
Southwest
Deal found 7/31![Southwest logo]()
$696
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 8/146:00 am
SJO
- TYS
1 stop11h 10m
American Airlines
Tue 8/187:19 am
TYS
- SJO
1 stop8h 33m
American Airlines
Deal found 7/28![American Airlines logo]()
$857
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Fri 8/287:07 am
SJO
- TYS
1 stop9h 58m
Multiple Airlines
Wed 9/1610:54 am
TYS
- SJO
2 stops23h 56m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$726
This Delta deal was found by Cheapflights users on 7/29. 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.
Fri 8/281:14 pm
SJO
- TYS
1 stop8h 38m
Delta
Wed 9/167:50 am
TYS
- SJO
1 stop6h 04m
Delta
Deal found 7/29![Delta logo]()
$767
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 8/287:55 am
SJO
- TYS
2 stops24h 02m
United Airlines
Wed 9/166:00 am
TYS
- SJO
2 stops15h 37m
United Airlines
Deal found 7/29![United Airlines logo]()
$784
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sat 8/299:25 am
SJO
- TYS
2 stops22h 39m
Multiple Airlines
Sun 9/64:49 pm
TYS
- SJO
1 stop24h 22m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$648
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 8/291:25 pm
SJO
- TYS
1 stop27h 00m
United Airlines
Wed 9/167:15 am
TYS
- SJO
1 stop14h 22m
United Airlines
Deal found 7/29![United Airlines logo]()
$793
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 8/296:00 am
SJO
- TYS
1 stop11h 10m
American Airlines
Sun 9/138:02 pm
TYS
- SJO
1 stop19h 55m
American Airlines
Deal found 7/29![American Airlines logo]()
$822
This American Airlines deal was found by Cheapflights users on 7/28. 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 8/292:53 pm
SJO
- TYS
2 stops17h 47m
American Airlines
Sun 9/68:05 pm
TYS
- SJO
2 stops17h 58m
American Airlines
Deal found 7/28![American Airlines logo]()
$828
One-way flights from Costa Rica to KnoxvilleSearch for one-way flight options from Costa Rica to Knoxville. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
Search for one-way flight options from Costa Rica to Knoxville. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 12/231:15 am
SJO
- TYS
1 stop16h 38m
United Airlines
Deal found 7/30![United Airlines logo]()
$430
Find flight deals from Costa Rica to Knoxville
Keep the following information in mind while searching for Costa Rica to Knoxville flight deals. Data was last updated August 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $506 (Southwest) |
One-way from | $430 (United Airlines) |
Popular in | March |
Cheapest in | February |
Average price | $685 |
Cheapflights Fare Finder
Customize your flight search to find flights from Costa Rica to Knoxville 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 August 2, 2026.
Use the filters below to find and compare flights from Costa Rica to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JoséKnoxville
SJO - TYS
SJOTYS
San José Juan Santamaria Intl
Wed 10/28
1:00 pm-11:22 pm
1 stop8h 22m
Knoxville McGhee Tyson
Sat 11/7
7:16 pm-2:49 pm
1 stop20h 33m
$630
San JoséKnoxville
SJO - TYS
SJOTYS
San José Juan Santamaria Intl
Fri 10/23
6:00 am-11:22 pm
2 stops15h 22m
Knoxville McGhee Tyson
Sat 11/7
7:16 pm-2:49 pm
1 stop20h 33m
$634
San JoséKnoxville
SJO - TYS
SJOTYS
San José Juan Santamaria Intl
Wed 10/28
7:45 am-9:53 am
2 stops24h 08m
Knoxville McGhee Tyson
Sat 11/7
6:45 am-8:39 pm
2 stops14h 54m
$635
San JoséKnoxville
SJO - TYS
SJOTYS
San José Juan Santamaria Intl
Fri 10/23
1:25 pm-5:08 pm
2 stops25h 43m
Knoxville McGhee Tyson
Sat 11/7
6:45 am-8:39 pm
2 stops14h 54m
$649
San JoséKnoxville
SJO - TYS
SJOTYS
San José Juan Santamaria Intl
Sun 10/25
7:45 am-8:54 pm
2 stops35h 09m
Knoxville McGhee Tyson
Sun 11/1
7:35 pm-11:25 am
2 stops16h 50m
$698
San JoséKnoxville
SJO - TYS
SJOTYS
San José Juan Santamaria Intl
Fri 9/11
1:25 pm-4:58 pm
2 stops25h 33m
Knoxville McGhee Tyson
Fri 9/18
6:02 pm-7:37 pm
2 stops27h 35m
$714
Quickest round-trip
San JoséKnoxville
SJO - TYS
SJOTYS
San José Juan Santamaria Intl
Thu 10/15
7:55 am-9:55 pm
1 stop12h 00m
Knoxville McGhee Tyson
Mon 10/19
7:15 am-7:37 pm
1 stop14h 22m
$744
Cheapest one-way
Quickest one-way
San JoséKnoxville
SJO - TYS
SJOTYS
San José Juan Santamaria Intl
Wed 12/23
1:15 am-6:53 pm
1 stop16h 38m
$430
Sorted by cheapest first
Best time to book a flight from Costa Rica to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Costa Rica with our price prediction graph.
SJO-TYS
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 Costa Rica to Knoxville
CR0-TYS
SJO-TYS
What is the cheapest month to book a flight from Costa Rica to Knoxville?
Currently, February is the cheapest month in which you can book a flight from Costa Rica to Knoxville (average of $554). Flying from Costa Rica to Knoxville in March is currently the most expensive (average of $1,069). 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 Knoxville
Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated August 2, 2026.
Read through reviews of airlines operating flights from Costa Rica to Knoxville, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Related info for your journey
Find useful and relevant information for your journey from Costa Rica to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa
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Complete your trip
Complete your trip to Knoxville by adding a car rental and/or hotel reservation to your travel itinerary.
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Other flights to Knoxville
Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 2, 2026.
Costa Rica and Knoxville flights
Browse other Costa Rica and Knoxville flight options. Last updated on August 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Costa Rica to Knoxville
Discover the top airline that operate flights from Costa Rica to Knoxville. 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 August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$564 | Average$791 | FlexibilityNo cancel fee | On-time71% |