$122 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 8/7. 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 - 2:59 am
TYS
-
SJU
13h 04m
1 stop
$289Multiple Airlines
Fri, Aug 21 - Mon, Aug 24
American Airlines Logo
10:33 am - 11:51 pm
SJU
-
TYS
13h 18m
1 stop
American Airlines Logo
6:03 am - 2:54 pm
TYS
-
SJU
8h 51m
1 stop
$305American Airlines
Fri, Aug 21 - Mon, Aug 24
Multiple Airlines Logo
6:45 am - 6:04 pm
SJU
-
TYS
11h 19m
1 stop
Multiple Airlines Logo
6:54 pm - 4:11 pm
TYS
-
SJU
21h 17m
1 stop
$322Multiple Airlines
Mon, Jul 13 - Thu, Jul 16
Multiple Airlines Logo
6:30 am - 10:00 pm
SJU
-
TYS
15h 30m
1 stop
Multiple Airlines Logo
8:15 am - 12:41 am
TYS
-
SJU
16h 26m
1 stop
$336Multiple Airlines
Sat, Sep 12 - Mon, Sep 14
Multiple Airlines Logo
5:12 pm - 10:04 am
SJU
-
TYS
16h 52m
1 stop
Multiple Airlines Logo
2:54 pm - 11:50 pm
TYS
-
SJU
8h 56m
1 stop
$342Multiple Airlines
Mon, Jul 13 - Thu, Jul 16
Multiple Airlines Logo
3:36 pm - 3:30 pm
SJU
-
TYS
23h 54m
2 stops
Multiple Airlines Logo
8:15 am - 12:41 am
TYS
-
SJU
16h 26m
1 stop
$358Multiple Airlines
Fri, Aug 21 - Mon, Aug 24
Multiple Airlines Logo
6:45 am - 6:04 pm
SJU
-
TYS
11h 19m
1 stop
Multiple Airlines Logo
6:54 pm - 2:16 pm
TYS
-
SJU
19h 22m
2 stops
$376Multiple Airlines
Wed, Nov 11 - Mon, Nov 16
American Airlines Logo
10:29 am - 10:54 pm
SJU
-
TYS
13h 25m
2 stops
American Airlines Logo
6:18 pm - 9:39 am
TYS
-
SJU
14h 21m
2 stops
$380American Airlines
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
5:15 pm - 10:26 am
SJU
-
TYS
17h 11m
2 stops
Multiple Airlines Logo
1:55 pm - 2:59 am
TYS
-
SJU
13h 04m
1 stop
$381Multiple Airlines
Wed, Nov 11 - Mon, Nov 16
American Airlines Logo
6:00 am - 4:38 pm
SJU
-
TYS
11h 38m
2 stops
American Airlines Logo
6:18 pm - 9:39 am
TYS
-
SJU
14h 21m
2 stops
$382American Airlines
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$122
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 1,346 direct flights from within Puerto Rico to Knoxville. The most common day for departures is Friday, 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 4241 reviews
7.5Entertainment
8.6Crew
8.0Comfort
8.1Boarding
7.0Food
Airline reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

6.0 GoodSteven, Jun 2026
LAS - ONT
Read more Southwest reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

Over a 3 hour flight. The turbulence was almost imperceptible except for 2 short periods which were not bad and over quickly. The attendants claimed "Safety first" and sat looking at their phones for 3 hours with no drink or snack service. This isn't the first time with Southwest. I thinkit may be there new plan of operation. Oh, and it was June 18, Southwest's Birthday which offered free drinks. NOT.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

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.

Flight got canceled 4 times, missed my connecting flight due to delays, have to wait to go home tomorrow

Third flight in two months where the crew was not there. Comfort seating does not guarantee overhead bin space. Passengers with children are allowed on the plane first - if you are flying to and from Orlando, this means half the plane has boarded before you get on. And somehow all the bin space is taken up. 3 out of 5 flights have had issues with equipment or procedure. Some of these instances caused the flight to be delayed because of a "nuisance" light. One time it was a bag that had been brought on board but did not belong to anyone so we had to return to the gate. Last night we were told the "AC" on the plane doesn't work well and we're 10th for take off- because the crew was late - and that it will get cool when we're in the air. Not sure if this is usual, but I didn't think flight crew could jump seat in first class. Movie and TV selection has not been refreshed for several months- flying one to two round trips each month easily exhausts the list of content.

