$129+ Cheap flights from San Antonio to Knoxville (SAT - TYS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — TYS
Jun 11 — Jun 181
Round-trip
1 adult, Economy
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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
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Cheapest flights from San Antonio to KnoxvilleExplore the most affordable flight options available from San Antonio to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
Explore the most affordable flight options available from San Antonio to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Tue 10/2010:12 am
SAT
- TYS
1 stop4h 41m
American Airlines
Tue 10/275:37 pm
TYS
- SAT
1 stop6h 18m
American Airlines
Deal found 5/12![American Airlines logo]()
$257
This CheapOair deal was found by Cheapflights users on 5/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/117:51 pm
SAT
- TYS
1 stop22h 46m
Frontier
Mon 6/158:32 pm
TYS
- SAT
1 stop23h 24m
Frontier
Deal found 5/10![Frontier logo]()
$260
This Delta deal was found by Cheapflights users on 5/10. 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.
Sat 9/55:30 am
SAT
- TYS
1 stop5h 54m
Delta
Tue 9/85:30 am
TYS
- SAT
1 stop6h 40m
Delta
Deal found 5/10![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 5/10. 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 6/297:40 am
SAT
- TYS
1 stop4h 39m
Delta
Fri 7/35:40 am
TYS
- SAT
1 stop5h 12m
Delta
Deal found 5/10![Delta logo]()
$290
This American Airlines deal was found by Cheapflights users on 5/10. 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.
Mon 6/295:01 am
SAT
- TYS
1 stop5h 12m
American Airlines
Fri 7/310:00 am
TYS
- SAT
1 stop7h 57m
American Airlines
Deal found 5/10![American Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 5/11. 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.
Wed 7/85:20 am
SAT
- TYS
1 stop4h 45m
Delta
Sun 7/125:40 am
TYS
- SAT
1 stop5h 03m
Delta
Deal found 5/11![Delta logo]()
$298
This Southwest deal was found by Cheapflights users on 5/12. 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 10/206:10 am
SAT
- TYS
1 stop5h 55m
Southwest
Tue 10/277:00 am
TYS
- SAT
2 stops6h 15m
Southwest
Deal found 5/12![Southwest logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Fri 9/2512:38 pm
SAT
- TYS
1 stop6h 31m
Multiple Airlines
Sun 9/275:38 pm
TYS
- SAT
1 stop19h 20m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$320
This American Airlines deal was found by Cheapflights users on 5/9. 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.
Mon 6/15:52 pm
SAT
- TYS
1 stop4h 55m
American Airlines
Sat 6/68:11 pm
TYS
- SAT
1 stop4h 48m
American Airlines
Deal found 5/9![American Airlines logo]()
$323
This CheapOair deal was found by Cheapflights users on 5/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/217:51 pm
SAT
- TYS
1 stop22h 46m
Frontier
Fri 6/268:32 pm
TYS
- SAT
1 stop23h 24m
Frontier
Deal found 5/11![Frontier logo]()
$325
Best flights from San Antonio to KnoxvilleDiscover carefully curated flight deals from San Antonio to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
Discover carefully curated flight deals from San Antonio to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
This Southwest deal was found by Cheapflights users on 5/12. 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 10/206:10 am
SAT
- TYS
1 stop5h 55m
Southwest
Tue 10/277:00 am
TYS
- SAT
2 stops6h 15m
Southwest
Deal found 5/12![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Tue 10/205:00 pm
SAT
- TYS
1 stop6h 30m
United Airlines
Tue 10/277:00 am
TYS
- SAT
2 stops14h 06m
United Airlines
Deal found 5/12![United Airlines logo]()
$342
This Delta deal was found by Cheapflights users on 5/8. 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.
