$183 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 3/11. 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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Everything you should know

Cheapest round-trip
$351
Overall average: $577
Multiple Airlines
Wed 3/4Sun 3/8
SJU - TYS • 1 stop
Cheapest one-way
$183
Typical prices: $318-$356
Multiple Airlines
Wed 3/11
SJU - TYS • 2 stops
When to travel
February
Cheapest • 17% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Knoxville!
Flight Deals
Booking Insights
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

Wed, Mar 4 - Sun, Mar 8
Multiple Airlines Logo
6:00 am - 6:26 pm
SJU
-
TYS
13h 26m
1 stop
Multiple Airlines Logo
7:20 am - 10:09 pm
TYS
-
SJU
38h 49m
2 stops
$351Multiple Airlines
Sat, Feb 28 - Wed, Mar 4
Multiple Airlines Logo
7:05 am - 8:18 pm
SJU
-
TYS
14h 13m
2 stops
Multiple Airlines Logo
2:05 pm - 12:43 am
TYS
-
SJU
9h 38m
1 stop
$358Multiple Airlines
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
4:36 pm - 11:27 pm
SJU
-
TYS
7h 51m
1 stop
Multiple Airlines Logo
7:20 am - 1:58 am
TYS
-
SJU
42h 38m
2 stops
$367Multiple Airlines
Tue, Mar 17 - Fri, Mar 20
Multiple Airlines Logo
7:54 pm - 10:40 am
SJU
-
TYS
14h 46m
1 stop
Multiple Airlines Logo
2:06 pm - 9:59 pm
TYS
-
SJU
7h 53m
1 stop
$370Multiple Airlines
Wed, Mar 4 - Sun, Mar 8
Multiple Airlines Logo
3:30 pm - 12:02 pm
SJU
-
TYS
21h 32m
1 stop
Multiple Airlines Logo
9:42 pm - 2:31 pm
TYS
-
SJU
16h 49m
1 stop
$388Multiple Airlines
Wed, Apr 29 - Sun, May 3
American Airlines Logo
4:30 pm - 8:32 am
SJU
-
TYS
16h 02m
1 stop
American Airlines Logo
5:00 am - 10:48 am
TYS
-
SJU
5h 48m
1 stop
$396American Airlines
Wed, May 20 - Sat, Jun 6
Southwest Logo
8:10 am - 7:40 pm
SJU
-
TYS
11h 30m
2 stops
Southwest Logo
1:35 pm - 11:00 pm
TYS
-
SJU
9h 25m
1 stop
$397Southwest
Tue, Mar 24 - Tue, Mar 31
Delta Logo
6:15 am - 4:06 pm
SJU
-
TYS
9h 51m
1 stop
Delta Logo
5:40 am - 11:46 am
TYS
-
SJU
6h 06m
1 stop
$401Delta
Wed, Apr 29 - Sun, May 3
American Airlines Logo
7:25 am - 10:24 pm
SJU
-
TYS
14h 59m
1 stop
American Airlines Logo
5:00 am - 10:48 am
TYS
-
SJU
5h 48m
1 stop
$403American Airlines
Tue, May 26 - Thu, May 28
Southwest Logo
11:25 am - 5:10 pm
SJU
-
TYS
5h 45m
1 stop
Southwest Logo
12:15 pm - 8:00 pm
TYS
-
SJU
7h 45m
1 stop
$411Southwest
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 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 one-way flights. On the other hand, the most expensive months are July and March, where the average cost of tickets from Puerto Rico is $600 and $577 respectively. For return trips, 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 days before departure.

Good to know

Low seasonSeptember
Cheapest flight$183
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 8% lower on average.
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 659 direct flights from within Puerto Rico to Knoxville. The most common day for departures is Thursday, with 17% 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 airlines flying 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 8207 reviews
7.9Comfort
7.8Entertainment
8.5Crew
8.1Boarding
7.2Food
Airline reviews

First flight out and was 85 minutes delayed. Notification came out way too late

4.0 OkayJason, Feb 2026
SEA - SLC
Read more Delta reviews

First flight out and was 85 minutes delayed. Notification came out way too late

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Boarding was efficient and smooth. Departure time was on time. Arrival to Detroit was early. Average food . Average crew service Very average cabin comfort. Nothing spectacular one way ir another, except for the excellent on time performance.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Awful - both legs. The check in was awful, getting on the plane required walking down a spiral staircase (dangerous), then taking a bus about 5 miles out from the terminal. The seat was broken (I was in business), there was no internet during the flight (both legs). The aircraft was very old. I saw rust in some place, tape holding things up in the bathroom. This was an unacceptable experience for such a long haul flight.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

No Snacks or Entertainment. The flight was short, snacks should still be given.

We lost a day of our vacation because AA did not get the plane to the gate on time. Even though the gate attendant was very clear that it was not weather related, AA would do nothing because there was some snow that day. They basically said the gate attendant was wrong even though she was on the front line of the situation and they were not.

See prior comment about how Kayak mishandled my reservation and delayed my arrival by 6 hours.

American Airlines was great and worked very hard to change my ticket so I could get an earlier, direct flight back to Dallas. However, I was informed that Kayak made mistakes with my itinerary and classified my ticket as desiring to be on the earlier flight instead of taking the necessary step of calling AA to get me on the standby list. This ended up keeping me from being added to the standby list and delayed me getting home by 6 hours. I am happy to discuss this further with Kayak so they can correct their procedures so this won't happen again.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

Overall it was a good flight. Because we traveled on a Saturday we were upgraded to FC since my wife and I are both Executive Platinum. The only areas for improvement we noted are better snack assortment and perhaps a little nicer plane as American is flying some older planes now. Everything else on this flight was excellent, which is frankly not the norm for American since we have had multiple issues on prior AA flights.

The smell from the bathroom kept wafting through the cabin. It made people sick.

The flight was really crowded. Flight attendants were just ok.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Didn't get a seat assignment until the last minute even though i picked a seat.

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Newport
Lenoir City
Dandridge
Clinton
Jefferson City

Everything you need to know for your flight to Knoxville

Information on the airport you'll fly into in Knoxville