HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Knoxville

$134+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — TYS
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Knoxville 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.

The best prices from San Antonio to Knoxville McGhee Tyson are usually found in January or August, booked 48 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap 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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$227
(Mytrip)

One-way from

$201
(American Airlines)

Popular in

November

Cheapest in

January

Average price

$401
Provider with most accurate pricing for San Antonio-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Knoxville McGhee Tyson flights.
Search Deals
From San Antonio to Knoxville McGhee Tyson
Search Deals
One-way flight from San Antonio to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from San Antonio to Knoxville

Cheapest flights from San Antonio to Knoxville
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 March 3, 2025.

This Mytrip deal was found by Cheapflights users on 3/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/210:58 amSAT - TYS
1 stop23h 05mMultiple Airlines
Mon 4/712:22 pmTYS - SAT
1 stop22h 41mMultiple Airlines
Deal found 3/2$227
This Delta deal was found by Cheapflights users on 3/3. 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 3/252:30 pmSAT - TYS
1 stop7h 37mDelta
Tue 4/87:24 pmTYS - SAT
1 stop6h 06mDelta
Deal found 3/3$249
This American Airlines deal was found by Cheapflights users on 3/2. 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 5/276:42 pmSAT - TYS
1 stop4h 16mAmerican Airlines
Tue 6/36:28 pmTYS - SAT
1 stop6h 30mAmerican Airlines
Deal found 3/2$319
This United Airlines deal was found by Cheapflights users on 3/3. 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 3/255:30 amSAT - TYS
1 stop7h 17mUnited Airlines
Tue 4/87:00 amTYS - SAT
2 stops26h 31mUnited Airlines
Deal found 3/3$377

Find flights from San Antonio to Knoxville within your budget

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 March 3, 2025.

Fly from

San Antonio

Fly to

Knoxville

Route

Depart

Return

Price

San AntonioKnoxville

SAT - TYS

SATTYS

San Antonio

Wed 4/2

10:58 am-11:03 am

1 stop23h 05m

Knoxville McGhee Tyson

Mon 4/7

12:22 pm-10:03 am

1 stop22h 41m

$227

San AntonioKnoxville

SAT - TYS

SATTYS

San Antonio

Tue 3/25

2:30 pm-11:07 pm

1 stop7h 37m

Knoxville McGhee Tyson

Tue 4/8

7:24 pm-12:30 am

1 stop6h 06m

$249

San AntonioKnoxville

SAT - TYS

SATTYS

San Antonio

Tue 5/27

6:42 pm-11:58 pm

1 stop4h 16m

Knoxville McGhee Tyson

Tue 6/3

6:28 pm-11:58 pm

1 stop6h 30m

$319

San AntonioKnoxville

SAT - TYS

SATTYS

San Antonio

Tue 3/25

5:30 am-1:47 pm

1 stop7h 17m

Knoxville McGhee Tyson

Tue 4/8

7:00 am-8:31 am

2 stops26h 31m

$377

San AntonioKnoxville

SAT - TYS

SATTYS

San Antonio

Wed 5/14

6:13 pm-8:09 pm

1 stop24h 56m

$134

San AntonioKnoxville

SAT - TYS

SATTYS

San Antonio

Tue 4/1

6:38 am-2:13 pm

1 stop6h 35m

$201

San AntonioKnoxville

SAT - TYS

SATTYS

San Antonio

Tue 4/1

2:11 pm-10:05 am

2 stops18h 54m

$291

San AntonioKnoxville

SAT - TYS

SATTYS

San Antonio

Tue 4/1

3:15 pm-5:21 pm

3 stops25h 06m

$1,374

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Travel insights for flights from San Antonio to Knoxville

Get recent, data-driven insights about flights from San Antonio to Knoxville including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Knoxville. Price data was last updated on February 28, 2025.

Booking 48 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, January is the cheapest month in which you can book a flight from San Antonio to Knoxville (average of $296). Flying from San Antonio to Knoxville in March is currently the most expensive (average of $376). 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.

What is the cheapest time of day to fly from SAT to TYS?

Find hourly flight availability from San Antonio to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

A simple way to save on the total cost of your ticket is to fly from San Antonio to Knoxville in the evening. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the morning.

Rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 March 3, 2025.
Alaska Airlines
8.0
Very good
9,710 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,710 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,068 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,679 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • What are the cheapest airlines flying from San Antonio to Knoxville round-trip?

    Our cheapest airline available from San Antonio to Knoxville is Delta. Our recent data shows that you can find tickets from as low as $249 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $319 and $377 round-trip. You may be able to fly from San Antonio to Knoxville for 29% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Antonio to Knoxville one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $201. Users have also found prices from $291 and $1,374 on United Airlines and Alaska Airlines, respectively.

  • Can I find deals for flights from San Antonio to Knoxville that include hotel bookings?

    Yes. In addition to deals on San Antonio to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Knoxville.

  • Can I find deals for business class flights from San Antonio to Knoxville?

    Yes. Cheapflights offers flight deals from San Antonio to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Knoxville (average of $296). Flying from San Antonio to Knoxville in March is currently the most expensive (average of $376). 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.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
Morristown
Cherokee
Corbin
Maryville
Oak Ridge
Alcoa
Murphy

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Nashville flights
Hobby to Nashville flights
Dallas/Fort Worth to Knoxville flights
George Bush Intcntl to Nashville flights
Austin to Nashville flights
Hobby to Knoxville flights
Dallas/Fort Worth to Memphis flights
George Bush Intcntl to Knoxville flights
Love Field to Nashville flights
George Bush Intcntl to Memphis flights
San Antonio to Nashville flights
Hobby to Memphis flights
Dallas/Fort Worth to Chattanooga flights
Love Field to Memphis flights
Hobby to Chattanooga flights
Austin to Knoxville flights
Love Field to Knoxville flights
Austin to Memphis flights
George Bush Intcntl to Chattanooga flights
El Paso to Knoxville flights
El Paso to Nashville flights
Dallas/Fort Worth to Blountville flights
San Antonio to Memphis flights
Midland to Nashville flights
McAllen to Nashville flights
Amarillo to Nashville flights
Midland to Knoxville flights
Harlingen to Nashville flights
Love Field to Chattanooga flights
College Station to Nashville flights
George Bush Intcntl to Blountville flights
Corpus Christi to Knoxville flights
Love Field to Blountville flights
San Antonio to Chattanooga flights
Laredo to Nashville flights
Corpus Christi to Nashville flights
El Paso to Chattanooga flights
Austin to Chattanooga flights
Brownsville to Nashville flights
San Antonio to Blountville flights
Killeen to Blountville flights
Amarillo to Knoxville flights
McAllen to Knoxville flights
Wichita Falls to Nashville flights
Lubbock to Nashville flights
Killeen to Nashville flights
Longview to Knoxville flights
Corpus Christi to Memphis flights
Waco to Nashville flights

Top 3 airlines flying from San Antonio to Knoxville

Discover the top 3 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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$356FlexibilityNo cancel feeOn-time71%
DeltaCheapest$237Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$408FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.