Wed 7/225:20 am
SAT
- TYS
1 stop4h 45m
Delta
Sun 8/2310:43 am
TYS
- SAT
1 stop6h 41m
Delta
Deal found 5/8![Delta logo]()
$342
This Southwest deal was found by Cheapflights users on 5/8. 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 6/511:45 am
SAT
- TYS
2 stops8h 25m
Southwest
Fri 6/127:45 pm
TYS
- SAT
1 stop6h 15m
Southwest
Deal found 5/8![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 5/9. 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 8/85:57 pm
SAT
- TYS
1 stop4h 15m
United Airlines
Wed 8/127:00 am
TYS
- SAT
2 stops11h 43m
United Airlines
Deal found 5/9![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 5/9. 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 9/59:45 am
SAT
- TYS
2 stops6h 55m
Southwest
Tue 9/87:00 am
TYS
- SAT
2 stops6h 20m
Southwest
Deal found 5/9![Southwest logo]()
$366
This Southwest deal was found by Cheapflights users on 5/10. 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 10/186:40 am
SAT
- TYS
1 stop4h 15m
Southwest
Sat 10/242:55 pm
TYS
- SAT
2 stops7h 00m
Southwest
Deal found 5/10![Southwest logo]()
$412
Last-minute flights from San Antonio to KnoxvilleDiscover last-minute flight deals from San Antonio to Knoxville. Data last updated May 12, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Knoxville. Data last updated May 12, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/11. 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 5/206:00 am
SAT
- TYS
1 stop5h 30m
American Airlines
Wed 5/273:40 pm
TYS
- SAT
1 stop7h 37m
American Airlines
Deal found 5/11![American Airlines logo]()
$343
This Southwest deal was found by Cheapflights users on 5/11. 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 5/206:30 am
SAT
- TYS
2 stops6h 50m
Southwest
Wed 5/2712:50 pm
TYS
- SAT
1 stop9h 15m
Southwest
Deal found 5/11![Southwest logo]()
$354
This American Airlines deal was found by Cheapflights users on 5/7. 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.
Mon 6/15:52 pm
SAT
- TYS
1 stop4h 55m
American Airlines
Sat 6/68:11 pm
TYS
- SAT
1 stop4h 48m
American Airlines
Deal found 5/7![American Airlines logo]()
$274
This Southwest deal was found by Cheapflights users on 5/8. 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 6/511:45 am
SAT
- TYS
2 stops8h 25m
Southwest
Fri 6/127:45 pm
TYS
- SAT
1 stop6h 15m
Southwest
Deal found 5/8![Southwest logo]()
$334
This Southwest deal was found by Cheapflights users on 5/9. 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 6/83:45 pm
SAT
- TYS
1 stop5h 45m
Southwest
Mon 6/157:45 pm
TYS
- SAT
1 stop6h 15m
Southwest
Deal found 5/9![Southwest logo]()
$326
This American Airlines deal was found by Cheapflights users on 5/10. 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.
Tue 6/95:01 am
SAT
- TYS
1 stop7h 01m
American Airlines
Tue 6/165:00 am
TYS
- SAT
1 stop5h 10m
American Airlines
Deal found 5/10![American Airlines logo]()
$257
This CheapOair deal was found by Cheapflights users on 5/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/117:51 pm
SAT
- TYS
1 stop22h 46m
Frontier
Mon 6/158:32 pm
TYS
- SAT
1 stop23h 24m
Frontier
Deal found 5/10![Frontier logo]()
$260
This American Airlines deal was found by Cheapflights users on 5/10. 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.
Mon 6/155:35 pm
SAT
- TYS
1 stop5h 20m
American Airlines
Thu 6/185:00 am
TYS
- SAT
1 stop5h 10m
American Airlines
Deal found 5/10![American Airlines logo]()
$329
This CheapOair deal was found by Cheapflights users on 5/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/217:51 pm
SAT
- TYS
1 stop22h 46m
Frontier
Fri 6/268:32 pm
TYS
- SAT
1 stop23h 24m
Frontier
Deal found 5/11![Frontier logo]()
$325
This Delta deal was found by Cheapflights users on 5/10. 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 6/297:40 am
SAT
- TYS
1 stop4h 39m
Delta
Fri 7/35:40 am
TYS
- SAT
1 stop5h 12m
Delta
Deal found 5/10![Delta logo]()
$290
This American Airlines deal was found by Cheapflights users on 5/10. 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.
Mon 6/295:01 am
SAT
- TYS
1 stop5h 12m
American Airlines
Fri 7/310:00 am
TYS
- SAT
1 stop7h 57m
American Airlines
Deal found 5/10![American Airlines logo]()
$293
One-way flights from San Antonio to KnoxvilleSearch for one-way flight options from San Antonio to Knoxville. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
Search for one-way flight options from San Antonio to Knoxville. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
This American Airlines deal was found by Cheapflights users on 5/8. 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 8/155:00 am
SAT
- TYS
1 stop6h 58m
American Airlines
Deal found 5/8![American Airlines logo]()
$129
This Delta deal was found by Cheapflights users on 5/11. 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.
