$195+ 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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Oct 2 — Oct 91
Round-trip
1 adult, Economy
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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
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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 September 2, 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 September 2, 2026.
This Southwest deal was found by Cheapflights users on 8/31. 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.
Thu 10/157:15 am -
2 stops14h 25m
Thu 10/229:00 am -
2 stops11h 45m
Deal found 8/31![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:20 am -
2 stops13h 20m
Tue 10/209:00 am -
2 stops10h 05m
Deal found 9/1![Southwest logo]()
$406
This Southwest deal was found by Cheapflights users on 8/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:10 am -
2 stops13h 30m
Thu 10/299:00 am -
2 stops11h 45m
Deal found 8/29![Southwest logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:15 am -
2 stops51h 40m
Thu 10/227:07 am -
1 stop27h 07m
Deal found 8/31![Multiple Airlines logo]()
$564
This Southwest deal was found by Cheapflights users on 8/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:15 am -
2 stops14h 25m
Mon 10/129:00 am -
2 stops11h 45m
Deal found 8/30![Southwest logo]()
$580
This Southwest deal was found by Cheapflights users on 8/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:50 pm -
2 stops21h 55m
Mon 10/59:00 am -
2 stops11h 45m
Deal found 8/30![Southwest logo]()
$604
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop16h 21m
Thu 10/291:00 pm -
1 stop8h 18m
Deal found 8/31![American Airlines logo]()
$608
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:14 pm -
1 stop18h 53m
Tue 11/102:07 pm -
1 stop7h 41m
Deal found 8/31![American Airlines logo]()
$615
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:00 am -
1 stop27h 30m
Tue 10/207:07 am -
2 stops50h 22m
Deal found 9/1![Multiple Airlines logo]()
$628
This American Airlines deal was found by Cheapflights users on 8/30. 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.
Tue 10/206:00 am -
1 stop16h 21m
Sat 10/316:00 am -
1 stop14h 59m
Deal found 8/30![American Airlines logo]()
$638
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 10/167:25 pm -
2 stops18h 45m
Fri 10/231:20 pm -
2 stops18h 25m
Deal found 9/1![United Airlines logo]()
$723
This Delta deal was found by Cheapflights users on 8/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:50 am -
1 stop6h 10m
Tue 10/61:00 pm -
1 stop7h 22m
Deal found 8/31![Delta logo]()
$739
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 September 2, 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 September 2, 2026.
This Southwest deal was found by Cheapflights users on 8/31. 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.
Thu 10/157:15 am -
2 stops14h 25m
Thu 10/229:00 am -
2 stops11h 45m
Deal found 8/31![Southwest logo]()
$364
This Delta deal was found by Cheapflights users on 9/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/244:00 pm -
1 stop7h 05m
Sun 1/312:10 pm -
1 stop6h 35m
Deal found 9/1![Delta logo]()
$633
This American Airlines deal was found by Cheapflights users on 9/2. 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 1/138:00 am -
1 stop12h 55m
Sun 1/246:20 am -
1 stop12h 55m
Deal found 9/2![American Airlines logo]()
$643
This United Airlines deal was found by Cheapflights users on 8/30. 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.
Thu 1/712:00 pm -
1 stop7h 16m
Tue 2/1611:28 pm -
2 stops12h 50m
Deal found 8/30![United Airlines logo]()
$660
This Delta deal was found by Cheapflights users on 9/2. 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 1/136:00 am -
1 stop7h 45m
Sun 1/247:05 am -
1 stop9h 08m
Deal found 9/2![Delta logo]()
$633
This American Airlines deal was found by Cheapflights users on 8/29. 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 2/215:30 am -
1 stop18h 56m
Sat 2/2712:35 am -
1 stop17h 47m
Deal found 8/29![American Airlines logo]()
$643
This Delta deal was found by Cheapflights users on 8/29. 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 12/1110:41 am -
1 stop12h 36m
Mon 1/117:05 am -
1 stop10h 08m
Deal found 8/29![Delta logo]()
$658
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Wed 2/310:45 am -
2 stops10h 54m
Tue 2/91:15 am -
3 stops17h 36m
Deal found 8/29![United Airlines logo]()
$733
This American Airlines deal was found by Cheapflights users on 8/30. 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.
