$139+ Cheap flights from Knoxville to San Antonio (TYS - SAT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SAT
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to San Antonio with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Knoxville to San Antonio
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Best
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Cheapest flights from Knoxville to San AntonioExplore the most affordable flight options available from Knoxville to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Knoxville to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:32 pm -
1 stop6h 25m
Sat 12/54:34 pm -
1 stop6h 06m
Deal found 10/30![American Airlines logo]()
$317
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:53 am -
1 stop4h 55m
Sat 12/511:47 am -
2 stops8h 00m
Deal found 10/30![United Airlines logo]()
$322
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/165:17 pm -
1 stop5h 43m
Mon 12/215:58 pm -
1 stop4h 55m
Deal found 10/29![American Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:17 pm -
1 stop7h 18m
Tue 12/151:45 pm -
1 stop5h 29m
Deal found 10/28![Delta logo]()
$325
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:25 pm -
1 stop6h 35m
Tue 12/1512:00 pm -
2 stops6h 50m
Deal found 10/28![Southwest logo]()
$330
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/165:15 pm -
2 stops5h 30m
Mon 12/215:40 pm -
1 stop4h 00m
Deal found 10/29![Southwest logo]()
$343
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:30 pm -
1 stop5h 36m
Mon 11/305:57 pm -
1 stop4h 35m
Deal found 10/28![American Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:02 pm -
1 stop5h 54m
Thu 1/1412:45 pm -
1 stop4h 30m
Deal found 10/29![American Airlines logo]()
$353
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:00 am -
1 stop9h 25m
Wed 12/27:10 am -
1 stop4h 10m
Deal found 10/28![Southwest logo]()
$362
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:10 pm -
1 stop7h 23m
Fri 11/276:30 am -
1 stop6h 25m
Deal found 10/26![Delta logo]()
$372
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:15 pm -
2 stops5h 30m
Sat 12/56:05 am -
2 stops7h 05m
Deal found 10/30![Southwest logo]()
$379
Best flights from Knoxville to San AntonioDiscover carefully curated flight deals from Knoxville to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Knoxville to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/214:43 pm -
1 stop4h 38m
Mon 1/254:51 pm -
1 stop6h 07m
Deal found 10/26![Delta logo]()
$333
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:05 am -
2 stops6h 50m
Thu 1/147:15 am -
2 stops5h 45m
Deal found 10/29![Southwest logo]()
$433
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/216:30 am -
2 stops10h 00m
Mon 1/259:35 am -
2 stops10h 30m
Deal found 10/26![United Airlines logo]()
$443
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:50 am -
1 stop6h 37m
Sun 11/156:07 am -
1 stop6h 10m
Deal found 10/26![American Airlines logo]()
$527
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:10 pm -
1 stop7h 23m
Fri 11/276:30 am -
1 stop6h 25m
Deal found 10/26![Delta logo]()
$372
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/225:28 pm -
1 stop4h 57m
Sun 1/245:15 am -
2 stops10h 39m
Deal found 10/28![United Airlines logo]()
$471
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:40 pm -
2 stops8h 50m
Tue 11/177:10 am -
1 stop4h 10m
Deal found 10/29![Southwest logo]()
$492
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 am -
2 stops8h 05m
Sun 11/155:25 am -
2 stops5h 45m
Deal found 10/25![Southwest logo]()
$527
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:40 pm -
1 stop6h 55m
Tue 11/108:20 am -
1 stop4h 45m
Deal found 10/25![Southwest logo]()
$538
Last-minute flights from Knoxville to San AntonioDiscover last-minute flight deals from Knoxville to San Antonio. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to San Antonio. Data last updated October 30, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:50 pm -
1 stop7h 20m
Sun 11/157:00 am -
1 stop4h 10m
Deal found 10/25![Southwest logo]()
$463
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/143:45 pm -
1 stop6h 41m
Mon 11/234:19 pm -
1 stop4h 38m
Deal found 10/25![United Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:23 pm -
2 stops42h 35m
Mon 11/2312:06 pm -
1 stop10h 23m
Deal found 10/25![Multiple Airlines logo]()
$391
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:50 pm -
2 stops7h 25m
Mon 11/239:45 am -
2 stops8h 00m
Deal found 10/25![Southwest logo]()
$467
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:07 pm -
1 stop4h 59m
Mon 11/306:30 am -
1 stop3h 58m
Deal found 10/27![Delta logo]()
$412
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:30 pm -
1 stop5h 36m
Mon 11/305:57 pm -
1 stop4h 35m
Deal found 10/28![American Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:10 pm -
1 stop8h 00m
Mon 11/302:50 pm -
2 stops6h 50m
Deal found 10/28![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:10 pm -
1 stop7h 23m
Fri 11/276:30 am -
1 stop6h 25m
Deal found 10/26![Delta logo]()
$372
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:00 am -
1 stop9h 25m
Wed 12/27:10 am -
1 stop4h 10m
Deal found 10/28![Southwest logo]()
$362
