$178 Find Cheap Flights from Puerto Rico to Knoxville

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 6/5. 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

Thu, Aug 20 - Sun, Aug 23
Multiple Airlines Logo
7:00 am - 4:25 pm
SJU
-
TYS
9h 25m
1 stop
Multiple Airlines Logo
4:52 pm - 3:58 pm
TYS
-
SJU
23h 06m
1 stop
$346Multiple Airlines
Thu, Jul 23 - Mon, Jul 27
Multiple Airlines Logo
6:00 am - 2:48 pm
SJU
-
TYS
8h 48m
1 stop
Multiple Airlines Logo
12:40 pm - 2:00 pm
TYS
-
SJU
25h 20m
1 stop
$373Multiple Airlines
Thu, Jul 23 - Mon, Jul 27
Multiple Airlines Logo
6:00 am - 2:48 pm
SJU
-
TYS
8h 48m
1 stop
Multiple Airlines Logo
7:20 pm - 3:58 am
TYS
-
SJU
32h 38m
2 stops
$395Multiple Airlines
Fri, Jul 3 - Mon, Jul 6
Multiple Airlines Logo
7:00 am - 10:00 pm
SJU
-
TYS
15h 00m
1 stop
Multiple Airlines Logo
12:40 pm - 2:00 pm
TYS
-
SJU
25h 20m
1 stop
$401Multiple Airlines
Wed, Oct 21 - Sat, Oct 24
Multiple Airlines Logo
5:12 pm - 8:05 am
SJU
-
TYS
14h 53m
1 stop
Multiple Airlines Logo
4:41 pm - 11:41 pm
TYS
-
SJU
7h 00m
1 stop
$410Multiple Airlines
Wed, Oct 21 - Sat, Oct 24
Multiple Airlines Logo
5:12 pm - 8:05 am
SJU
-
TYS
14h 53m
1 stop
Multiple Airlines Logo
4:41 pm - 11:41 pm
TYS
-
SJU
7h 00m
1 stop
$411Multiple Airlines
Fri, Jul 3 - Mon, Jul 6
Multiple Airlines Logo
7:00 am - 10:00 pm
SJU
-
TYS
15h 00m
1 stop
Multiple Airlines Logo
7:20 pm - 11:58 pm
TYS
-
SJU
28h 38m
2 stops
$416Multiple Airlines
Thu, Sep 24 - Mon, Sep 28
Multiple Airlines Logo
8:30 am - 4:48 pm
SJU
-
TYS
8h 18m
1 stop
Multiple Airlines Logo
5:40 pm - 3:25 pm
TYS
-
SJU
21h 45m
2 stops
$419Multiple Airlines
Fri, Sep 4 - Tue, Sep 8
Southwest Logo
5:30 am - 5:10 pm
SJU
-
TYS
11h 40m
2 stops
Southwest Logo
7:00 am - 4:25 pm
TYS
-
SJU
9h 25m
2 stops
$426Southwest
Thu, Sep 24 - Mon, Sep 28
Southwest Logo
5:30 am - 5:10 pm
SJU
-
TYS
11h 40m
2 stops
Southwest Logo
8:25 am - 8:05 pm
TYS
-
SJU
11h 40m
2 stops
$428Southwest
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.

What is the cheapest flight to Knoxville?

These are the best round-trip prices found by users searching on KAYAK in the last 7 days.

In the last 7 days, the cheapest flight deal to Knoxville was found on the route from San Juan, at $346 return. The most popular connection is from Orlando to Knoxville and KAYAK users have found round-trip deals for as low as $96 in the last 7 days.

What is the cheapest month to fly to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Knoxville is February, where tickets cost $415 on average for return flights. On the other hand, the most expensive months are March and November, where the average cost of tickets from Puerto Rico is $636 and $565 respectively. For one-way flights, the best month to travel is February with an average price of $415.

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 6 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$178
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from San Juan to Knoxville

FAQs - booking Knoxville flights

  • What is the cheapest flight to Knoxville?

    In the last 7 days, the cheapest flight deal to Knoxville was found on the route from San Juan, at $346 return. The most popular connection is from Orlando to Knoxville and KAYAK users have found round-trip deals for as low as $96 in the last 7 days.

  • 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 1,359 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 3 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
DeltaOverall score based on 8425 reviews
8.5Crew
8.1Boarding
7.8Comfort
7.2Food
7.8Entertainment
Airline reviews

Flight was delayed. Then eventually cancelled. The female staff that was announcing overhead was unprofessional. She was telling everyone that the company is not going to give any money for taxi, hotel etc. then eventually the flight was cancelled.

2.0 MediocreRohan, May 2026
SDQ - JFK
Read more Delta reviews

Flight was delayed. Then eventually cancelled. The female staff that was announcing overhead was unprofessional. She was telling everyone that the company is not going to give any money for taxi, hotel etc. then eventually the flight was cancelled.

My service light was on 15 minutes before I had to get up and find a glass of ice. And I was in business class. The meals were not for either my wife and I. She did not eat the entire 10 hour flight and I managed a bowl of soup. I was expecting much more from business with what we paid.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Broken tray table. Erratic service. Premium economy is more economy than premium- other airlines treat PE much better. No lounge access.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

We had a delay, but thankfully I made it to my connection. Overall it went smooth

The flight had a delay but I made it to my connection. Flight was smooth overall

As I wrote earlier, poor planning and/or communication. At least twice, we were told that we would be boarding in less than ten minutes, only to have the flight again delayed at least another hour.

Our flight from Nice to Newark ran an hour late, and the food was mediocre, but it was fine. The problem was that we were scheduled to have a 4.5-hour layover in Newark, but then our flight to RDU was almost four hours late, finally departing at almost 11:30 p.m. We understand that flight delays were caused by weather problems in the East. However, there were at least two times, when were told that we would begin boarding in just a few minutes, only to have the flight delayed another 1.0-1.5 hours. This meant that we would leave a restaurant or the United Club, go to the gate, only to learn that there would be another major delay. Poor planning and/or communication.

This flight is a quick way to get to Chicago, but a bit expensive.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

They lost my baggage and I am still struggling to the information and update

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

There were flight delays making our flight arrive at our destination after midnight didn’t seem to have enough crew or airplanes for the flights laid over in Dallas should’ve had plenty of time to make it to our next flight only made it because that flight was also delayed because our plane wasn’t even at the airport yet overall have not had a good experience on American

Flight left on time. Captain provided relevant announcements. We had to wait 45 minutes to desembark due to the ramp closed because of lightening.

The homeless eat better than what was served on that plane. Pretzels and ice cream? My last trip to Europe. Everything is small, but the bill.

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Everything you need to know for your flight to Knoxville

Information on the airport you'll fly into in Knoxville