$206+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJO
Jun 27 — Jul 41
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Costa Rica with Cheapflights
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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 May 28, 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 May 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 7/206:30 am
TYS
- SJO
2 stops20h 45m
Multiple Airlines
Mon 7/277:07 am
SJO
- TYS
1 stop14h 26m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$589
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 7/37:20 pm
TYS
- SJO
1 stop15h 00m
Multiple Airlines
Sat 7/117:48 pm
SJO
- TYS
2 stops38h 02m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$604
This Delta deal was found by Cheapflights users on 5/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/13:55 pm
TYS
- SJO
1 stop7h 20m
Delta
Tue 12/157:00 am
SJO
- TYS
1 stop7h 05m
Delta
Deal found 5/25![Delta logo]()
$608
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:36 pm
TYS
- SJO
1 stop21h 35m
Multiple Airlines
Thu 10/297:07 am
SJO
- TYS
1 stop12h 26m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$611
This American Airlines deal was found by Cheapflights users on 5/25. 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.
Sun 12/137:38 am
TYS
- SJO
2 stops14h 11m
American Airlines
Wed 12/2312:34 am
SJO
- TYS
2 stops11h 18m
American Airlines
Deal found 5/25![American Airlines logo]()
$613
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:26 pm
TYS
- SJO
1 stop21h 45m
Multiple Airlines
Mon 6/297:07 am
SJO
- TYS
1 stop14h 27m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$616
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Mon 6/810:03 pm
TYS
- SJO
1 stop19h 08m
Multiple Airlines
Fri 6/127:07 am
SJO
- TYS
1 stop14h 27m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$624
This American Airlines deal was found by Cheapflights users on 5/23. 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 9/76:00 am
TYS
- SJO
1 stop7h 34m
American Airlines
Thu 9/171:05 pm
SJO
- TYS
1 stop8h 26m
American Airlines
Deal found 5/23![American Airlines logo]()
$628
This Southwest deal was found by Cheapflights users on 5/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/32:55 pm
TYS
- SJO
2 stops17h 05m
Southwest
Fri 10/912:55 pm
SJO
- TYS
2 stops21h 00m
Southwest
Deal found 5/27![Southwest logo]()
$635
This American Airlines deal was found by Cheapflights users on 5/25. 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.
Thu 10/158:37 pm
TYS
- SJO
2 stops18h 23m
American Airlines
Thu 10/291:05 pm
SJO
- TYS
2 stops19h 22m
American Airlines
Deal found 5/25![American Airlines logo]()
$638
This Delta deal was found by Cheapflights users on 5/24. 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 9/75:45 am
TYS
- SJO
1 stop8h 04m
Delta
Thu 9/171:25 pm
SJO
- TYS
1 stop8h 25m
Delta
Deal found 5/24![Delta logo]()
$647
This American Airlines deal was found by Cheapflights users on 5/26. 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 9/167:00 am
TYS
- LIR
1 stop8h 18m
American Airlines
Wed 9/232:47 pm
LIR
- TYS
2 stops20h 20m
American Airlines
Deal found 5/26![American Airlines logo]()
$656
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 May 28, 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 May 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:36 pm
TYS
- SJO
1 stop21h 35m
Multiple Airlines
Thu 10/297:07 am
SJO
- TYS
1 stop12h 26m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$611
This American Airlines deal was found by Cheapflights users on 5/26. 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 9/167:00 am
TYS
- LIR
1 stop8h 18m
American Airlines
Wed 9/232:47 pm
LIR
- TYS
2 stops20h 20m
American Airlines
Deal found 5/26![American Airlines logo]()
$656
This Delta deal was found by Cheapflights users on 5/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:40 am
TYS
- LIR
1 stop8h 20m
Delta
Wed 7/81:25 pm
LIR
- TYS
1 stop8h 27m
Delta
Deal found 5/25![Delta logo]()
$706
This Avianca deal was found by Cheapflights users on 5/27. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:45 am
TYS
- SJO
2 stops19h 55m
Avianca
Tue 9/15:05 am
SJO
- TYS
2 stops16h 54m
Avianca
Deal found 5/27![Avianca logo]()
$737
This United Airlines deal was found by Cheapflights users on 5/23. 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 7/33:25 pm
TYS
- SJO
1 stop9h 14m
United Airlines
Sat 7/1111:13 am
SJO
- TYS
1 stop9h 59m
United Airlines
Deal found 5/23![United Airlines logo]()
$762
This American Airlines deal was found by Cheapflights users on 5/26. 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.