Sat 2/137:13 pm -
2 stops18h 14m
Tue 2/163:17 pm -
2 stops18h 48m
Deal found 8/30![American Airlines logo]()
$672
This United Airlines deal was found by Cheapflights users on 8/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:25 pm -
2 stops18h 45m
Tue 10/61:20 pm -
1 stop19h 57m
Deal found 8/31![United Airlines logo]()
$752
This Delta deal was found by Cheapflights users on 8/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:50 am -
1 stop6h 10m
Tue 10/61:00 pm -
1 stop7h 22m
Deal found 8/31![Delta logo]()
$739
This American Airlines deal was found by Cheapflights users on 8/29. 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 11/128:52 pm -
2 stops18h 25m
Mon 11/163:35 pm -
2 stops18h 37m
Deal found 8/29![American Airlines logo]()
$751
This United Airlines deal was found by Cheapflights users on 9/1. 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 12/109:45 am -
2 stops26h 59m
Tue 12/155:20 pm -
2 stops20h 05m
Deal found 9/1![United Airlines logo]()
$798
This American Airlines deal was found by Cheapflights users on 8/29. 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.
Tue 11/35:19 pm -
2 stops21h 58m
Tue 11/101:33 pm -
2 stops20h 25m
Deal found 8/29![American Airlines logo]()
$771
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Sun 10/257:00 am -
1 stop12h 37m
Thu 10/294:20 pm -
1 stop16h 24m
Deal found 8/29![United Airlines logo]()
$806
This American Airlines deal was found by Cheapflights users on 9/2. 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 stop7h 31m
Sat 12/51:33 pm -
2 stops19h 57m
Deal found 9/2![American Airlines logo]()
$777
This American Airlines deal was found by Cheapflights users on 8/29. 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 1/28:01 pm -
1 stop17h 29m
Sun 1/103:17 pm -
2 stops19h 27m
Deal found 8/29![American Airlines logo]()
$785
Last-minute flights from Knoxville to Costa RicaDiscover last-minute flight deals from Knoxville to Costa Rica. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Costa Rica. Data last updated September 2, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:50 pm -
2 stops21h 55m
Mon 10/59:00 am -
2 stops11h 45m
Deal found 8/30![Southwest logo]()
$604
This Delta deal was found by Cheapflights users on 8/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:50 am -
1 stop6h 10m
Tue 10/61:00 pm -
1 stop7h 22m
Deal found 8/31![Delta logo]()
$739
This United Airlines deal was found by Cheapflights users on 8/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:25 pm -
2 stops18h 45m
Tue 10/61:20 pm -
2 stops18h 25m
Deal found 8/31![United Airlines logo]()
$744
This Southwest deal was found by Cheapflights users on 8/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:15 am -
2 stops14h 25m
Mon 10/129:00 am -
2 stops11h 45m
Deal found 8/30![Southwest logo]()
$580
This Southwest deal was found by Cheapflights users on 8/31. 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.
Thu 10/157:15 am -
2 stops14h 25m
Thu 10/229:00 am -
2 stops11h 45m
Deal found 8/31![Southwest logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:15 am -
2 stops51h 40m
Thu 10/227:07 am -
1 stop27h 07m
Deal found 8/31![Multiple Airlines logo]()
$564
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:20 am -
2 stops13h 20m
Tue 10/209:00 am -
2 stops10h 05m
Deal found 9/1![Southwest logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:00 am -
1 stop27h 30m
Tue 10/207:07 am -
2 stops50h 22m
Deal found 9/1![Multiple Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 10/167:15 am -
1 stop6h 55m
Fri 10/231:20 pm -
2 stops21h 54m
Deal found 9/1![United Airlines logo]()
$723
This American Airlines deal was found by Cheapflights users on 8/30. 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.
Tue 10/206:00 am -
1 stop16h 21m
Sat 10/316:00 am -
1 stop14h 59m
Deal found 8/30![American Airlines logo]()
$638
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop16h 21m
Thu 10/291:00 pm -
1 stop8h 18m
Deal found 8/31![American Airlines logo]()
$608
This Southwest deal was found by Cheapflights users on 8/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:10 am -
2 stops13h 30m
Thu 10/299:00 am -
2 stops11h 45m
Deal found 8/29![Southwest logo]()
$434
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 September 2, 2026.