One-way flights from Knoxville to San AntonioSearch for one-way flight options from Knoxville to San Antonio. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Knoxville to San Antonio. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:40 pm -
1 stop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$139
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/217:15 pm -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Southwest logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:24 pm -
2 stops24h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$182
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:00 am -
1 stop7h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![United Airlines logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:14 pm -
3 stops43h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:05 am -
1 stop4h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/218:32 pm -
3 stops39h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:05 am -
2 stops6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$229
Find flight deals from Knoxville to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $317 (American Airlines) |
One-way from | $139 (Southwest) |
Popular in | September |
Cheapest in | January |
Average price | $376 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Knoxville to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Thu 12/17
7:25 pm-1:00 am
1 stop6h 35m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$139
Quickest round-trip
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Wed 12/2
2:40 pm-7:10 pm
1 stop5h 30m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$139
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Mon 12/21
7:15 pm-1:25 am
1 stop7h 10m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$167
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Sun 12/13
6:00 am-12:20 pm
1 stop7h 20m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$187
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Wed 12/2
5:14 pm-11:58 am
3 stops43h 44m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$189
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Sun 12/13
7:05 am-12:55 pm
2 stops6h 50m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$229
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Fri 11/27
7:05 am-2:10 pm
2 stops8h 05m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$239
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Sat 11/7
2:50 pm-8:25 pm
1 stop6h 35m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$315
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Sat 11/7
6:00 am-8:45 am
3 stops27h 45m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$333
KnoxvilleSan Antonio
TYS Knoxville McGhee Tyson - SAT San Antonio
TYSSAT
Knoxville McGhee Tyson
Thu 1/21
4:43 pm-8:21 pm
1 stop4h 38m
San Antonio
Mon 1/25
4:51 pm-11:58 pm
1 stop6h 07m
$333
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Knoxville to San Antonio
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to San Antonio in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Knoxville-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Knoxville to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Knoxville with our price prediction graph.
TYS-SAT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Knoxville to San Antonio
What is the cheapest month to book a flight from Knoxville to San Antonio?
Currently, January is the cheapest month in which you can book a flight from Knoxville to San Antonio (average of $290). Flying from Knoxville to San Antonio in September is currently the most expensive (average of $704). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Knoxville to San Antonio?
Airfare is below average for this route at the moment.
Knoxville to San Antonio flights typically cost between $334 and $540 in December.The cheapest round-trip price found within the last 5 days was $317 on American Airlines (Dec 3-Dec 5).
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated October 30, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Knoxville to San Antonio to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Entertainment
7.4
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.4
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.4
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.4
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.4
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Related info for your journey
Find useful and relevant information for your journey from Knoxville to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Knoxville and San Antonio flights
Browse other Knoxville and San Antonio flight options. Last updated on October 30, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Top 4 airlines flying from Knoxville to San Antonio
Discover the top 4 airlines that operate flights from Knoxville to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$328 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$268 | Average$372 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$268 | Average$430 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$299 | Average$476 | FlexibilityNo cancel fee | On-time63% |