$123+ Cheap flights from Puerto Rico 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — TYS
Jul 26 — Aug 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Puerto Rico to Knoxville 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
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 Puerto Rico to Knoxville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Puerto Rico to KnoxvilleExplore the most affordable flight options available from Puerto Rico to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2026.
Explore the most affordable flight options available from Puerto Rico to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:26 am
SJU
- TYS
1 stop15h 58m
Multiple Airlines
Fri 8/211:55 pm
TYS
- SJU
1 stop19h 24m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$296
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:43 pm
SJU
- TYS
1 stop6h 03m
Delta
Sat 10/248:47 am
TYS
- SJU
1 stop7h 46m
Delta
Deal found 6/23![Delta logo]()
$298
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:44 pm
SJU
- TYS
1 stop7h 10m
American Airlines
Mon 11/165:05 am
TYS
- SJU
1 stop6h 59m
American Airlines
Deal found 6/22![American Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:00 am
SJU
- TYS
1 stop28h 26m
Multiple Airlines
Sun 8/97:45 am
TYS
- SJU
1 stop8h 26m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:30 am
SJU
- TYS
1 stop10h 10m
Multiple Airlines
Fri 10/239:28 pm
TYS
- SJU
1 stop26h 13m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$329
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.
Fri 9/255:30 am
SJU
- TYS
2 stops11h 40m
Southwest
Tue 9/298:05 am
TYS
- SJU
2 stops10h 55m
Southwest
Deal found 6/22![Southwest logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:30 am
SJU
- TYS
1 stop15h 00m
Multiple Airlines
Fri 10/239:28 pm
TYS
- SJU
1 stop26h 13m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:30 am
SJU
- TYS
1 stop10h 10m
Multiple Airlines
Mon 10/197:00 am
TYS
- SJU
1 stop6h 16m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:30 am
SJU
- TYS
1 stop10h 10m
Multiple Airlines
Sat 10/244:41 pm
TYS
- SJU
1 stop7h 00m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 6/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:10 am
SJU
- TYS
1 stop6h 35m
Southwest
Mon 10/197:10 am
TYS
- SJU
2 stops9h 20m
Southwest
Deal found 6/26![Southwest logo]()
$351
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.
Thu 11/126:05 am
SJU
- TYS
2 stops9h 55m
Southwest
Sat 11/147:10 am
TYS
- SJU
1 stop11h 05m
Southwest
Deal found 6/23![Southwest logo]()
$363
Best flights from Puerto Rico to KnoxvilleDiscover carefully curated flight deals from Puerto Rico to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 26, 2026.
Discover carefully curated flight deals from Puerto Rico to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 26, 2026.
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.
Fri 8/75:49 pm
SJU
- TYS
1 stop6h 03m
Delta
Mon 8/1012:01 pm
TYS
- SJU
1 stop10h 28m
Delta
Deal found 6/22![Delta logo]()
$446
This Southwest deal was found by Cheapflights users on 6/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:30 am
SJU
- TYS
2 stops12h 05m
Southwest
Fri 8/212:05 pm
TYS
- SJU
2 stops9h 45m
Southwest
Deal found 6/24![Southwest logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Wed 7/156:00 am
SJU
- TYS
1 stop11h 59m
Multiple Airlines
Wed 7/291:05 pm
TYS
- SJU
1 stop27h 00m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 6/24. 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.
Fri 8/144:55 pm
SJU
- TYS
1 stop7h 04m
United Airlines
Mon 8/175:45 am
TYS
- SJU
1 stop7h 09m
United Airlines
Deal found 6/24![United Airlines logo]()
$634
This Faresmojo 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/172:55 pm
SJU
- TYS
1 stop8h 17m
JetBlue
Sat 7/256:00 am
TYS
- SJU
1 stop8h 44m
JetBlue
Deal found 6/21![JetBlue logo]()
$636
This Delta deal was found by Cheapflights users on 6/25. 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 7/215:50 pm
SJU
- TYS
1 stop6h 02m
Delta
Thu 7/303:54 pm
TYS
- SJU
1 stop6h 35m
Delta
Deal found 6/25![Delta logo]()
$544
This Southwest deal was found by Cheapflights users on 6/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:00 am
SJU
- TYS
2 stops11h 40m
Southwest
Mon 8/108:25 am
TYS
- SJU
2 stops11h 40m
Southwest
Deal found 6/24![Southwest logo]()
$594
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:56 pm
SJU
- TYS
1 stop5h 58m
Delta
Sun 7/57:35 am
TYS
- SJU
1 stop5h 56m
Delta
Deal found 6/23![Delta logo]()
$656
Last-minute flights from Puerto Rico to KnoxvilleDiscover last-minute flight deals from Puerto Rico to Knoxville. Data last updated June 26, 2026 and is based on user searches.
Discover last-minute flight deals from Puerto Rico to Knoxville. Data last updated June 26, 2026 and is based on user searches.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:00 am
SJU
- TYS
1 stop10h 12m
Multiple Airlines
Tue 7/75:00 pm
TYS
- SJU
1 stop23h 05m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$528
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/26:16 pm
SJU
- TYS
1 stop29h 17m
Multiple Airlines
Thu 7/93:44 pm
TYS
- SJU
1 stop11h 15m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$456
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 7/35:15 pm
SJU
- TYS
1 stop29h 42m
Multiple Airlines
Sat 7/118:40 pm
TYS
- SJU
1 stop19h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 6/24. 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 7/136:00 am
SJU
- TYS
1 stop8h 48m
Delta
Wed 7/151:59 pm
TYS
- SJU
1 stop8h 31m
Delta
Deal found 6/24![Delta logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Wed 7/156:00 am
SJU
- TYS
1 stop11h 59m
Multiple Airlines
Wed 7/298:19 pm
TYS
- SJU
2 stops28h 09m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 6/25. 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 7/215:50 pm
SJU
- TYS
1 stop6h 02m
Delta
Thu 7/303:54 pm
TYS
- SJU
1 stop6h 35m
Delta
Deal found 6/25![Delta logo]()
$544
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.
