SAT - TYS

$147 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 11/20. 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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Everything you should know

Cheapest round-trip
$217
Overall average: $258
American Airlines
Sat 1/10Sat 1/24
SAT - TYS • 1 stop
Cheapest one-way
$147
Typical prices: $177-$344
Frontier
Thu 11/20
SAT - TYS • 1 stop
Top airlines
American Airlines
Cheapest • from $217 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 26% price drop
October
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 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

Sat, Jan 10 - Sat, Jan 24
American Airlines Logo
9:30 am - 5:38 pmSAT-TYS
7h 08m1 stop
American Airlines Logo
5:14 pm - 9:58 pmTYS-SAT
5h 44m1 stop
$217American Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
Delta Logo
5:20 am - 11:47 amSAT-TYS
5h 27m1 stop
Delta Logo
5:00 pm - 8:27 pmTYS-SAT
4h 27m1 stop
$237Delta
Find Deal
Wed, Nov 5 - Wed, Nov 12
American Airlines Logo
6:00 am - 11:23 amSAT-TYS
4h 23m1 stop
American Airlines Logo
5:10 am - 9:46 amTYS-SAT
5h 36m1 stop
$243American Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
Delta Logo
5:20 am - 11:47 amSAT-TYS
5h 27m1 stop
Delta Logo
6:45 am - 12:19 pmTYS-SAT
6h 34m1 stop
$247Delta
Find Deal
Tue, Oct 28 - Wed, Nov 12
American Airlines Logo
11:10 am - 7:01 pmSAT-TYS
6h 51m1 stop
American Airlines Logo
5:10 am - 9:46 amTYS-SAT
5h 36m1 stop
$248American Airlines
Find Deal
Thu, Nov 6 - Thu, Nov 13
Multiple Airlines Logo
3:23 pm - 9:27 amSAT-TYS
41h 04m2 stops
Multiple Airlines Logo
7:17 pm - 7:30 pmTYS-SAT
25h 13m1 stop
$267Multiple Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
Multiple Airlines Logo
7:37 pm - 10:59 pmSAT-TYS
26h 22m2 stops
Multiple Airlines Logo
6:13 pm - 3:59 pmTYS-SAT
22h 46m1 stop
$268Multiple Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 24
United Airlines Logo
2:05 pm - 9:02 pmSAT-TYS
5h 57m1 stop
United Airlines Logo
6:45 am - 3:46 pmTYS-SAT
10h 01m2 stops
$292United Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 18
United Airlines Logo
4:24 pm - 11:44 pmSAT-TYS
6h 20m1 stop
United Airlines Logo
1:52 pm - 10:56 pmTYS-SAT
10h 04m2 stops
$318United Airlines
Find Deal
Sun, Mar 15 - Wed, Mar 18
Southwest Logo
5:30 am - 12:55 pmSAT-TYS
6h 25m2 stops
Southwest Logo
6:35 am - 2:30 pmTYS-SAT
8h 55m2 stops
$404Southwest
Find Deal
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 5 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$147
Best time to beat the crowds but there is an average 31% increase in price.
Most popular time to fly and prices are also 21% lower on average.
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 $147 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Antonio and Knoxville, with Star Alliance 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 $310 and an overall rating of 7.9, 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.
7.9
DeltaOverall score based on 7969 reviews
7.9Comfort
8.5Crew
8.2Boarding
7.9Entertainment
7.3Food
Airline reviews

The flight was great. The gate location was way to far away!!!

10.0 ExcellentLauren, Oct 2025JFK - PBI
Read more Delta reviews

The flight was great. The gate location was way to far away!!!

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

Cramped seating for me. Luckily it wasn’t a long flight

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

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

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

We didn't take off until an hour after we boarded.

The flight was fine. This survey is not. There is no option for N/A so items which don’t apply to my experience still must be rated. In those instances I give a “3” rating which ultimately skews the results.

The actual trip was fine, however, the changes made to our flights and the layovers were had to endure were awful.

Flight from Dallas to OKC was good, but my trip was interrupted due to a delayed flight from Austin to DFW, which happens all the time. I frequently miss my connection from DFW and American can never seem to make this work!

Because the plane was 90 degrees F, they would not let us board. I wish they had, because it meant we were delayed. It's Texas, of course it's hot. We would have survived.

Wish they had the seat-back video screens for watching movies or playing games.

Very good but wish they had the seat-back video screens for movies & games

American almost always Delays flights from Austin to Dallas and back. I cannot believe they have such poor service on this route. I was about to switch to American from Delta, but they gave me enough reasons not to.

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

Information on your arrival and departure airports

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