SAT - SAN

$99 Find Cheap Flights from San Antonio to San Diego

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 Antonio to San Diego departing on 7/4. 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 Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to San Diego.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to San Diego.
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Everything you should know

Cheapest round-trip
$245
Typical prices: $460-$307
Frontier
Fri 5/29Tue 6/2
SAT - SAN • 1 stop
Cheapest non-stop
$363
Typical prices: $581-$397
Southwest
Thu 6/18Mon 6/22
SAT - SAN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Expect short security lines at San Antonio Airport.
Use the Route 992 bus for a quick ride from SAN.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $245 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with Southwest. Average duration is 2h 55m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $225 (round-trip)
Shortest trip • 5h 04m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 10% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
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+1
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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 Diego!
Flight Deals
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Flight Deals

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

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

Fri, May 29 - Tue, Jun 2
Frontier Logo
7:54 pm - 11:50 pm
SAT
-
SAN
5h 56m
1 stop
Frontier Logo
6:25 am - 6:59 pm
SAN
-
SAT
10h 34m
1 stop
$245Frontier
Mon, Jun 15 - Thu, Jun 18
Frontier Logo
8:56 pm - 8:48 am
SAT
-
SAN
13h 52m
1 stop
Frontier Logo
9:43 am - 8:11 pm
SAN
-
SAT
8h 28m
1 stop
$248Frontier
Fri, Jun 12 - Sun, Jun 14
Frontier Logo
7:51 pm - 11:53 pm
SAT
-
SAN
6h 02m
1 stop
Frontier Logo
6:25 am - 6:56 pm
SAN
-
SAT
10h 31m
1 stop
$250Frontier
Tue, Jun 2 - Tue, Jun 9
Frontier Logo
8:59 pm - 8:47 am
SAT
-
SAN
13h 48m
1 stop
Frontier Logo
4:17 pm - 6:56 pm
SAN
-
SAT
24h 39m
2 stops
$252Frontier
Wed, May 27 - Fri, Jun 5
Frontier Logo
7:54 pm - 8:42 am
SAT
-
SAN
14h 48m
1 stop
Frontier Logo
1:38 pm - 6:59 pm
SAN
-
SAT
27h 21m
2 stops
$253Frontier
Sun, May 31 - Sat, Jun 6
Frontier Logo
7:54 pm - 11:50 pm
SAT
-
SAN
5h 56m
1 stop
Frontier Logo
9:37 am - 6:59 pm
SAN
-
SAT
7h 22m
1 stop
$254Frontier
Sun, Jun 21 - Sat, Jul 4
Frontier Logo
7:51 pm - 11:53 pm
SAT
-
SAN
6h 02m
1 stop
Frontier Logo
9:37 am - 6:56 pm
SAN
-
SAT
7h 19m
1 stop
$255Frontier
Thu, Jun 18 - Thu, Jun 25
Frontier Logo
8:56 pm - 8:48 am
SAT
-
SAN
13h 52m
1 stop
Frontier Logo
10:04 am - 6:56 pm
SAN
-
SAT
6h 52m
1 stop
$257Frontier
Wed, May 27 - Tue, Jun 2
Frontier Logo
8:59 pm - 9:12 pm
SAT
-
SAN
26h 13m
1 stop
Frontier Logo
4:17 pm - 6:59 pm
SAN
-
SAT
24h 42m
2 stops
$259Frontier
Wed, Aug 12 - Wed, Aug 19
Frontier Logo
7:51 pm - 9:05 am
SAT
-
SAN
15h 14m
1 stop
Frontier Logo
4:17 pm - 6:56 pm
SAN
-
SAT
24h 39m
2 stops
$260Frontier
Booking Insights

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

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

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

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 Antonio to San Diego departing in May.

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

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

Your flight ticket price will generally be cheaper if you fly to San Diego on a Thursday and more expensive on a Sunday. On your return trip to San Antonio, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to San Diego, 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 Antonio to San Diego is October, where tickets cost $308 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $457 and $436 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Antonio to San Diego, 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 Antonio to San Diego, you should book around 3 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Expert advice

Expert advice for your flight from San Antonio to San Diego

 
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
Brandon Schultz

Brandon Schultz

Expert on SAN and 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

Low seasonSeptember
Cheapest flight$99
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from San Antonio to San Diego

When to book flights from San Antonio to San Diego

Are your dates flexible? Find out the best times to travel from San Antonio to San Diego 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 Antonio to San Diego

  • Can I shower before leaving SAN?