Wed 7/226:00 am
SJU
- TYS
1 stop11h 59m
Multiple Airlines
Wed 7/298:19 pm
TYS
- SJU
2 stops14h 24m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$539
One-way flights from Puerto Rico to KnoxvilleSearch for one-way flight options from Puerto Rico to Knoxville. Find affordable one-way fares based on user searches. Data last updated June 26, 2026.
Search for one-way flight options from Puerto Rico to Knoxville. Find affordable one-way fares based on user searches. Data last updated June 26, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:39 pm
SJU
- TYS
1 stop18h 05m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$123
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:30 am
SJU
- TYS
1 stop8h 18m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$124
This Delta deal was found by Cheapflights users on 6/24. 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.
Fri 8/282:59 pm
SJU
- TYS
1 stop7h 01m
Delta
Deal found 6/24![Delta logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Fri 7/176:30 am
SJU
- TYS
1 stop15h 30m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$162
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.
Fri 8/216:44 am
SJU
- TYS
1 stop11h 51m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:44 am
SJU
- TYS
1 stop13h 37m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$187
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:52 am
SJU
- TYS
1 stop14h 41m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$192
This United Airlines deal was found by Cheapflights users on 6/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:55 pm
SJU
- TYS
1 stop7h 04m
United Airlines
Deal found 6/25![United Airlines logo]()
$194
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:30 am
SJU
- TYS
1 stop15h 30m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$200
Find flight deals from Puerto Rico to Knoxville
Keep the following information in mind while searching for Puerto Rico to Knoxville flight deals. Data was last updated June 26, 2026.
Round-trip from | $296 (Kiwi.com) |
|---|---|
One-way from | $123 (Kiwi.com) |
Popular in | March |
Cheapest in | February |
Average price | $557 |
Cheapflights Fare Finder
Customize your flight search to find flights from Puerto Rico 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 June 26, 2026.
Use the filters below to find and compare flights from Puerto Rico to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Fri 8/7
5:49 pm-11:52 pm
1 stop6h 03m
Knoxville McGhee Tyson
Mon 8/10
12:01 pm-10:29 pm
1 stop10h 28m
$446
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Fri 8/14
6:30 am-6:35 pm
2 stops12h 05m
Knoxville McGhee Tyson
Fri 8/21
2:05 pm-11:50 pm
2 stops9h 45m
$451
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Wed 7/15
6:00 am-5:59 pm
1 stop11h 59m
Knoxville McGhee Tyson
Wed 7/29
1:05 pm-4:05 pm
1 stop27h 00m
$533
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Tue 7/21
5:50 pm-11:52 pm
1 stop6h 02m
Knoxville McGhee Tyson
Thu 7/30
3:54 pm-10:29 pm
1 stop6h 35m
$544
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Sat 8/1
5:00 am-4:40 pm
2 stops11h 40m
Knoxville McGhee Tyson
Mon 8/10
8:25 am-8:05 pm
2 stops11h 40m
$594
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Fri 8/14
4:55 pm-11:59 pm
1 stop7h 04m
Knoxville McGhee Tyson
Mon 8/17
5:45 am-12:54 pm
1 stop7h 09m
$634
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Fri 7/17
2:55 pm-11:12 pm
1 stop8h 17m
Knoxville McGhee Tyson
Sat 7/25
6:00 am-2:44 pm
1 stop8h 44m
$636
Quickest round-trip
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Tue 6/30
5:56 pm-11:54 pm
1 stop5h 58m
Knoxville McGhee Tyson
Sun 7/5
7:35 am-1:31 pm
1 stop5h 56m
$656
Cheapest one-way
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Fri 8/28
3:47 pm-10:58 pm
1 stop7h 11m
$149
Quickest one-way
San JuanKnoxville
SJU - TYS
SJUTYS
San Juan Luis Munoz Marin Intl
Fri 8/28
2:59 pm-10:00 pm
1 stop7h 01m
$149
Showing 1-10 of 17 resultsSorted by cheapest first
Best time to book a flight from Puerto Rico to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Puerto Rico with our price prediction graph.
SJU-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 Puerto Rico to Knoxville
PR0-TYS
SJU-TYS
What is the cheapest month to book a flight from Puerto Rico to Knoxville?
Currently, January is the cheapest month in which you can book a flight from Puerto Rico to Knoxville (average of $241). Flying from Puerto Rico to Knoxville in March is currently the most expensive (average of $455). 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 far ahead should I book a flight from Puerto Rico to Knoxville?
Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Puerto Rico to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 June 26, 2026.
Read through reviews of airlines operating flights from Puerto Rico to Knoxville, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Puerto Rico 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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Knoxville flight routes
Other flight options
Popular flights
Alternative routes for Puerto Rico to Knoxville
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Knoxville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Puerto Rico to Knoxville by cabin class
Find flights from Puerto Rico to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 June 26, 2026.
Puerto Rico and Knoxville flights
Browse other Puerto Rico and Knoxville flight options. Last updated on June 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Puerto Rico to Knoxville
Discover the top 4 airlines that operate flights from Puerto Rico 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 June 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$345 | Average$502 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$347 | Average$456 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$390 | Average$575 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$415 | Average$525 | FlexibilityNo cancel fee | On-timeN/A |