$123 Find Cheap Flights from Puerto Rico to Knoxville - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Knoxville departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Knoxville, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Puerto Rico to Knoxville

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Puerto Rico to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Puerto Rico to Knoxville

Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
6:26 am - 10:24 pm
SJU
-
TYS
15h 58m
1 stop
Multiple Airlines Logo
1:55 pm - 9:19 am
TYS
-
SJU
19h 24m
1 stop
$296Multiple Airlines
Wed, Oct 21 - Sat, Oct 24
Delta Logo
5:43 pm - 11:46 pm
SJU
-
TYS
6h 03m
1 stop
Delta Logo
8:47 am - 4:33 pm
TYS
-
SJU
7h 46m
1 stop
$298Delta
Wed, Nov 11 - Mon, Nov 16
American Airlines Logo
4:44 pm - 10:54 pm
SJU
-
TYS
7h 10m
1 stop
American Airlines Logo
5:05 am - 1:04 pm
TYS
-
SJU
6h 59m
1 stop
$299American Airlines
Fri, Aug 7 - Sun, Aug 9
Multiple Airlines Logo
6:00 am - 10:26 am
SJU
-
TYS
28h 26m
1 stop
Multiple Airlines Logo
7:45 am - 4:11 pm
TYS
-
SJU
8h 26m
1 stop
$309Multiple Airlines
Thu, Oct 15 - Fri, Oct 23
Multiple Airlines Logo
8:30 am - 6:40 pm
SJU
-
TYS
10h 10m
1 stop
Multiple Airlines Logo
9:28 pm - 11:41 pm
TYS
-
SJU
26h 13m
1 stop
$329Multiple Airlines
Fri, Sep 25 - Tue, Sep 29
Southwest Logo
5:30 am - 5:10 pm
SJU
-
TYS
11h 40m
2 stops
Southwest Logo
8:05 am - 7:00 pm
TYS
-
SJU
10h 55m
2 stops
$341Southwest
Sun, Oct 18 - Fri, Oct 23
Multiple Airlines Logo
8:30 am - 11:30 pm
SJU
-
TYS
15h 00m
1 stop
Multiple Airlines Logo
9:28 pm - 11:41 pm
TYS
-
SJU
26h 13m
1 stop
$344Multiple Airlines
Thu, Oct 15 - Sat, Oct 24
Multiple Airlines Logo
8:30 am - 6:40 pm
SJU
-
TYS
10h 10m
1 stop
Multiple Airlines Logo
4:41 pm - 11:41 pm
TYS
-
SJU
7h 00m
1 stop
$347Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
8:30 am - 11:30 pm
SJU
-
TYS
15h 00m
1 stop
Multiple Airlines Logo
4:41 pm - 11:41 pm
TYS
-
SJU
7h 00m
1 stop
$362Multiple Airlines
Thu, Nov 12 - Sat, Nov 14
Southwest Logo
6:05 am - 3:00 pm
SJU
-
TYS
9h 55m
2 stops
Southwest Logo
7:10 am - 7:15 pm
TYS
-
SJU
11h 05m
1 stop
$363Southwest
Booking Insights

KAYAK's insights & trends for flights to Knoxville

Get data-powered insights and trends for flights to Knoxville to help you find the cheapest flights, the best time to fly and much more.

How far in advance should I book a flight to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 7 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$123
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 19% increase in price.
Flight from San Juan to Knoxville

FAQs - booking Knoxville flights

  • How far is Knoxville McGhee Tyson Airport from central Knoxville?

    The distance between Knoxville McGhee Tyson Airport and downtown Knoxville is 11 miles.

  • What is the name of Knoxville’s airport?

    There is only 1 airport in Knoxville, called Knoxville McGhee Tyson Airport (TYS). It can also be referred to as Mc Ghee Tyson or McGhee Tyson.

  • How does KAYAK find such low prices on flights to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Knoxville are there each week?

    Each week there are around 1,403 direct flights from within Puerto Rico to Knoxville. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to Knoxville

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Knoxville flight deals.

Reviews of the top 4 airlines serving from Puerto Rico to Knoxville

 
See real verified KAYAK customer reviews for airlines flying to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Puerto Rico to Knoxville. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4245 reviews
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

8.0 ExcellentBobby, May 2026
MSY - BNA
Read more Southwest reviews

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Wi Fi was horrible kept cutting out the whole time and too expensive

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

Boarding was a little late, but made up for it. It was quick to taxi to the runway, since it's a smallish airport.

The flights are constantly late anymore, and they won't even give you a glass of water on the plane. For years, they were able to do a service on this flight from Atlanta to Knoxville and Knoxville Atlanta now they say it's too short of a flight. You can't even get a quick drink of water.

Should never have had to go to Detroit from Orlando back to Tennessee!

The seats were really comfortable. Flight crew were friendly with passengers. Overall was a great flight.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

Smallest leg room I've ever had on a plane.

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Kind staff. Snacks are small but that’s the new normal.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

Flight was great. DELTA did a fantastic job! ATL was busy, as usual!

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

We had excellent customer service despite the chaos at George Bush airport in Houston!

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

For some strange reason I was put in zone 5 for boarding even though I had paid premium price for a premium seat right behind business class. This must have been a flaw because everyone else around me in the same zone (row) had been placed in zone 3.

Would had been nice to see a movie without having to pay to watch

Delayed by 5 hours and I had to wit in the airport for more than 6+ hours.

technology worked well and everything ran smoothly. The seats are quite cramped so please don't try to re-engineer the cabin to squeeze more bodies on board.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Arrived early picked up my bag in a few minutes- great trip - thank you

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

The pilot greased the landing and the crew was fantastic.

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

At least it was a short flight. Greyhound with wings.

Our flight got changed and/or delayed 8 times before we boarded.

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Everything you need to know for your flight to Knoxville

Information on the airport you'll fly into in Knoxville