TYS - SJU

$111 Find Cheap Flights from Knoxville to San Juan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to San Juan departing on 7/14. 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 San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Juan, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$226
Typical prices: $505-$641
Multiple Airlines
Fri 8/14Thu 8/20
TYS - SJU • 1 stop
Cheapest one-way
$111
Typical prices: $273-$358
Multiple Airlines
Tue 7/14
TYS - SJU • 1 stop
Top airlines
Cheapest • from $298 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Knoxville and San Juan. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $565 (round-trip)
Shortest trip • 6h 12m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
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 San Juan!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knoxville to San Juan (TYS-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to San Juan 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 Knoxville to San Juan

Fri, Aug 14 - Thu, Aug 20
Multiple Airlines Logo
7:15 pm - 12:41 am
TYS
-
SJU
29h 26m
1 stop
Multiple Airlines Logo
7:00 am - 4:25 pm
SJU
-
TYS
9h 25m
1 stop
$226Multiple Airlines
Mon, Aug 17 - Thu, Aug 20
Multiple Airlines Logo
7:15 pm - 12:56 am
TYS
-
SJU
29h 41m
1 stop
Multiple Airlines Logo
7:00 am - 4:25 pm
SJU
-
TYS
9h 25m
1 stop
$236Multiple Airlines
Fri, Aug 14 - Tue, Aug 18
Multiple Airlines Logo
7:15 pm - 12:41 am
TYS
-
SJU
29h 26m
1 stop
Multiple Airlines Logo
6:45 am - 10:04 am
SJU
-
TYS
27h 19m
1 stop
$244Multiple Airlines
Fri, Aug 14 - Mon, Aug 17
Multiple Airlines Logo
7:15 pm - 12:41 am
TYS
-
SJU
29h 26m
1 stop
Multiple Airlines Logo
6:26 am - 10:24 pm
SJU
-
TYS
15h 58m
1 stop
$245Multiple Airlines
Fri, Aug 14 - Wed, Aug 19
Multiple Airlines Logo
7:15 pm - 12:41 am
TYS
-
SJU
29h 26m
1 stop
Multiple Airlines Logo
6:45 am - 10:04 am
SJU
-
TYS
27h 19m
1 stop
$246Multiple Airlines
Sun, Aug 16 - Thu, Aug 20
Multiple Airlines Logo
8:15 am - 12:41 am
TYS
-
SJU
16h 26m
1 stop
Multiple Airlines Logo
7:00 am - 4:25 pm
SJU
-
TYS
9h 25m
1 stop
$249Multiple Airlines
Thu, Aug 13 - Thu, Aug 20
Multiple Airlines Logo
8:15 am - 12:41 am
TYS
-
SJU
16h 26m
1 stop
Multiple Airlines Logo
7:00 am - 4:25 pm
SJU
-
TYS
9h 25m
1 stop
$255Multiple Airlines
Sat, Aug 15 - Mon, Aug 17
Multiple Airlines Logo
12:54 pm - 12:41 am
TYS
-
SJU
11h 47m
1 stop
Multiple Airlines Logo
6:26 am - 10:24 pm
SJU
-
TYS
15h 58m
1 stop
$263Multiple Airlines
Mon, Aug 17 - Sun, Aug 23
Multiple Airlines Logo
8:35 am - 12:41 am
TYS
-
SJU
16h 06m
1 stop
Multiple Airlines Logo
7:00 am - 4:25 pm
SJU
-
TYS
9h 25m
1 stop
$267Multiple Airlines
Sat, Aug 15 - Sun, Aug 23
Multiple Airlines Logo
12:54 pm - 12:41 am
TYS
-
SJU
11h 47m
1 stop
Multiple Airlines Logo
7:00 am - 4:25 pm
SJU
-
TYS
9h 25m
1 stop
$275Multiple Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to San Juan flights

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

How much is a round-trip flight from Knoxville to San Juan Luis Munoz Marin Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to San Juan Luis Munoz Marin Intl Airport departing in August.

What is the cheapest month to fly from Knoxville to San Juan Luis Munoz Marin Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to San Juan Luis Munoz Marin Intl Airport, 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 from Knoxville to San Juan Luis Munoz Marin Intl Airport is September, where tickets cost $456 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $761 and $650 respectively.