Sun 6/75:37 am
TYS
- SJO
1 stop19h 06m
American Airlines
Fri 6/126:01 am
SJO
- TYS
2 stops13h 30m
American Airlines
Deal found 5/26![American Airlines logo]()
$702
This Delta deal was found by Cheapflights users on 5/23. 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.
Sat 7/46:00 am
TYS
- SJO
1 stop7h 49m
Delta
Sat 7/112:32 pm
SJO
- TYS
1 stop7h 12m
Delta
Deal found 5/23![Delta logo]()
$762
This United Airlines deal was found by Cheapflights users on 5/23. 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 7/71:54 pm
TYS
- SJO
2 stops22h 17m
United Airlines
Wed 7/1511:13 am
SJO
- TYS
1 stop9h 59m
United Airlines
Deal found 5/23![United Airlines logo]()
$772
This American Airlines deal was found by Cheapflights users on 5/27. 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.
Sun 10/118:37 pm
TYS
- SJO
2 stops18h 23m
American Airlines
Sat 10/172:45 pm
SJO
- TYS
1 stop6h 50m
American Airlines
Deal found 5/27![American Airlines logo]()
$709
This Delta deal was found by Cheapflights users on 5/24. 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 8/35:45 am
TYS
- LIR
1 stop8h 15m
Delta
Tue 8/111:25 pm
LIR
- TYS
1 stop8h 27m
Delta
Deal found 5/24![Delta logo]()
$786
This American Airlines deal was found by Cheapflights users on 5/24. 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 6/165:37 am
TYS
- LIR
1 stop10h 04m
American Airlines
Thu 6/253:37 pm
LIR
- TYS
1 stop17h 36m
American Airlines
Deal found 5/24![American Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 5/24. 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 10/267:00 am
TYS
- SJO
1 stop29h 25m
United Airlines
Wed 10/2811:35 am
SJO
- TYS
1 stop9h 44m
United Airlines
Deal found 5/24![United Airlines logo]()
$822
This American Airlines deal was found by Cheapflights users on 5/27. 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 7/15:00 am
TYS
- LIR
2 stops10h 18m
American Airlines
Wed 7/82:47 pm
LIR
- TYS
2 stops18h 58m
American Airlines
Deal found 5/27![American Airlines logo]()
$816
Last-minute flights from Knoxville to Costa RicaDiscover last-minute flight deals from Knoxville to Costa Rica. Data last updated May 28, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Costa Rica. Data last updated May 28, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/26. 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 5/286:00 am
TYS
- SJO
1 stop7h 50m
American Airlines
Sat 6/611:59 pm
SJO
- TYS
1 stop9h 14m
American Airlines
Deal found 5/26![American Airlines logo]()
$762
This American Airlines deal was found by Cheapflights users on 5/26. 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.
Sun 6/75:37 am
TYS
- SJO
1 stop19h 06m
American Airlines
Fri 6/126:01 am
SJO
- TYS
1 stop15h 58m
American Airlines
Deal found 5/26![American Airlines logo]()
$698
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Mon 6/810:03 pm
TYS
- SJO
1 stop19h 08m
Multiple Airlines
Fri 6/127:07 am
SJO
- TYS
1 stop14h 27m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$624
This Ovago deal was found by Cheapflights users on 5/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:19 pm
TYS
- SJO
2 stops15h 02m
Copa Airlines
Mon 6/155:47 am
SJO
- TYS
2 stops16h 07m
Copa Airlines
Deal found 5/26![Copa Airlines logo]()
$747
This American Airlines deal was found by Cheapflights users on 5/26. 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.
Tue 6/165:37 am
TYS
- LIR
1 stop10h 04m
American Airlines
Thu 6/252:45 pm
LIR
- TYS
1 stop7h 14m
American Airlines
Deal found 5/26![American Airlines logo]()
$723
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:26 pm
TYS
- SJO
1 stop21h 45m
Multiple Airlines
Mon 6/297:07 am
SJO
- TYS
1 stop14h 27m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$616
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 6/242:19 pm
TYS
- SJO
1 stop26h 52m
Multiple Airlines
Wed 7/17:07 am
SJO
- TYS
1 stop9h 48m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$670
This American Airlines deal was found by Cheapflights users on 5/27. 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 6/246:00 am
TYS
- LIR
1 stop9h 18m
American Airlines
Tue 6/302:45 pm
LIR
- TYS
2 stops18h 03m
American Airlines
Deal found 5/27![American Airlines logo]()
$888
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Wed 6/247:15 am
TYS
- LIR
1 stop9h 10m
United Airlines
Tue 6/301:20 pm
LIR
- TYS
1 stop7h 52m
United Airlines
Deal found 5/27![United Airlines logo]()
$1,029
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 May 28, 2026.
