$127+ Cheap flights from Knoxville (TYS) to Puerto Rico
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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
Jul 23 — Jul 301
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Puerto Rico 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 Puerto RicoExplore the most affordable flight options available from Knoxville to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
Explore the most affordable flight options available from Knoxville to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/147:15 pm
TYS
- SJU
1 stop29h 26m
Multiple Airlines
Thu 8/207:00 am
SJU
- TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/177:15 pm
TYS
- SJU
1 stop29h 41m
Multiple Airlines
Thu 8/207:00 am
SJU
- TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/147:15 pm
TYS
- SJU
1 stop29h 26m
Multiple Airlines
Tue 8/186:45 am
SJU
- TYS
1 stop27h 19m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/147:15 pm
TYS
- SJU
1 stop29h 26m
Multiple Airlines
Mon 8/176:26 am
SJU
- TYS
1 stop15h 58m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/147:15 pm
TYS
- SJU
1 stop29h 26m
Multiple Airlines
Wed 8/196:45 am
SJU
- TYS
1 stop27h 19m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/168:15 am
TYS
- SJU
1 stop16h 26m
Multiple Airlines
Thu 8/207:00 am
SJU
- TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/138:15 am
TYS
- SJU
1 stop16h 26m
Multiple Airlines
Thu 8/207:00 am
SJU
- TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/1512:54 pm
TYS
- SJU
1 stop11h 47m
Multiple Airlines
Mon 8/176:26 am
SJU
- TYS
1 stop15h 58m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/178:35 am
TYS
- SJU
1 stop16h 06m
Multiple Airlines
Sun 8/237:00 am
SJU
- TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/1512:54 pm
TYS
- SJU
1 stop11h 47m
Multiple Airlines
Sun 8/237:00 am
SJU
- TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/168:15 am
TYS
- SJU
1 stop16h 26m
Multiple Airlines
Sun 8/237:00 am
SJU
- TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/1512:54 pm
TYS
- SJU
1 stop11h 47m
Multiple Airlines
Tue 8/188:57 pm
SJU
- TYS
1 stop18h 02m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$282
Best flights from Knoxville to Puerto RicoDiscover carefully curated flight deals from Knoxville to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
Discover carefully curated flight deals from Knoxville to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
This Delta deal was found by Cheapflights users on 6/20. 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.
Thu 8/134:38 pm
TYS
- SJU
1 stop5h 51m
Delta
Mon 8/1712:56 pm
SJU
- TYS
1 stop7h 14m
Delta
Deal found 6/20![Delta logo]()
$416
This Southwest deal was found by Cheapflights users on 6/19. 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 11/57:05 am
TYS
- SJU
2 stops9h 45m
Southwest
Sun 11/86:05 am
SJU
- TYS
2 stops9h 55m
Southwest
Deal found 6/19![Southwest logo]()
$451
This United Airlines deal was found by Cheapflights users on 6/20. 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 9/17:15 am
TYS
- SJU
1 stop8h 27m
United Airlines
Wed 9/24:55 pm
SJU
- TYS
1 stop7h 04m
United Airlines
Deal found 6/20![United Airlines logo]()
$516
This Delta deal was found by Cheapflights users on 6/18. 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 10/195:30 am
TYS
- SJU
1 stop6h 06m
Delta
Fri 10/307:30 am
SJU
- TYS
1 stop7h 35m
Delta
Deal found 6/18![Delta logo]()
$426
This Southwest deal was found by Cheapflights users on 6/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:00 pm
TYS
- SJU
2 stops9h 20m
Southwest
Mon 1/256:15 am
SJU
- TYS
2 stops13h 25m
Southwest
Deal found 6/23![Southwest logo]()
$480
This Delta deal was found by Cheapflights users on 6/21. 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 8/34:38 pm
TYS
- SJU
1 stop5h 51m
Delta
Mon 8/107:00 am
SJU
- TYS
1 stop6h 34m
Delta
Deal found 6/21![Delta logo]()
$486
This Southwest deal was found by Cheapflights users on 6/22. 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 7/2212:45 pm
TYS
- SJU
1 stop7h 05m
Southwest
Mon 7/276:00 am
SJU
- TYS
1 stop7h 45m
Southwest
Deal found 6/22![Southwest logo]()
$541
This Southwest deal was found by Cheapflights users on 6/20. 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 8/18:00 am