Good to know

Low seasonFebruary
Cheapest flight$111
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Knoxville to San Juan

When to book flights from Knoxville to San Juan

Are your dates flexible? Find out the best times to travel from Knoxville to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Knoxville to San Juan flights

  • What is the cheapest flight from Knoxville to San Juan Luis Munoz Marin Intl Airport?

    In the last 5 days, the lowest price for a flight from Knoxville to San Juan Luis Munoz Marin Intl Airport was $111 for a one-way ticket and $278 for a round-trip.

  • Do I need a passport to fly between Knoxville and San Juan?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Knoxville and on arrival in San Juan.

  • Which aircraft models fly most regularly from Knoxville to San Juan?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to San Juan?

    SkyTeam, and oneworld are the airline alliances operating flights between Knoxville and San Juan, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to San Juan, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Knoxville to San Juan are Southwest and Delta. With an average price for the route of $516 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $501 and an overall rating of 7.8.

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

    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 from Knoxville to San Juan.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from 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 from Knoxville to San Juan?

    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 San Juan with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and SJU can sometimes prove cheaper using this method.

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

    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 San Juan from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Knoxville to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to San Juan? 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 4246 reviews
7.5Entertainment
7.0Food
8.6Crew
8.0Comfort
8.1Boarding
Airline reviews

I'm glad it wasn't only 75% full because I could get a good seat

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

I'm glad it wasn't only 75% full because I could get a good seat

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Still need to work out the kinks on the new assigned seating boarding process. Otherwise, a very good flight.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

No space for our carryon and needed to check at plane before boarding !

Flight attendants were in a bad mood and we were late

it was great. the crew is exceptional. the flight was on time.

I was in Comfort and we didn’t get any drinks, chips or anything! First Class got full service on the flight and Comfort got nothing. Seat was horrible and uncomfortable

Short trip, no food and therefore no expectation for much interaction with staff who were pleasant and professional. My critique is on comfort of the seats. Exit rows and comfort seats do not provide enough personal space for 3 side-by-side seats, especially when in the middle row. Some passengers are not considerate of the middle seat and there should be signs that state something to the effect of: "please consider giving middle seats use of the armrests."

The tray table was broken and the food was terrible.

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

It was good. The leg room was not great in Row 1.

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

When we checked in my friend and I were sitting seperate. By the time we got to boarding, they automatically switched our seats. I really liked that.

I trust Delta. I travel comfortable. The snacks could improve or could go to something as a little sandwich.

Delayed delayed. Poor professionalism. Our seats changed and we pay for them

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The plane was broken so we had to change planes.

Uncomfortable seats and flight attendant was rude as she insisted on waking up my husband to ask him if he wanted a drink. When he said that he was sleeping, she replied “without an attitude “. He was seated at 8c

I didn’t like anything, being platinum pro get you absolutely nowhere and does not increase the customer service treatment whatsoever anymore. My flight was canceled and they put me on a flight eight hours later that would’ve got me back in the middle of the night. They could’ve easily move me up to an hour Prior on an earlier flight. My second flight was unreasonable to take, the third flight was also canceled due to mechanical issues like the first flight. I don’t know what’s going on with American, but they are falling apart, after seven flight changes I finally got home, Unreasonable.

This was a horrible American Airlines experience, and it discourages me from flying with them again. It may have stemmed from a mechanical delay, but it appeared that the team was unprepared to respond to the delay. After boarding, we waited an hour before finally taking off. After landing at our destination, we waited an additional hour on the tarmac waiting for a gate (at 8:00pm) to be assigned and cleared. The flight crew did their best, but they were clearly tired and also ready to be done for the day. Because of the delay, I missed a connecting flight. It was a very poor experience.

Airlines must do something with overweight people... Maybe reserve a business class seat for them, or you could pay the consequences if someone overweight seat side by side to you in economy.

Fantastic! If it had not been for a check-in agent in Knoxville I may have not gotten my passes on British Airways. I couldn’t check-in online because British Airways had messed us the info on my tickets to London & Inverness. AA’s was great! British Airways was a continuous series of delays and frustrations.

Everything you need to know for your flight from Knoxville to San Juan

Information on your arrival and departure airports