Search for one-way flight options from Knoxville to Costa Rica. Find affordable one-way fares based on user searches. Data last updated May 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/26. 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 10/309:41 pm
TYS
- SJO
1 stop12h 14m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$206
This business-class.com deal was found by Cheapflights users on 5/26. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1012:10 pm
TYS
- LIR
1 stop23h 40m
Air New Zealand
Deal found 5/26![Air New Zealand logo]()
$946
This business-class.com deal was found by Cheapflights users on 5/26. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:07 pm
TYS
- LIR
2 stops22h 30m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,139
This United Airlines deal was found by Cheapflights users on 5/26. 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 6/105:41 pm
TYS
- LIR
2 stops18h 09m
United Airlines
Deal found 5/26![United Airlines logo]()
$1,617
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 May 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $589 (Kiwi.com) |
One-way from | $206 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $660 |
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 May 28, 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 - SJO
TYSSJO
Knoxville McGhee Tyson
Thu 10/15
7:36 pm-3:11 pm
1 stop21h 35m
San José Juan Santamaria Intl
Thu 10/29
7:07 am-9:33 pm
1 stop12h 26m
$611
KnoxvilleLiberia
TYS - LIR
TYSLIR
Knoxville McGhee Tyson
Wed 9/16
7:00 am-1:18 pm
1 stop8h 18m
Liberia
Wed 9/23
2:47 pm-1:07 pm
2 stops20h 20m
$656
KnoxvilleSan José
TYS - SJO
TYSSJO
Knoxville McGhee Tyson
Sun 6/7
5:37 am-10:43 pm
1 stop19h 06m
San José Juan Santamaria Intl
Fri 6/12
6:01 am-9:31 pm
2 stops13h 30m
$702
KnoxvilleLiberia
TYS - LIR
TYSLIR
Knoxville McGhee Tyson
Wed 7/1
5:40 am-12:00 pm
1 stop8h 20m
Liberia
Wed 7/8
1:25 pm-11:52 pm
1 stop8h 27m
$706
KnoxvilleSan José
TYS - SJO
TYSSJO
Knoxville McGhee Tyson
Sun 10/11
8:37 pm-1:00 pm
2 stops18h 23m
San José Juan Santamaria Intl
Sat 10/17
2:45 pm-11:35 pm
1 stop6h 50m
$709
KnoxvilleLiberia
TYS - LIR
TYSLIR
Knoxville McGhee Tyson
Tue 6/16
5:37 am-1:41 pm
1 stop10h 04m
Liberia
Thu 6/25
3:37 pm-11:13 am
1 stop17h 36m
$723
KnoxvilleSan José
TYS - SJO
TYSSJO
Knoxville McGhee Tyson
Fri 8/28
5:45 am-11:40 pm
2 stops19h 55m
San José Juan Santamaria Intl
Tue 9/1
5:05 am-11:59 pm
2 stops16h 54m
$737
KnoxvilleSan José
TYS - SJO
TYSSJO
Knoxville McGhee Tyson
Fri 7/3
3:25 pm-10:39 pm
1 stop9h 14m
San José Juan Santamaria Intl
Sat 7/11
11:13 am-11:12 pm
1 stop9h 59m
$762
Quickest round-trip
KnoxvilleSan José
TYS - SJO
TYSSJO
Knoxville McGhee Tyson
Sat 7/4
6:00 am-11:49 am
1 stop7h 49m
San José Juan Santamaria Intl
Sat 7/11
2:32 pm-11:44 pm
1 stop7h 12m
$762
KnoxvilleSan José
TYS - SJO
TYSSJO
Knoxville McGhee Tyson
Tue 7/7
1:54 pm-10:11 am
2 stops22h 17m
San José Juan Santamaria Intl
Wed 7/15
11:13 am-11:12 pm
1 stop9h 59m
$772
Showing 1-10 of 17 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, December is the cheapest month in which you can book a flight from Knoxville to Costa Rica (average of $324). Flying from Knoxville to Costa Rica in April is currently the most expensive (average of $574). 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.
How often are flights from Knoxville to Costa Rica delayed?
About 100% of weekly flights between Knoxville and Costa Rica have experienced delays in the past year, with the average delay time being 48 minutes.
What is the most punctual flight time for Knoxville to Costa Rica flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
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 May 28, 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.
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
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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 May 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$491 | Average$693 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$536 | Average$638 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$550 | Average$664 | FlexibilityNo cancel fee | On-time69% |