$148 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 12/23. 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
$264
Typical prices: $344-$536
Multiple Airlines
Fri 1/16Mon 1/19
SJU - TYS • 1 stop
Cheapest one-way
$148
Typical prices: $240-$275
Multiple Airlines
Tue 12/23
SJU - TYS • 1 stop
When to travel
January
Cheapest • 26% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Fri, Jan 16 - Mon, Jan 19
Multiple Airlines Logo
6:48 pm - 11:09 amSJU-TYS
17h 21m1 stop
Multiple Airlines Logo
7:15 am - 3:25 amTYS-SJU
19h 10m1 stop
$264Multiple Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
Multiple Airlines Logo
6:48 pm - 11:09 amSJU-TYS
17h 21m1 stop
Multiple Airlines Logo
7:15 am - 3:25 amTYS-SJU
19h 10m1 stop
$272Multiple Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
Multiple Airlines Logo
6:00 am - 7:56 pmSJU-TYS
14h 56m2 stops
Multiple Airlines Logo
7:15 am - 3:25 amTYS-SJU
19h 10m1 stop
$304Multiple Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
6:30 am - 9:37 pmSJU-TYS
16h 07m1 stop
Multiple Airlines Logo
5:23 pm - 11:56 pmTYS-SJU
29h 33m2 stops
$308Multiple Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
Multiple Airlines Logo
6:48 pm - 11:09 amSJU-TYS
17h 21m1 stop
Multiple Airlines Logo
12:55 pm - 2:48 amTYS-SJU
12h 53m1 stop
$316Multiple Airlines
Find Deal
Wed, Feb 11 - Sun, Feb 15
American Airlines Logo
6:00 am - 5:06 pmSJU-TYS
12h 06m1 stop
American Airlines Logo
7:06 pm - 10:07 amTYS-SJU
14h 01m1 stop
$337American Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 17
Multiple Airlines Logo
7:35 am - 3:28 pmSJU-TYS
32h 53m2 stops
Multiple Airlines Logo
5:59 pm - 12:32 pmTYS-SJU
17h 33m1 stop
$340Multiple Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 17
Multiple Airlines Logo
7:35 am - 3:28 pmSJU-TYS
32h 53m2 stops
Multiple Airlines Logo
5:59 pm - 12:32 pmTYS-SJU
17h 33m1 stop
$347Multiple Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 17
Multiple Airlines Logo
7:35 am - 3:28 pmSJU-TYS
32h 53m2 stops
Multiple Airlines Logo
5:59 pm - 12:32 pmTYS-SJU
17h 33m1 stop
$348Multiple Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
6:30 am - 9:37 pmSJU-TYS
16h 07m1 stop
Multiple Airlines Logo
7:11 pm - 12:45 amTYS-SJU
28h 34m1 stop
$349Multiple Airlines
Find Deal
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 January, where tickets cost $370 on average for one-way flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from Puerto Rico is $602 and $592 respectively. For return trips, the best month to travel is January with an average price of $370.

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 1 week before departure. For the absolute cheapest price, our data suggests you should book 25 days before departure.

Good to know

Low seasonSeptember
Cheapest flight$148
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 18% 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.

  • What is the cheapest day to fly to Knoxville?

    Based on KAYAK data, the cheapest day to fly to Knoxville is Monday where tickets can be as cheap as $394. On the other hand, the most expensive day to fly is Sunday, where prices are $592 on average.

  • 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.

  • What is the cheapest time of day to fly to Knoxville?

    The cheapest time of day to fly to Knoxville is generally at night, when flights cost $282 on average. The most expensive time of day to fly to Knoxville is generally in the evening, which is peak travel time and where the average cost of a ticket is $524.

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

    Each week there are around 741 direct flights from within Puerto Rico to Knoxville. The most common day for departures is Monday, 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 7998 reviews
8.1Boarding
7.9Comfort
7.9Entertainment
7.3Food
8.5Crew
Airline reviews

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

8.0 ExcellentDavid, Nov 2025FLL - BOS
Read more Delta reviews

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

the over had ligth did not work'd for the all way

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

The inflight staff is never the issue always the extra and charges american charges! Literally 30 bucks for WiFi! Is insane and then it’s choppy and slow. If you pay for it once you don’t need to pay again for switching aircraft especially when there is flight delays

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

flight was good until we arrived at cmh ten minutes early but then sat on tarmac for twenty minutes because a plane was at our gate, so we had to wait despite the pilot tellling us that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

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Everything you need to know for your flight to Knoxville

Information on the airport you'll fly into in Knoxville