SAT - TYS

$109 Find Cheap Flights from San Antonio 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 from San Antonio to Knoxville departing on 11/19. 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

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 in flight searches from San Antonio to Knoxville, 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 San Antonio to Knoxville, as well as popular online travel agencies
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Flights Deals

Cheap Flights from San Antonio to Knoxville (SAT-TYS)

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

Tue, Sep 30 - Tue, Oct 7
American Airlines Logo
5:16 pm - 12:21 amSAT-TYS
6h 05m1 stop
American Airlines Logo
5:08 pm - 10:56 pmTYS-SAT
6h 48m1 stop
$217American Airlines
Find Deal
Thu, Aug 28 - Sat, Sep 6
American Airlines Logo
6:00 am - 11:30 amSAT-TYS
4h 30m1 stop
American Airlines Logo
4:37 pm - 11:00 pmTYS-SAT
7h 23m1 stop
$233American Airlines
Find Deal
Wed, Sep 3 - Wed, Sep 10
Delta Logo
8:00 am - 1:08 pmSAT-TYS
4h 08m1 stop
Delta Logo
5:45 am - 9:40 amTYS-SAT
4h 55m1 stop
$237Delta
Find Deal
Tue, Sep 2 - Wed, Sep 10
Delta Logo
8:00 am - 1:08 pmSAT-TYS
4h 08m1 stop
Delta Logo
5:45 am - 9:40 amTYS-SAT
4h 55m1 stop
$243Delta
Find Deal
Fri, Sep 26 - Tue, Sep 30
United Airlines Logo
1:05 pm - 10:50 pmSAT-TYS
8h 45m1 stop
United Airlines Logo
9:30 am - 1:15 pmTYS-SAT
4h 45m1 stop
$246United Airlines
Find Deal
Sat, Aug 23 - Sun, Aug 31
Delta Logo
12:05 pm - 5:09 pmSAT-TYS
4h 04m1 stop
Delta Logo
5:45 am - 10:28 amTYS-SAT
5h 43m1 stop
$248Delta
Find Deal
Fri, Sep 5 - Thu, Sep 11
Delta Logo
5:10 am - 11:34 amSAT-TYS
5h 24m1 stop
Delta Logo
4:13 pm - 7:28 pmTYS-SAT
4h 15m1 stop
$249Delta
Find Deal
Tue, Aug 19 - Sat, Aug 23
United Airlines Logo
2:25 pm - 7:53 pmSAT-TYS
4h 28m1 stop
United Airlines Logo
7:00 am - 3:26 pmTYS-SAT
9h 26m2 stops
$264United Airlines
Find Deal
Thu, Aug 28 - Fri, Sep 5
 Logo
5:53 pm - 9:10 pmSAT-TYS
26h 17m2 stops
 Logo
8:49 pm - 7:32 pmTYS-SAT
23h 43m3 stops
Fri, Oct 17 - Tue, Oct 21
 Logo
5:00 pm - 11:36 pmSAT-TYS
5h 36m1 stop
 Logo
11:23 am - 4:55 amTYS-SAT
18h 32m2 stops
Booking Insights

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

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

What’s the cheapest day of the week to fly from San Antonio to Knoxville?

The average price of all round-trip flights from San Antonio to Knoxville clicked on KAYAK for each day over the last 12 months.

When flying from San Antonio to Knoxville, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to San Antonio, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from San Antonio to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio 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 from San Antonio to Knoxville is January, where tickets cost $258 (return) on average. On the other hand, the most expensive months are March and November, where the average cost of round-trip tickets is $459 and $408 respectively.

How far in advance should I book a flight from San Antonio to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Antonio 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 on the flight from San Antonio to Knoxville, you should book around 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$109
Best time to beat the crowds but there is an average 28% increase in price.
Most popular time to fly with an average 14% increase in price.
Flight from San Antonio to Knoxville

When to book flights from San Antonio to Knoxville

Are your dates flexible? Find out the best times to travel from San Antonio to Knoxville 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 flights from San Antonio to Knoxville

  • What is the cheapest flight from San Antonio to Knoxville?

