SAT

$29 Find Cheap Flights to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Antonio departing on 3/4. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Antonio
These are the airlines KAYAK users have selected most often from within our search results for flights to San Antonio
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$85
Overall average: $217
Frontier
Sat 2/28Tue 3/3
DEN - SAT • Non-stop
Cheapest one-way
$23
Typical prices: $97-$182
Frontier
Wed 3/4
DEN - SAT • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Basic Economy has low fares but limits changes.
The big red #5 VIA bus connects SAT to downtown easily.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Southwest
Most flights • 365 per week
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DEN
-
SAT
Cheapest
ORD
-
SAT
Most popular
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 25% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Antonio!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights to San Antonio

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to San Antonio 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 to San Antonio

Sat, Feb 28 - Tue, Mar 3
Frontier Logo
3:45 pm - 7:01 pm
DEN
-
SAT
2h 16mnonstop
Frontier Logo
5:36 pm - 7:00 pm
SAT
-
DEN
2h 24mnonstop
$85Frontier
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
4:20 pm - 7:37 pm
DEN
-
SAT
2h 17mnonstop
Frontier Logo
8:22 pm - 9:47 pm
SAT
-
DEN
2h 25mnonstop
$87Frontier
Tue, Mar 3 - Wed, Mar 4
Spirit Airlines Logo
11:30 am - 11:59 pm
BWI
-
SAT
13h 29m
1 stop
Spirit Airlines Logo
10:26 am - 5:46 pm
SAT
-
BWI
6h 20m
1 stop
$128Spirit Airlines
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
8:25 pm - 1:12 pm
BWI
-
SAT
17h 47m
1 stop
Multiple Airlines Logo
10:26 am - 5:46 pm
SAT
-
BWI
6h 20m
1 stop
$138Multiple Airlines
Sat, Feb 28 - Tue, Mar 3
Spirit Airlines Logo
4:45 pm - 11:59 pm
BWI
-
SAT
8h 14m
1 stop
Spirit Airlines Logo
10:26 am - 11:31 pm
SAT
-
BWI
12h 05m
1 stop
$139Spirit Airlines
Thu, Feb 19 - Mon, Feb 23
Multiple Airlines Logo
4:45 pm - 11:59 pm
BWI
-
SAT
8h 14m
1 stop
Multiple Airlines Logo
5:04 pm - 12:31 am
SAT
-
BWI
6h 27m
1 stop
$143Multiple Airlines
Wed, Mar 18 - Sat, Mar 21
United Airlines Logo
8:15 am - 11:11 am
IAD
-
SAT
3h 56mnonstop
United Airlines Logo
7:30 am - 11:44 am
SAT
-
IAD
3h 14mnonstop
$249United Airlines
Wed, Mar 18 - Sat, Mar 21
United Airlines Logo
8:15 am - 11:11 am
IAD
-
SAT
3h 56mnonstop
United Airlines Logo
4:10 pm - 11:51 pm
SAT
-
IAD
6h 41m
1 stop
$259United Airlines
Tue, Jul 14 - Thu, Jul 23
Delta Logo
2:20 pm - 5:16 pm
MSP
-
SAT
2h 56mnonstop
Delta Logo
5:50 pm - 8:42 pm
SAT
-
MSP
2h 52mnonstop
$339Delta
Mon, Mar 2 - Mon, Mar 9
Delta Logo
4:00 pm - 10:55 pm
MSP
-
SAT
6h 55m
1 stop
Delta Logo
6:32 am - 9:23 am
SAT
-
MSP
2h 51mnonstop
$349Delta
Booking Insights

KAYAK's insights & trends for flights to San Antonio

Get data-powered insights and trends for flights to San Antonio to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to San Antonio?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to San Antonio was found on the route from Denver, at $23 one-way and $85 return. The most popular connection is from Chicago to San Antonio and KAYAK users have found round-trip deals for as low as $271 in the last 3 days.

How much is a flight to San Antonio?

The average and cheapest price for all round-trip flights to San Antonio from each origin found by users searching on KAYAK in the last month.

On average, a flight to San Antonio costs $315. The cheapest price found on KAYAK in the last 2 weeks cost $29 and departed from Denver. The most popular routes on KAYAK are Denver to San Antonio which costs $204 on average, and Los Angeles to San Antonio, which costs $403 on average.

See prices from:

What is the cheapest month to fly to San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San Antonio, 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 to San Antonio is July, where tickets cost $338 on average for one-way flights. On the other hand, the most expensive months are December and September, where the average cost of tickets from the United States is $545 and $429 respectively. For return trips, the best month to travel is September with an average price of $306.

What is a good deal for flights to San Antonio?

If you’re looking for cheap airfare to San Antonio, 25% of our users found tickets to San Antonio for the following prices or less: From Fort Lauderdale $144 one-way - $166 round-trip, from Los Angeles $162 one-way - $355 round-trip, from Chicago O'Hare Intl Airport $183 one-way - $347 round-trip.

How far in advance should I book a flight to San Antonio?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San Antonio, 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 74 days before departure.

