SAN - SAT

$51 Find Cheap Flights from San Diego 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 from San Diego to San Antonio departing on 2/18. 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 in flight searches from San Diego to San Antonio.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to San Antonio.
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Everything you should know

Cheapest round-trip
$134
Typical prices: $192-$510
Frontier
Mon 2/9Thu 2/12
SAN - SAT • 1 stop
Cheapest non-stop
$391
Typical prices: $347-$608
Southwest
Thu 2/5Mon 2/9
SAN - SAT • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Security lines at SAN peak at 30-35 minutes.
Take the #5 VIA bus from SAT to downtown in 30 mins.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to San Antonio
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When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 37% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
6 days a week
There are direct flights from San Diego to San Antonio 6 days a week: Mon, Tue, Thu, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
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We hope you love your trip to San Antonio!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Diego to San Antonio (SAN-SAT)

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

Mon, Feb 9 - Thu, Feb 12
Frontier Logo
11:49 am - 4:17 pm
SAN
-
SAT
26h 28m1 stop
Frontier Logo
8:25 pm - 7:40 am
SAT
-
SAN
13h 15m1 stop
$134Frontier
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
11:49 am - 7:33 pm
SAN
-
SAT
29h 44m1 stop
Frontier Logo
8:24 pm - 9:41 pm
SAT
-
SAN
27h 17m1 stop
$136Frontier
Tue, Jan 6 - Sat, Jan 10
Multiple Airlines Logo
9:44 am - 5:37 am
SAN
-
SAT
17h 53m1 stop
Multiple Airlines Logo
3:55 pm - 11:16 pm
SAT
-
SAN
9h 21m1 stop
$139Multiple Airlines
Wed, Jan 7 - Fri, Jan 9
Frontier Logo
9:43 am - 11:00 am
SAN
-
SAT
23h 17m1 stop
Frontier Logo
10:13 am - 11:59 pm
SAT
-
SAN
15h 46m1 stop
$146Frontier
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
2:56 pm - 12:25 pm
SAN
-
SAT
19h 29m1 stop
Frontier Logo
8:24 pm - 9:41 pm
SAT
-
SAN
27h 17m1 stop
$153Frontier
Wed, Feb 18 - Sun, Feb 22
Frontier Logo
7:11 am - 4:17 pm
SAN
-
SAT
7h 06m1 stop
Frontier Logo
11:35 am - 1:10 pm
SAT
-
SAN
27h 35m1 stop
$154Frontier
Tue, Feb 24 - Sat, Feb 28
Frontier Logo
7:11 am - 4:17 pm
SAN
-
SAT
7h 06m1 stop
Frontier Logo
7:56 pm - 8:24 am
SAT
-
SAN
14h 28m1 stop
$155Frontier
Mon, Feb 2 - Fri, Feb 6
Frontier Logo
6:30 am - 7:33 pm
SAN
-
SAT
11h 03m1 stop
Frontier Logo
8:24 pm - 11:31 pm
SAT
-
SAN
29h 07m1 stop
$164Frontier
Wed, Feb 18 - Sun, Feb 22
Frontier Logo
7:11 am - 4:17 pm
SAN
-
SAT
7h 06m1 stop
Frontier Logo
11:35 am - 10:45 am
SAT
-
SAN
25h 10m2 stops
$168Frontier
Wed, Jan 7 - Fri, Jan 9
Frontier Logo
9:43 am - 11:00 am
SAN
-
SAT
23h 17m1 stop
Frontier Logo
10:13 am - 7:37 pm
SAT
-
SAN
11h 24m1 stop
$169Frontier
Booking Insights

KAYAK's insights & trends for San Diego to San Antonio flights

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

Find cheap flights to San Antonio
Find cheap flights to San Antonio

Planning a trip from San Diego to San Antonio? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

How much is a round-trip flight from San Diego to San Antonio?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to San Antonio departing in February.

What’s the cheapest day of the week to fly from San Diego to San Antonio?

The average price of all round-trip flights from San Diego to San Antonio clicked on KAYAK for each day over the last 12 months.

For San Diego to San Antonio, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from San Antonio back to San Diego, the best deals are generally found on Wednesday, with Sunday being the most expensive.

What is the cheapest month to fly from San Diego to San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego 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 from San Diego to San Antonio is October, where tickets cost $235 (return) on average. On the other hand, the most expensive months are July and November, where the average cost of round-trip tickets is $446 and $436 respectively.

How far in advance should I book a flight from San Diego 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 from San Diego 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 on the flight from San Diego to San Antonio, you should book around 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Expert advice

Expert advice for your flight from San Diego 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.
Airports
SAN

Security lines at SAN are generally manageable, with peak wait times around 30–35 minutes, even during busy hours like 8-9 am and 5-6 pm.

SAT

For easy and affordable transport from SAT to downtown, take the #5 VIA bus, which runs daily and takes about 30 minutes.

Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SAN and SAT

Brandon Schultz

Brandon Schultz

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.

Read more

Good to know

Low seasonSeptember
Cheapest flight$57
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from San Diego to San Antonio

When to book flights from San Diego to San Antonio

Are your dates flexible? Find out the best times to travel from San Diego 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to San Antonio

  • What is the best means of transport to downtown San Antonio from SAT airport?

    Bus line number 5, which takes 33min, costs about $2 and is the best option for getting from San Antonio International Airport (SAT) to downtown San Antonio if you do not have a vehicle.

  • Are there car rental services at SAT airport?

    The location of the automobile rental agency is at terminal A. Alamo, National, and Hertz are all represented here, among others. Car rental agencies offering longer-term leases are located in erminal C, while those offering shorter-term leases are located in erminal B. You can go to the rental vehicle facility by exiting terminal A and then following the signs.

