$27 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 4/28. 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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Everything you should know

Cheapest round-trip
$100
Overall average: $200
Frontier
Sat 5/2Sun 5/10
DEN - SAT • Non-stop
Cheapest one-way
$27
Typical prices: $87-$175
Frontier
Tue 4/28
DEN - SAT • Non-stop
Advice from real travelers
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 • 311 per week
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DEN
-
SAT
Cheapest
LAX
-
SAT
Most popular
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 26% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
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Flight Deals

Cheap Flights to San Antonio (SAT)

 
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, May 2 - Sun, May 10
Frontier Logo
11:50 am - 3:09 pm
DEN
-
SAT
2h 19mnonstop
Frontier Logo
3:14 pm - 4:40 pm
SAT
-
DEN
2h 26mnonstop
$100Frontier
Tue, May 5 - Sat, May 9
Frontier Logo
11:00 am - 2:19 pm
DEN
-
SAT
2h 19mnonstop
Frontier Logo
3:34 pm - 5:00 pm
SAT
-
DEN
2h 26mnonstop
$101Frontier
Sat, Apr 11 - Sat, Apr 18
Southwest Logo
11:50 am - 4:30 pm
LAX
-
SAT
2h 40mnonstop
Southwest Logo
5:05 pm - 6:25 pm
SAT
-
LAX
3h 20mnonstop
$248Southwest
Fri, Apr 10 - Sat, Apr 18
American Airlines Logo
5:30 pm - 8:05 pm
DCA
-
SAT
3h 35mnonstop
American Airlines Logo
6:20 am - 10:43 am
SAT
-
DCA
3h 23mnonstop
$249American Airlines
Sat, Apr 4 - Wed, Apr 8
United Airlines Logo
5:55 pm - 8:40 pm
IAD
-
SAT
3h 45mnonstop
United Airlines Logo
7:15 am - 11:36 am
SAT
-
IAD
3h 21mnonstop
$249United Airlines
Sat, Apr 4 - Fri, Apr 10
American Airlines Logo
5:00 pm - 7:56 pm
DCA
-
SAT
3h 56mnonstop
American Airlines Logo
6:20 am - 10:43 am
SAT
-
DCA
3h 23mnonstop
$251American Airlines
Tue, Apr 14 - Fri, Apr 17
Southwest Logo
6:20 am - 3:10 pm
IAD
-
SAT
9h 50m
1 stop
Southwest Logo
6:45 am - 5:05 pm
SAT
-
IAD
9h 20m
1 stop
$252Southwest
Wed, May 20 - Tue, May 26
United Airlines Logo
5:50 pm - 8:35 pm
IAD
-
SAT
3h 45mnonstop
United Airlines Logo
5:18 pm - 12:45 am
SAT
-
IAD
6h 27m
1 stop
$259United Airlines
Fri, May 1 - Mon, May 4
Delta Logo
6:05 am - 11:49 am
DCA
-
SAT
6h 44m
1 stop
Delta Logo
4:30 pm - 11:41 pm
SAT
-
DCA
6h 11m
1 stop
$269Delta
Fri, Jul 17 - Mon, Jul 20
Delta Logo
7:35 am - 10:52 am
JFK
-
SAT
4h 17mnonstop
Delta Logo
12:10 pm - 5:21 pm
SAT
-
JFK
4h 11mnonstop
$299Delta
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 $27 one-way and $100 return. The most popular connection is from Los Angeles to San Antonio and KAYAK users have found round-trip deals for as low as $242 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 $311. The cheapest price found on KAYAK in the last 2 weeks cost $41 and departed from Atlanta. The most popular routes on KAYAK are Denver to San Antonio which costs $223 on average, and New York to San Antonio, which costs $447 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 $330 on average for one-way flights. On the other hand, the most expensive months are December and February, where the average cost of tickets from the United States is $545 and $494 respectively. For return trips, the best month to travel is September with an average price of $303.

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 $104 one-way - $119 round-trip, from Chicago O'Hare Intl Airport $173 one-way - $352 round-trip, from Los Angeles $195 one-way - $364 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 seasonJanuary
Cheapest flight$27
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 8% 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 $27 one-way and $100 return. The most popular connection is from Los Angeles to San Antonio and KAYAK users have found round-trip deals for as low as $242 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 $311. The cheapest price found on KAYAK in the last 2 weeks cost $41 and departed from Atlanta Hartsfield-Jackson 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 $395 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 $389 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 $437.

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 $173, from Chicago O'Hare Intl $450, from Newark $654
  • 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 4301 reviews
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

4.0 Okaybyron, Feb 2026
DAL - SAT
Read more Southwest reviews

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

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.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight was warm for first few hours and quite rough

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Very old flight - time to retire it for newer airplanes

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Everything except the food and entertainment. It was a great experience though

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.

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

I am an AA flyer for a very long time... AA has yet to disappoint.

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

See prior comment about how Kayak mishandled my reservation and delayed my arrival by 6 hours.

Generally good. Flight left on time and the seats are comfortable. Plenty of space in front if you in you choose a comfort plus seat, completely worth spending the extra money given the amount of hours the flight lasts. The food tastes good but I would say it’s a the amount is too little. The crew was friendly and efficient. There was a some turbulence at different points into the flight. American Airlines has good deals to NZ if you book with plenty of time before you plan on going.

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

The screens were inoperable for movies and such, but everything else was just fine

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.

This flight cancelled. I am in the airport right now and my kids sleep on the floor. We are waiting for information in the line 4 hours and rude woman from spirit airline offers us flight to Austin on 23 February. No water no food offer. The offer to book hotel and they will refund 150$. The nearest hotel 450$ per night. So I got flight to San Antonio 02/22 at 7am. I hate this company, they are rude and no empathy. So many people with kids were there. And I don’t sleep and it is cold here. I don’t have warm clothes for me and my kids. And I don’t have money for transport from San Antonio to my Austin.

The flight was delayed over an hour which got us into DFW at approximately 2:20 am

Terrible. Spirit cancelled the flight with 3 hours notice and were absolutely no help getting another flight. Had to make my own reservation on another airline and arrived in Dallas 12 hours later.

They cancelled the flight due to crew unavailability. The next day they cancelled the flight again.

That gate is like a ducking shelter at Newark No where to sit Outlets that don’t work Bathrooms that are dirty

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.

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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.