Expert advice

Expert advice for your flight to San Antonio

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on Delta, United Airlines and Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Joe Cortez

Joe Cortez

Expert on Spirit Airlines

Joe Cortez is a seasoned managing editor in aviation with over a decade of industry experience. His work has been featured on prominent platforms such as FlyerTalk and TripSavvy, establishing him as a respected voice in aviation journalism.

Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Good to know - Book Cheap San Antonio Plane Tickets

Low seasonSeptember
Cheapest flight$23
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Denver to San Antonio

When to book flights to San Antonio

Are your dates flexible? Find out the best times to travel to San Antonio 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. The information is for flights to San Antonio based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking San Antonio flights

  • What is the cheapest flight to San Antonio?

    In the last 3 days, the cheapest flight deal to San Antonio was found on the route from Denver, at $23 one-way and $85 return. The most popular connection is from Chicago to San Antonio and KAYAK users have found round-trip deals for as low as $271 in the last 3 days.

  • How far is San Antonio Airport from central San Antonio?

    San Antonio Airport is 8 miles from the center of San Antonio.

  • What is the name of San Antonio’s airport?

    There is only 1 airport in San Antonio, called San Antonio Airport (SAT). It can also be referred to as San Antonio or San Antonio Intl.

  • How much is a flight to San Antonio?

    On average, a flight to San Antonio costs $315. The cheapest price found on KAYAK in the last 2 weeks cost $29 and departed from Denver Intl Airport.

  • What is the cheapest day to fly to San Antonio?

    Based on KAYAK data, the cheapest day to fly to San Antonio is Thursday where tickets can be as cheap as $308. On the other hand, the most expensive day to fly is Sunday, where prices are $394 on average.

  • How does KAYAK find such low prices on flights to San Antonio?

    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 to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 to San Antonio?

    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 San Antonio with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to San Antonio?

    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 San Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to San Antonio?

    The cheapest time of day to fly to San Antonio is generally in the evening, when flights cost $329 on average. The most expensive time of day to fly to San Antonio is generally in the morning, which is peak travel time and where the average cost of a ticket is $439.

Top tips for finding cheap flights to San Antonio

  • Looking for cheap airfare to San Antonio? 25% of our users found round-trip tickets to San Antonio for the following prices or less: From Phoenix Sky Harbor Intl $159, from Newark $278, from Chicago O'Hare Intl $517
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Antonio flight deals.

Reviews of the top 5 airlines flying to San Antonio

 
See real verified KAYAK customer reviews for airlines flying to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to San Antonio. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San Antonio? 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.
8.0
SouthwestOverall score based on 4267 reviews
8.6Crew
8.1Boarding
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything a cheap airline should be at normal airline rates.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

Delayed, toilets did not flush, pilot parked to far away from Gate

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Even though we were delayed, we were able to make our connection

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

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.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

The seats from lax to DFW was so tight that I could not move my legs . No WiFi and had to pay . Not a good selection of entertainment

The flight was good. We had to spend almost an hour on the tarmac when we arrived in Dallas. Waiting for a gate. What’s the point of arriving early if you have no gate to park at?

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

Kayak was among the missing. There was not the usual advice regarding next gate after arriving in Dallas. No communication after the reminder to check in before the Moline flight. What happened?

For the cost you can't e too critical, but the inablitiy to recline the seat and minimal cushioning in the seats made for a less than comfortable flight. Other than that we had an ealry departure and arrival, boarding was smooth.

Horrible experience. First and last time using this airline. Made an announcement that boarding will start in 15 minutes, canceled the flight 5 minutes later due to no airline staff. Had to book another flight on Delta since Spirit had no other flights arriving to my original destination the same day. I wouldn't recommend anyone to fly with Spirit. No wonder why it consistently ranks high among worst airlines.

The plane was supposed to leave at 12:59 Amma and another plane took us around 9:30 am. There were 7 delay announcements. We were to receive a voucher of $12 back to pay for food at any place in the airport. One passenger tried to use the voucher was denied. I did not receive the voucher for me, my son, and grandson. I went to the desk and informed them and they took my phone # and email and they told me to wait. I did and was never sent. The plane was uncomfortable, the crew was dismissive of anyone beyond the last two seats. I will NEVER fly or recommend Spirit Airlines again.

I knew what I was getting into, but never again. Hour long bag drop. 1.5 hour delay. 1 hr 45 mins sitting on the tarmac after landing. They lost a bunch of bags but luckily not mine. Awful experience.

Our flight got rescheduled 48 hours later, the airline didn’t pay a penny for our expenses.

Uncomfortable seats and tiny tray table. Expensive snacks. Flight was on time and crew was pleasant but take me back to Southwest!

Boarding and unboarding processes were pretty smooth. I gave a low score for Boarding because of how my flight was missing from all the boards at the airport, and when I checked the flight status on the Spirit website, it said it would be departing from Terminal E, gate D15. There are no "D" gates in terminal E.

The flight was on time and the crew was very professional and accommodating. When other airlines are canceling flights Spirit is still flying with on time flights. I have no complaints and will continue to choose Spirit when it is the best option for me.

Prices for bags are extremely expensive and if you go higher on weight, the charge is ridiculous.

Waited at the airport for over 4 hours to board this flight. Terrible airline

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Flights with popular airlines flying to San Antonio

Flights from the other most popular airlines that fly from the United States to San Antonio according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.