Search for one-way flight options from Knoxville to Costa Rica. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This Southwest deal was found by Cheapflights users on 9/2. 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 10/265:30 pm -
2 stops20h 35m
Deal found 9/2![Southwest logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/238:00 am -
1 stop26h 30m
Deal found 9/2![Multiple Airlines logo]()
$215
This Southwest deal was found by Cheapflights users on 8/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am -
2 stops7h 45m
Deal found 8/29![Southwest logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/297:45 am -
3 stops50h 10m
Deal found 9/2![Multiple Airlines logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 11/93:54 pm -
3 stops42h 01m
Deal found 9/2![Multiple Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/262:12 pm -
3 stops43h 43m
Deal found 9/2![Multiple Airlines logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/244:41 pm -
3 stops42h 23m
Deal found 9/2![Multiple Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 9/2. 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 9/235:40 am -
1 stop8h 20m
Deal found 9/2![Delta logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 8/30. 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.
Wed 9/2310:54 am -
3 stops22h 16m
Deal found 8/30![Multiple Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/236:00 pm -
2 stops20h 10m
Deal found 9/2![United Airlines logo]()
$481
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 September 2, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $364 (Southwest) |
One-way from | $195 (Southwest) |
Popular in | July |
Cheapest in | September |
Average price | $503 |
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 September 2, 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
Thu 10/15
7:15 am-7:40 pm
2 stops14h 25m
San José Juan Santamaria Intl
Thu 10/22
9:00 am-10:45 pm
2 stops11h 45m
$364
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Sun 1/24
4:00 pm-10:05 pm
1 stop7h 05m
San José Juan Santamaria Intl
Sun 1/31
2:10 pm-9:45 pm
1 stop6h 35m
$633
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Wed 1/13
6:00 am-12:45 pm
1 stop7h 45m
San José Juan Santamaria Intl
Sun 1/24
7:05 am-5:13 pm
1 stop9h 08m
$633
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Wed 1/13
8:00 am-7:55 pm
1 stop12h 55m
San José Juan Santamaria Intl
Sun 1/24
6:20 am-8:15 pm
1 stop12h 55m
$643
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Sun 2/21
5:30 am-11:26 pm
1 stop18h 56m
San José Juan Santamaria Intl
Sat 2/27
12:35 am-7:22 pm
1 stop17h 47m
$643
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Fri 12/11
10:41 am-10:17 pm
1 stop12h 36m
San José Juan Santamaria Intl
Mon 1/11
7:05 am-6:13 pm
1 stop10h 08m
$658
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Thu 1/7
12:00 pm-6:16 pm
1 stop7h 16m
San José Juan Santamaria Intl
Tue 2/16
11:28 pm-1:18 pm
2 stops12h 50m
$660
KnoxvilleLiberia
TYS Knoxville McGhee Tyson - LIR Liberia
TYSLIR
Knoxville McGhee Tyson
Sat 2/13
7:13 pm-12:27 pm
2 stops18h 14m
Liberia
Tue 2/16
3:17 pm-11:05 am
2 stops18h 48m
$672
KnoxvilleSan José
TYS Knoxville McGhee Tyson - SJO San José Juan Santamaria Intl
TYSSJO
Knoxville McGhee Tyson
Wed 2/3
10:45 am-8:39 pm
2 stops10h 54m
San José Juan Santamaria Intl
Tue 2/9
1:15 am-7:51 pm
3 stops17h 36m
$733
Quickest round-trip
KnoxvilleLiberia
TYS Knoxville McGhee Tyson - LIR Liberia
TYSLIR
Knoxville McGhee Tyson
Tue 9/29
7:50 am-12:00 pm
1 stop6h 10m
Liberia
Tue 10/6
1:00 pm-10:22 pm
1 stop7h 22m
$739
Showing 1-10 of 31 resultsSorted 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-SJO
TYS-LIR
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-SJO
TYS-LIR
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 $503). 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 September 2, 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
Overall
7.8
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Crew
8.5
Overall
7.8
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Crew
8.5
Overall
7.8
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Crew
8.5
Overall
7.8
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - 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 September 2, 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 September 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$324 | Average$739 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$500 | Average$722 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$550 | Average$768 | FlexibilityNo cancel fee | On-time69% |