    In the last 3 days, the lowest price for a flight from San Antonio to Knoxville was $109 for a one-way ticket and $217 for a round-trip.

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

    No, a passport isn't needed to fly from San Antonio to Knoxville. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from San Antonio to Knoxville?

    San Antonio and Knoxville are both served by 1 main airport. You will leave San Antonio from San Antonio and will be arriving at Knoxville McGhee Tyson.

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

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

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

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

  • Which is the best airline for flights from San Antonio to Knoxville, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Antonio to Knoxville are Delta and United Airlines. With an average price for the route of $341 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $408 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Antonio 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 from San Antonio to Knoxville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from San Antonio 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 San Antonio 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 to San Antonio with another airline. Booking your flights between San Antonio and TYS 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 San Antonio 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 from San Antonio 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 San Antonio to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to Knoxville. 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 San Antonio 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.
8.0
DeltaOverall score based on 7987 reviews
7.9Comfort
7.3Food
8.5Crew
8.2Boarding
7.9Entertainment
Airline reviews

Having to up charge for a seat assignment is not good. Delta can do better

8.0 ExcellentJacob, Aug 2025SLC - LWS
Read more Delta reviews

Having to up charge for a seat assignment is not good. Delta can do better

I liked the friendliness of the staff. The cleanliness of all 3 planes.

Was charged for my luggage despite having been on one ticket from an international flight. Too tired to argue after 15 hours on flight. Was charged for rechecking it at JFK airport. Not sure why those off Kenya Airways were required to do that.

De planning was an absolute mess. We were never told that we weren’t at the gate and that we had to go down unstable stairs and then hop on a bus. People were falling, we couldn’t tell who was in charge. Overall terrible communication that ended up leaving a bad impression at the very end of the experience.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Overall it was good. I missed my connection but I was put on another flight.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Food choices were very limited. Taste of the dishes was average.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

How badly can you screw up baggage claim? We were told to go to baggage claim too for our bags from this flight. Another flights bags were there. They finished up. More bags from a different flight arrived. Our bags did not Finally the baggage claim belt stopped working and and are flight was still listed on the arrivals for that baggage claim 2. And then nothing It turns out that they had been delivered not only the United baggage claim but far away on a Delta baggage claim No I never told us. It was only the people looking around who had been on the flight But I’m sure there was plenty of time for the employees to raffle through the bags and steal whatever they wanted

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

Very poor delay in dfw was really bad n long

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

Terrible. Cancelled my original flight. It made getting a boarding pass difficult. The AA employee (in a loud voice, so everyone around could hear) griped at me for not getting a boarding pass 24 hours before. I asked how I was supposed to do that when I had no idea what flight I was going to be on. She said (loudly), “Talk to AA customer service, not me!” I could certainly tell serving customers was not important to her. Our new flight was set to a completely different city. We had to change our rental car, and the price went way up. It took 2-1/2 hours to get checked in. By then our new flight had left. We ended up on stand by and had to split up the family to get to our destination. It cost us the whole first day of the trip. AA needs to employ people who actually care about doing a good job. I suppose those people are getting harder to find, but atleast try.

Delayed because of weather in Nashville. I think God or some higher power generally has cursed me when it comes to flying out of Charlotte on American. I'm delayed pretty much everytime. We need Team Cobra Kai types to come in and "sweep the leg(s)" of the Charlotte ops people on principle. Don't let the sweet southern rocking chairs fool you, Charlotte is a sinkhole

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

At the beginning of the flight there was some turbulence and the announcement was made that there would be no beverage service. The turbulence only last about 5 minutes then it was smooth sailing. I noticed that first class got their service, but the rest of us did not.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

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

Information on your arrival and departure airports

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