TYS
- SJU
2 stops11h 25m
Southwest
Thu 8/66:30 am
SJU
- TYS
2 stops12h 05m
Southwest
Deal found 6/20![Southwest logo]()
$556
This Southwest deal was found by Cheapflights users on 6/20. 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 11/57:05 am
TYS
- SJU
2 stops9h 45m
Southwest
Mon 11/97:30 am
SJU
- TYS
1 stop10h 20m
Southwest
Deal found 6/20![Southwest logo]()
$561
This Southwest deal was found by Cheapflights users on 6/18. 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 7/181:35 pm
TYS
- SJU
1 stop9h 30m
Southwest
Sat 7/256:30 am
SJU
- TYS
1 stop7h 35m
Southwest
Deal found 6/18![Southwest logo]()
$581
Last-minute flights from Knoxville to Puerto RicoDiscover last-minute flight deals from Knoxville to Puerto Rico. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Puerto Rico. Data last updated June 23, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/312:40 pm
TYS
- SJU
1 stop25h 49m
Multiple Airlines
Mon 7/68:52 am
SJU
- TYS
1 stop14h 41m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 7/612:40 pm
TYS
- SJU
1 stop25h 15m
Multiple Airlines
Fri 7/106:30 am
SJU
- TYS
1 stop15h 30m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/1012:40 pm
TYS
- SJU
1 stop25h 15m
Multiple Airlines
Wed 7/155:45 pm
SJU
- TYS
2 stops28h 39m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/1312:40 pm
TYS
- SJU
1 stop25h 15m
Multiple Airlines
Fri 7/176:30 am
SJU
- TYS
1 stop15h 30m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 7/163:38 pm
TYS
- SJU
1 stop8h 20m
Multiple Airlines
Mon 7/206:30 am
SJU
- TYS
1 stop15h 30m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/1712:40 pm
TYS
- SJU
1 stop25h 15m
Multiple Airlines
Sun 7/268:37 pm
SJU
- TYS
1 stop26h 56m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 7/2012:40 pm
TYS
- SJU
1 stop25h 15m
Multiple Airlines
Fri 7/246:45 am
SJU
- TYS
1 stop15h 15m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/2012:40 pm
TYS
- SJU
1 stop25h 15m
Multiple Airlines
Mon 7/276:45 am
SJU
- TYS
1 stop15h 15m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$343
One-way flights from Knoxville to Puerto RicoSearch for one-way flight options from Knoxville to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
Search for one-way flight options from Knoxville to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 8/241:55 pm
TYS
- SJU
1 stop20h 24m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$127
This American Airlines deal was found by Cheapflights users on 6/18. 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 8/247:23 pm
TYS
- SJU
1 stop14h 20m
American Airlines
Deal found 6/18![American Airlines logo]()
$153
This Southwest deal was found by Cheapflights users on 6/18. 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 8/247:10 am
TYS
- SJU
2 stops9h 45m
Southwest
Deal found 6/18![Southwest logo]()
$192
This United Airlines deal was found by Cheapflights users on 6/22. 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 7/225:45 am
TYS
- SJU
1 stop6h 49m
United Airlines
Deal found 6/22![United Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 6/21. 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 11/275:30 am
TYS
- SJU
1 stop7h 50m
Delta
Deal found 6/21![Delta logo]()
$288
This eDestinos deal was found by Cheapflights users on 6/21. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/53:38 pm
TYS
- SJU
1 stop11h 21m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 6/22. 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 7/55:40 am
TYS
- SJU
1 stop6h 04m
Delta
Deal found 6/22![Delta logo]()
$298
This Southwest deal was found by Cheapflights users on 6/22. 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 7/228:10 am
TYS
- SJU
2 stops8h 55m
Southwest
Deal found 6/22![Southwest logo]()
$308
This deal was found by Cheapflights users on 6/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:45 am
TYS
- SJU
1 stop6h 49m
United Airlines
Deal found 6/22![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 6/22. 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
- SJU
1 stop7h 31m
Delta
Deal found 6/22![Delta logo]()
$328
Find flight deals from Knoxville to Puerto Rico
Keep the following information in mind while searching for Knoxville to Puerto Rico flight deals. Data was last updated June 23, 2026.