Tue 9/2212:15 pm
SAT
- TYS
1 stop5h 02m
Delta
Deal found 5/11![Delta logo]()
$134
This Delta deal was found by Cheapflights users on 5/11. 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 6/297:40 am
SAT
- TYS
1 stop6h 09m
Delta
Deal found 5/11![Delta logo]()
$162
This Delta deal was found by Cheapflights users on 5/11. 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 9/188:00 am
SAT
- TYS
1 stop6h 07m
Delta
Deal found 5/11![Delta logo]()
$165
This American Airlines deal was found by Cheapflights users on 5/11. 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 9/195:30 pm
SAT
- TYS
1 stop4h 48m
American Airlines
Deal found 5/11![American Airlines logo]()
$169
This Southwest deal was found by Cheapflights users on 5/7. 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 11/49:45 am
SAT
- TYS
2 stops8h 05m
Southwest
Deal found 5/7![Southwest logo]()
$175
This Delta deal was found by Cheapflights users on 5/7. 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 8/145:20 am
SAT
- TYS
1 stop4h 51m
Delta
Deal found 5/7![Delta logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 9/1911:08 am
SAT
- TYS
1 stop25h 36m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/2911:30 am
SAT
- TYS
2 stops27h 42m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 5/7. 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 8/155:40 am
SAT
- TYS
2 stops8h 00m
Southwest
Deal found 5/7![Southwest logo]()
$191
This Southwest deal was found by Cheapflights users on 5/7. 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 8/147:10 am
SAT
- TYS
2 stops9h 00m
Southwest
Deal found 5/7![Southwest logo]()
$192
Find flight deals from San Antonio to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Knoxville (TYS). 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 May 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (American Airlines) |
One-way from | $129 (American Airlines) |
Popular in | April |
Cheapest in | October |
Average price | $292 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Knoxville 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 2,558,603 searches. Data last updated May 12, 2026.
Use the filters below to find and compare flights from San Antonio to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Tue 10/20
6:10 am-1:05 pm
1 stop5h 55m
Knoxville McGhee Tyson
Tue 10/27
7:00 am-12:15 pm
2 stops6h 15m
$318
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Fri 6/5
11:45 am-9:10 pm
2 stops8h 25m
Knoxville McGhee Tyson
Fri 6/12
7:45 pm-1:00 am
1 stop6h 15m
$334
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Tue 10/20
5:00 pm-12:30 am
1 stop6h 30m
Knoxville McGhee Tyson
Tue 10/27
7:00 am-8:06 pm
2 stops14h 06m
$342
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Wed 7/22
5:20 am-11:05 am
1 stop4h 45m
Knoxville McGhee Tyson
Sun 8/23
10:43 am-4:24 pm
1 stop6h 41m
$342
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Sat 8/8
5:57 pm-11:12 pm
1 stop4h 15m
Knoxville McGhee Tyson
Wed 8/12
7:00 am-5:43 pm
2 stops11h 43m
$364
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Sat 9/5
9:45 am-5:40 pm
2 stops6h 55m
Knoxville McGhee Tyson
Tue 9/8
7:00 am-12:20 pm
2 stops6h 20m
$366
Quickest round-trip
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Sun 10/18
6:40 am-11:55 am
1 stop4h 15m
Knoxville McGhee Tyson
Sat 10/24
2:55 pm-8:55 pm
2 stops7h 00m
$412
Cheapest one-way
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Fri 5/29
5:30 pm-12:09 am
1 stop5h 39m
$129
Quickest one-way
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Sun 5/24
5:25 am-11:09 am
1 stop4h 44m
$129
San AntonioKnoxville
SAT - TYS
SATTYS
San Antonio
Sat 8/15
5:00 am-12:58 pm
1 stop6h 58m
$129
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from San Antonio to Knoxville
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 San Antonio to Knoxville in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-Knoxville 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 San Antonio-Knoxville 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 San Antonio to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from San Antonio with our price prediction graph.
SAT-TYS
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 San Antonio to Knoxville
How far ahead should I book a flight from San Antonio to Knoxville?
Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from San Antonio to Knoxville?
Currently, October is the cheapest month in which you can book a flight from San Antonio to Knoxville (average of $278). Flying from San Antonio to Knoxville in April is currently the most expensive (average of $483). 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 San Antonio to Knoxville?
Reviews of airlines servicing Knoxville
Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated May 12, 2026.
Read through reviews of airlines operating flights from San Antonio to Knoxville, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Related info for your journey
Find useful and relevant information for your journey from San Antonio to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Top 4 airlines flying from San Antonio to Knoxville
Discover the top 4 airlines that operate flights from San Antonio to Knoxville. 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 2,558,603 searches. Data last updated May 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$144 | Average$327 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$359 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$216 | Average$355 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$278 | Average$336 | FlexibilityNo cancel fee | On-time69% |