  • Is there a place to sleep at San Diego Airport?

    Since most of the seating in SAN has armrests, you should bring along something comfortable to sleep on so that you can make the most of the floor space. If you want to sleep before security, go to the check-in area in the northwest corner of terminal 2 or take a seat on one of the circular armrest-free seats in the baggage claim area.

  • Are there parking services at SAN airport?

    The San Diego International Airport is situated three miles to the north of the city's central business district. There are four designated parking lots or garages that provide on-site parking for passengers leaving from SAN. These lots or garages include Terminal 1 Parking, Terminal 2 Parking, Terminal 2 Parking Plaza, and Long Term Parking. In addition, the airport grounds are home to a pair of Curbside Valets.

  • What is the cheapest flight from San Diego to San Antonio?

    In the last 3 days, the lowest price for a flight from San Diego to San Antonio was $51 for a one-way ticket and $134 for a round-trip.

  • Do I need a passport to fly between San Diego and San Antonio?

    A passport is not required to fly from San Diego to San Antonio.

  • Which airports will I be using when flying from San Diego to San Antonio?

    When flying out of San Diego you will be using San Diego. You will be landing at San Antonio, also known as San Antonio.

  • Which airlines offer Wi-Fi service onboard planes from San Diego to San Antonio?

    American Airlines, Delta, and Alaska Airlines offer inflight Wi-Fi service on the San Diego to San Antonio flight route.

  • Which aircraft models fly most regularly from San Diego to San Antonio?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the San Diego to San Antonio flight route.

  • Which airline alliances offer flights from San Diego to San Antonio?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Diego and San Antonio, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from San Diego to San Antonio?

    There are nonstop flights from San Diego to San Antonio on a daily basis.

  • Which is the best airline for flights from San Diego to San Antonio, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Diego to San Antonio are Southwest and Delta. With an average price for the route of $442 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $336 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Diego 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 from San Diego to San Antonio.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego 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 to San Diego with another airline. Booking your flights between San Diego and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego 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 from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Diego to San Antonio

  • Looking for a cheap flight? 25% of our users found flights on this route for $233 or less one-way and $377 or less round-trip.
  • At San Diego International Airport (SAN), travelers departing from terminal 2 have access to the Aspire Lounge, independent of the class that they are traveling in or the airline that they are flying with. Guests who enter this lounge have access to a wide array of services, including free access to high-speed internet, showers, specialized work areas and facilities, and an extensive assortment of food and beverages.
  • There are nursing rooms available for breastfeeding parents at SAN Airport. The rooms are located behind the security checkpoints - terminal 1 has one and terminal 2 has two.
  • At San Diego International Airport (SAN), they make it easy for your pet to relieve themselves by providing state-of-the-art facilities specifically designed for that purpose. Visit one of the seven pet relief areas if you are traveling with an animal. These areas have been outfitted with artificial grass, pet waste bags, and even a fire hydrant to promote participation.
  • The San Antonio International Airport (SAT) provides a number of financial services for your convenience, including ATMs in the ticketing lobby, concourses, and baggage claim area of terminal A. Marcy's Business Travel Center, which is located in the lobby of terminal A, provides currency exchange services. Charging stations for charging your devices can be found throughout terminals.
  • SAT Airport is dedicated to providing all of its guests with a travel experience that is as stress-free and secure as possible. Aging and disabled passengers, as well as those who are traveling with newborns and young children, will find that the airport is built to maximize their mobility, comfort, and convenience.

Prefer to fly direct from San Diego to San Antonio?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Diego to San Antonio.
Find which airlines fly direct from San Diego Airport to San Antonio Airport, which days they fly and book direct flights.

Direct departures

San Diego to San Antonio

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

San Antonio to San Diego

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 5 airlines serving from San Diego to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from San Diego to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego 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.
7.9
SouthwestOverall score based on 4250 reviews
8.6Crew
8.0Comfort
7.5Entertainment
7.0Food
8.1Boarding
Airline reviews

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

8.0 ExcellentRussell, Dec 2025
SAN - OAK
Read more Southwest reviews

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

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

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

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.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

A little late at the start but all worked out well.

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

I appreciated that it was on time, safe and professional. I didn’t like that I wasn’t in a place where I had a window at my window seat. It would have been nice to know that in advance. If it was mentioned in the ticketing, I didn’t notice it.

I have a gluten allergy so didn't have any food

Baggage handling poor. Second time this has happened. My bag went to San Francisco instead of Fiji. No apology. Luckily Nadi airport staff are fantastic. My bag arrived in Fiji the next day.

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

Delayed delayed delayed and no offer for food or vouchers

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

Flight was good and on time. Everyone was nice. Seats aren't very comfortable

The seats are too small the plane makes weird noise when landing 🛬

The staff was very very rude in Las Vegas when boarding the flight. When presenting the boarding ticket. Las Vegas flight, it was hot and stuffy, it smelled really bad.

For the minimalist experience, it is really a great ride-- feels a little like public transport i guess

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

My flight was canceled I was promised a reginf still not received.

The confirmation # CK8GNW and my name was not recognized/in Frontier system. I was able to check in on Frintier app so i went to the Frontier ticket agent, at time they told me that my name/ confirmation did not show up as a purchased ticket. I had to purchase a new ticket that cost $289.00 one way.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Worst airline experience. They were rude and kept changing our seats and/or giving our seats away so our family didn’t get to sit with each other. Almost everyone we dealt with at both airports with this airline was rude. The app kept giving us wrong information making things take longer. Dealing with them before TSA can take close to an hour…longer than I’ve ever had to deal with before. Never using this airline again.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Everything you need to know for your flight from San Diego to San Antonio

Information on your arrival and departure airports