    If you want to shower before leaving San Diego, you can do so at the airport’s Airspace Lounge. You'll have to pay a fee to enter this lounge which is located near gates 22 and 23 in terminal 2.

  • What are some special services I can enjoy while at SAT?

    While waiting for your flight at SAT, you can get top-notch salon and massage services at either of the BeRelax Spa locations. One is near gate 26, while the other is near gate 36. You’ll leave looking your best and feeling relaxed for your flight!

  • Is SAT an ADA-compliant airport?

    Yes, SAT is designed for maximum accessibility. This airport features automatic doors, crosswalks, ramps, level flooring, accessible entrances, and elevators to aid travelers in safely moving through the airport. To aid blind passengers, it has braille buttons in its elevators as well as outside its doors. If you are in need of wheelchair assistance, you can arrange with your airline to have someone pick you up and escort you through the airport.

  • Can I breastfeed my baby while at San Diego International Airport?

    Yes, if you need to breastfeed your baby or pump before leaving SAN, there are three lactation rooms dotted across the airport which you can use to have a quiet, private moment. One is available across from the elevator in terminal 1 west, while another is on the ground level of terminal 1 east rotunda. The other lactation room is near gates 34 and 35 in terminal 2 west.

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

    In the last 3 days, the lowest price for a flight from San Antonio to San Diego was $99 for a one-way ticket and $245 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    San Antonio airport is called San Antonio and the only airport in San Diego is San Diego.

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

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

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the San Antonio to San Diego flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Antonio to San Diego are Southwest and Delta. With an average price for the route of $445 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 $374 and an overall rating of 7.9.

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

    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 Antonio to San Diego.

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

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

    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 Diego with an airline and back to San Antonio with another airline. Booking your flights between San Antonio and SAN 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 Antonio to San Diego?

    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 Diego from San Antonio 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 Antonio to San Diego

  • Looking for a cheap flight? 25% of our users found flights on this route for $169 or less one-way and $426 or less round-trip.
  • To enter San Antonio International Airport (SAT), you must first go through the airport’s security checkpoints. The lines at these checkpoints are usually quite lengthy, so it's recommended that on the day you’re set to fly to San Diego International Airport (SAN) from SAT you reach the airport no less than 1 hour and 30 minutes before your flight.
  • If you’re an active-duty military officer, retiree, dependent, or immediate family member of one, you can wait for your flight to SAN at the USO lounge located a short distance from the gate parking lot in terminal 2. Entrance and access to amenities is free for qualified military members and their families.
  • In case you’d like to withdraw some cash at SAT, you can do so without hassle. The Bank of America operates several ATMs in the airport. In terminal 1, the ATMs are opposite the food court and near gates 1, 2, 5, and 13. In terminal 2, the ATMs are located underneath the escalator at Sunset Cove and near gates 23 and 36.
  • If you need assistance while at San Diego International Airport (SAN), don't worry. There are several Volunteer Airport Ambassadors roaming the airport who you can ask for help. Spotting one isn’t difficult, they all wear green polo t-shirts with “airport information” written on the back.
  • San Diego International Airport (SAN) has a meditation room/chapel in terminal 2. You can visit this interfaith space, irrespective of your faith or religion.

Prefer to fly direct from San Antonio to San Diego?

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

Direct departures

San Antonio to San Diego

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

San Diego to San Antonio

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

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Sunday

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See more direct flights

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

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to San Diego. 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 Antonio to San Diego? 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 4305 reviews
8.6Crew
7.0Food
7.5Entertainment
8.1Boarding
8.0Comfort
Airline reviews

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

2.0 MediocreAnonymous, May 2026
SEA - SMF
Read more Southwest reviews

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

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

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

Terrible, if possible won't be flying again anytime soon!

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

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

Information on your arrival and departure airports