Great experience nice pilot very soft and easy landing and take off

We sat on the runway for over an hour before departure. That was unwelcome.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Crew helpful. Plenty of food although not great but ok. Good time.

The crew was the worst ive ever had in my life flying with United Airlines, letting another person move my bag without asking and then the staff saying would the floor be better after I kept begging saying dont move my bag it has fragile things inside. This incident truly makes me they favor other customers more and I dont want to worry about being on the tail end. Especially if they dont listen any input, no care for what I asked but accommodated those who are reckless and disturb others more...

For the expense of first class, the seats could have been nicer and higher tier snacks would have been nice.

The boarding process on the departure from LA was rather slow even though I was in Group 1. For first class, I was not expecting to have to pay for Wi-fi but I did and then the wi-fi was spotty. The entree was surprisingly good and so that was a pleasant surprise. However, once I got to Houston, it was terrible. Unfortunately there was bad weather but the constant gate changes for my connecting flight was difficult to manage due to having to navigate back and forth between different terminals.

United has been holding my money for a cancel on another ticket they wouldn’t let me fly for going on 5 months. Terrible service I wouldn’t choose to buy tickets or fly with united again. Very bad experience generally dishonorable and poor service .

The seats were very nice in premium economy. The service was good. The flight was slightly bumpy. Would have appreciated more updates from the pilots.

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.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Prefer not to have an almost 3 hour delay with useless communication that wasn't accurate.

Flight cancelled. Twice. And no communication. No gate agent. Went past boarding time and had to go and see email from AA. Airport communication was bad

I love the e fact that the staff communicated swiftly when my flight was delayed and gate number changed

It was awful. The communication between corporate and the crew on the ground left more to be desired. The crew even said that Corporate was waiting on answers because they themselves didn't know. Every hour, there was a new excuse. I also understood that passengers were angry, but the crew should have done a better job at crowd control. There was a racial exchange between passengers that could've been avoided has the crew acted sooner.

Delayed and horrible communication and sat on flight for an hour before taking off

I was a Wheelchair Assist’ passenger on a London Heathrow to PHL flight yesterday. The process of getting me and my carry-on bag from the ticket counter to the gate was not good at all. It was the worst in my 5 years of experience using this service offered by American. The Philadelphia ‘Wheelchair Assist’ service was, and always has been Excellent! Not so at Heathrow. I was handed off to three different wheelchair drivers; had to sit in a very dingy holding area for 30 minutes while waiting for our gate change announcement; got crammed into a overloaded service vehicle to take me from the holding area to the gate ; was dumped at the end of the line of already-boarding passengers with my heavy carryon and no one helped me up the ramp way at the gate to board the plane. Overall it was a miserable experience!

Flight was delayed three times and we had an international connecting flight which we would’ve missed but AA manage to find us a flight that allowed us to catch and we made our international flight. However, due to the flight change, I’m in Amman, Jordan missing all 4 bags. It’s been a nightmare. Been waiting since June 17 and today is June 20th. Still without luggage. Customer service wait times are two hours and I get disconnected while waiting. I’ll update when/if my luggage arrives. Every day is costing money in a hotel in Amman. I can’t continue my trip to Palestine until the luggage arrives. Then, I will be updating my review.

They did not offer coffee on a 7am flight…awful!!

Plane temperature was so hot that everyone on the plane was sweating. Departure gates changed 3 times in the hour before the flight. Internet service was so poor in the terminal that updates weren't always being received.

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

Check in for 5am flight at RDU was hampered by American check in counters being seriously understaffed , was told even supervisor called out. Took so long in line for special services check in that we missed our 5am departure even after arriving at 3:30am. Had to be rescheduled to later flight from Charlotte to St Thomas.

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