Round-trip from | $226 (Kiwi.com) |
|---|---|
One-way from | $127 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $586 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Puerto Rico 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 June 23, 2026.
Use the filters below to find and compare flights from Knoxville to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Thu 8/13
4:38 pm-10:29 pm
1 stop5h 51m
San Juan Luis Munoz Marin Intl
Mon 8/17
12:56 pm-8:10 pm
1 stop7h 14m
$416
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Mon 10/19
5:30 am-11:36 am
1 stop6h 06m
San Juan Luis Munoz Marin Intl
Fri 10/30
7:30 am-3:05 pm
1 stop7h 35m
$426
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Thu 11/5
7:05 am-5:50 pm
2 stops9h 45m
San Juan Luis Munoz Marin Intl
Sun 11/8
6:05 am-3:00 pm
2 stops9h 55m
$451
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Mon 11/16
1:00 pm-11:20 pm
2 stops9h 20m
San Juan Luis Munoz Marin Intl
Mon 1/25
6:15 am-6:40 pm
2 stops13h 25m
$480
Quickest round-trip
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Mon 8/3
4:38 pm-10:29 pm
1 stop5h 51m
San Juan Luis Munoz Marin Intl
Mon 8/10
7:00 am-1:34 pm
1 stop6h 34m
$486
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Tue 9/1
7:15 am-3:42 pm
1 stop8h 27m
San Juan Luis Munoz Marin Intl
Wed 9/2
4:55 pm-11:59 pm
1 stop7h 04m
$516
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Wed 7/22
12:45 pm-7:50 pm
1 stop7h 05m
San Juan Luis Munoz Marin Intl
Mon 7/27
6:00 am-1:45 pm
1 stop7h 45m
$541
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Sat 8/1
8:00 am-7:25 pm
2 stops11h 25m
San Juan Luis Munoz Marin Intl
Thu 8/6
6:30 am-6:35 pm
2 stops12h 05m
$556
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Thu 11/5
7:05 am-5:50 pm
2 stops9h 45m
San Juan Luis Munoz Marin Intl
Mon 11/9
7:30 am-4:50 pm
1 stop10h 20m
$561
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Sat 7/18
1:35 pm-11:05 pm
1 stop9h 30m
San Juan Luis Munoz Marin Intl
Sat 7/25
6:30 am-2:05 pm
1 stop7h 35m
$581
Showing 1-10 of 15 resultsSorted by cheapest first
Best time to book a flight from Knoxville to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Knoxville with our price prediction graph.
TYS-SJU
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 Puerto Rico
TYS-PR0
TYS-SJU
What is the cheapest month to book a flight from Knoxville to Puerto Rico?
Currently, November is the cheapest month in which you can book a flight from Knoxville to Puerto Rico (average of $160). Flying from Knoxville to Puerto Rico in March is currently the most expensive (average of $521). 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 Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated June 23, 2026.
See what other customers who have flown with Southwest,Delta, andAmerican Airlines from Knoxville to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Puerto Rico. 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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Knoxville and Puerto Rico flights
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Top 3 airlines flying from Knoxville to Puerto Rico
Discover the top 3 airlines that operate flights from Knoxville to Puerto Rico. 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 June 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$238 | Average$496 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$376 | Average$516 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$385 | Average$594 | FlexibilityNo cancel fee | On-time71% |