SAT - SAN

$72 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 5/12. 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
$255
Typical prices: $269-$473
Frontier
Sat 5/30Wed 6/3
SAT - SAN • 1 stop
Cheapest non-stop
$315
Typical prices: $387-$465
Southwest
Tue 4/14Tue 4/21
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 $255 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest. Average duration is 3h 04m
Direct flights
Direct flights
+1
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Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $213 (round-trip)
Shortest trip • 5h 02m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 12% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+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
Booking Insights
Expert advice
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

Sat, May 30 - Wed, Jun 3
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
$255Frontier
Tue, Apr 28 - Mon, May 4
Frontier Logo
4:04 pm - 11:06 pm
SAT
-
SAN
9h 02m
1 stop
Frontier Logo
9:00 pm - 8:14 pm
SAN
-
SAT
21h 14m
1 stop
$256Frontier
Fri, May 15 - Mon, May 18
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
$258Frontier
Sat, Apr 18 - Mon, Apr 20
Frontier Logo
4:04 pm - 8:34 am
SAT
-
SAN
18h 30m
1 stop
Frontier Logo
12:25 pm - 3:09 pm
SAN
-
SAT
24h 44m
1 stop
$264Frontier
Sun, Apr 5 - Wed, Apr 8
Frontier Logo
6:45 am - 12:02 am
SAT
-
SAN
19h 17m
1 stop
Frontier Logo
12:00 pm - 12:19 am
SAN
-
SAT
10h 19m
1 stop
$266Frontier
Sun, Apr 5 - Wed, Apr 8
Frontier Logo
6:45 am - 12:02 am
SAT
-
SAN
19h 17m
1 stop
Frontier Logo
6:25 am - 12:19 am
SAN
-
SAT
15h 54m
1 stop
$270Frontier
Fri, May 29 - Mon, Jun 1
Frontier Logo
7:54 pm - 11:50 pm
SAT
-
SAN
5h 56m
1 stop
Frontier Logo
10:07 pm - 8:14 pm
SAN
-
SAT
20h 07m
1 stop
$275Frontier
Wed, Apr 8 - Mon, Apr 13
Frontier Logo
7:45 am - 7:21 am
SAT
-
SAN
25h 36m
2 stops
Frontier Logo
6:25 am - 12:19 am
SAN
-
SAT
15h 54m
1 stop
$276Frontier
Mon, Aug 10 - Fri, Aug 14
Delta Logo
8:00 am - 12:33 pm
SAT
-
SAN
6h 33m
1 stop
Delta Logo
6:15 am - 2:42 pm
SAN
-
SAT
6h 27m
1 stop
$277Delta
Thu, May 14 - Mon, May 18
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
$279Frontier
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 Mondays 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 4 weeks before departure, which saves you about 12% 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$72
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 2% increase in price.
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 $72 for a one-way ticket and $255 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, 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 737-800 Passenger/BBJ2 (winglets) 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 $442 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $378 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 $177 or less one-way and $398 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

Southwest

Sunday

Southwest

Southwest

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.
8.0
SouthwestOverall score based on 4320 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

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.

8.0 ExcellentTobin, Mar 2026
SJC - BUR
Read more Southwest reviews

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.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

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.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

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.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Flight was delayed more than 3 hours, and the metro had stopped running by the time we got to the terminal well past midnight, so I was stranded, alone, with no way to get home until the metro started up the next morning.

My flight was cancelled I missed time at work and got a parking ticket

Crew was very nice. Take off and landing were great. Economy seats are not comfortable. Extra cost for snacks.

The flight was delayed by 2 hours and we had no food or water or chargers

Horribly late because they had no crew!!! And then jet bridge didn’t work!! Then we arrived at a gate at lax miles away that we had to take a shuttle to a terminal!! I was over 3 hours late to getting the LA! Should have been here at 8:30 and at an appointment at 10:30 and arrived and left lax at 11 am!! Horrible experience!!!

Once again, the staff seem to think they are above the customers and treat everyone with disdain, belittling people.

Flight was canceled 8 hours before departure for lack of operational control and prepositioning of a plane. Then had the audacity to say it was because of weather, however there was no weather here in California or New Orleans or in between. It was the weather in Florida, Florida it had nothing to do with our flight path just the plane was supposed to fly us. 8 hours is more than enough time to move a plane anywhere in the US. That left me with a bill of 1200 dollars to re book a flight oh and kayaks insurance what a joke. Probably will never use kayak or spirit ever again terrible companies terrible customer service. I’ll also let everyone and anyone know this was an abomination and only for the customer. Also will be making a report to the DOT on bad business practices on behalf of kayak and spirit as well as the BBB. Do better, take care of your customers and don’t suck

The airplane had a strange noise that was constant throughout the flight. Thankfully I had noise-cancelling over-ear headphones that muted much of it.

it was terrible. flight was cancelled hours before the flight without a given reason and no other booking available .

The plane was freezing and everyone had on their winter coats. I pulled out my sweaters out of my carryon to cover myself and put on an extra pair of socks. They offered NO FREE drinks or snacks on a 6 hour flight. The seats don’t have plugs or charges or any form of entertainment- so I just played my one downloaded game on my phone because I couldn’t sleep because I was too cold. Miserable flight though we landed safely.

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