Cheap flights from Knoxville to San Antonio from $128
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to San Antonio departing on 5/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Knoxville to San Antonio
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
United Airlines flights from Knoxville to San Antonio
Our best United Airlines deals on Knoxville to San Antonio flight tickets
Delta flights from Knoxville to San Antonio
Our best Delta deals on Knoxville to San Antonio flight tickets
See travel insights to San Antonio from
How to get the cheapest flight ticket from Knoxville to San Antonio
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Antonio?
If you aren’t able to travel during the month of January, then book flights to San Antonio from Knoxville during August instead. Flights to San Antonio in August, while not as cheap as those in January, still average around $272.
What is the cheapest day to depart on your flight to San Antonio?
The cheapest day to depart on your flight to San Antonio is on a Friday when prices can be found for as low as $284. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $480.
What is the cheapest time of day to depart on your flight to San Antonio?
According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Knoxville to San Antonio in the evening for as low as $279. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the morning, with an average ticket price of $343. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to San Antonio?
You are more likely to see cheaper flights to San Antonio from Knoxville when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $347 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Knoxville for as low as $257 on momondo.
What is the cheapest airline that flies from Knoxville McGhee Tyson to San Antonio?
Delta, United Airlines, and American Airlines are the most popular carriers operating from Knoxville McGhee Tyson to San Antonio
What airlines fly to San Antonio?
American Airlines, Delta and Allegiant Air are the top three most popular airlines that fly to San Antonio from Knoxville according to our data. American Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 4 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.
When to book flights from Knoxville to San Antonio
Cheap Knoxville to San Antonio (TYS to SAT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Knoxville to San Antonio
How far is Knoxville McGhee Tyson to San Antonio by plane?
San Antonio is 958.1 mi away from Knoxville McGhee Tyson. In terms of flight time, this usually takes a little over 4h 52m.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to San Antonio Airport?
Prices for flights from Knoxville McGhee Tyson Airport to San Antonio Airport are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to San Antonio Airport?
The number of operators available for flights from Knoxville McGhee Tyson Airport to San Antonio Airport is 3 as of April 2025.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to San Antonio Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Knoxville to San Antonio?
momondo data reveals that the most frequently booked airline on the route from Knoxville to San Antonio is American Airlines, representing 62% of all bookings. The subsequent popular airlines are Delta at 25% and United Airlines at 14%.
Best airlines flying from Knoxville to San Antonio
Compare and see reviews for airlines that fly from Knoxville to San Antonio with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $205 | Free Cancellation | Rating 8.0 7,917 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 7.4 8,667 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Knoxville to San Antonio?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Antonio from Knoxville.
Can I find flights from Knoxville to San Antonio with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Knoxville to San Antonio flights to just show those with flexible booking policies.
How can momondo help me find flights from Knoxville to San Antonio?
momondo helps you find the best flight between Knoxville and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Knoxville to San Antonio right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to San Antonio from Knoxville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.