San Antonio

$56+ Cheap flights from San Diego to San Antonio (SAN - SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SAT
Jan 3 — Jan 101
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Find cheap flights from San Diego to San Antonio with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Diego to San Antonio are usually found in October or August, booked 28 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from San Diego to San Antonio

Cheapest flights from San Diego to San Antonio
Explore the most affordable flight options available from San Diego to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:25 amSAN - SAT
1 stop24h 58mFrontier
Mon 12/2212:18 pmSAT - SAN
2 stops23h 39mFrontier
Deal found 12/3$205
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:25 amSAN - SAT
1 stop24h 58mFrontier
Fri 1/26:45 amSAT - SAN
2 stops28h 02mFrontier
Deal found 12/3$207
This Frontier deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:47 pmSAN - SAT
1 stop5h 30mFrontier
Thu 1/12:09 pmSAT - SAN
1 stop11h 50mFrontier
Deal found 12/2$208
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:25 amSAN - SAT
1 stop24h 58mFrontier
Sun 1/42:01 pmSAT - SAN
2 stops25h 14mFrontier
Deal found 12/3$209
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:47 pmSAN - SAT
1 stop19h 09mFrontier
Sun 12/141:51 pmSAT - SAN
1 stop24h 47mFrontier
Deal found 12/2$211
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:47 pmSAN - SAT
2 stops14h 36mMultiple Airlines
Wed 12/315:10 amSAT - SAN
1 stop9h 01mMultiple Airlines
Deal found 12/2$214
This Mytrip deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:34 amSAN - SAT
1 stop28h 40mFrontier
Thu 12/252:09 pmSAT - SAN
1 stop7h 06mFrontier
Deal found 12/3$216
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:14 pmSAN - SAT
2 stops25h 03mFrontier
Tue 1/65:10 pmSAT - SAN
1 stop20h 58mFrontier
Deal found 12/2$217
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:06 pmSAN - SAT
1 stop14h 29mMultiple Airlines
Tue 1/65:10 pmSAT - SAN
1 stop20h 58mMultiple Airlines
Deal found 12/2$219
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:57 amSAN - SAT
1 stop20h 26mFrontier
Fri 1/26:45 amSAT - SAN
2 stops28h 02mFrontier
Deal found 12/3$220
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:10 pmSAN - SAT
1 stop17h 13mFrontier
Tue 12/3010:18 amSAT - SAN
1 stop25h 39mFrontier
Deal found 12/2$221

Find flight deals from San Diego to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 4, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$204
(Kiwi.com)

One-way from

$56
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$399

Good round-trip deal

$377 or less

Good one-way deal

$181 or less
Provider with most accurate pricing for San Diego-San Antonio flight deals.
Provider most trusted by Cheapflights users for San Diego-San Antonio flights.
From San Diego to San Antonio
One-way flight from San Diego to San Antonio
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from San Diego to San Antonio.
Price to beat on a one-way flight from San Diego to San Antonio.

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from San Diego to San Antonio that are best for you.

Fly from

San Diego

Fly to

San Antonio

Route

Depart

Return

Price

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Mon 12/8

6:34 am-6:58 pm

1 stop10h 24m

San Antonio

Mon 12/15

7:43 pm-11:59 pm

1 stop6h 16m

$258

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sun 2/15

4:22 pm-9:18 am

1 stop14h 56m

San Antonio

Wed 2/18

4:13 pm-10:46 pm

1 stop8h 33m

$265

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sun 12/28

1:06 pm-5:35 am

1 stop14h 29m

San Antonio

Wed 12/31

2:09 pm-9:57 am

2 stops21h 48m

$283

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Thu 1/8

1:00 pm-10:57 pm

2 stops7h 57m

San Antonio

Mon 1/12

11:43 am-7:54 pm

2 stops10h 11m

$307

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Thu 1/29

8:59 pm-5:45 pm

2 stops18h 46m

San Antonio

Sun 2/1

6:46 pm-1:19 pm

1 stop20h 33m

$331

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Tue 2/10

6:15 am-1:48 pm

1 stop5h 33m

San Antonio

Mon 2/16

4:29 pm-10:50 pm

1 stop8h 21m

$338

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Mon 2/9

2:20 pm-12:38 am

1 stop8h 18m

San Antonio

Mon 2/16

4:29 pm-10:50 pm

1 stop8h 21m

$338

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Thu 1/15

1:05 pm-9:45 pm

1 stop6h 40m

San Antonio

Mon 1/19

6:50 am-8:00 am

Nonstop3h 10m

$339

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Fri 1/16

6:15 am-4:53 pm

2 stops32h 38m

San Antonio

Mon 1/19

4:43 pm-10:37 pm

1 stop7h 54m

$339

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sat 1/10

6:35 am-2:43 pm

1 stop6h 08m

San Antonio

Wed 1/14

7:35 am-12:22 pm

1 stop6h 47m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from San Diego to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to San Antonio in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-San Antonio flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Diego-San Antonio flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Diego-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-San Antonio flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Diego to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to San Antonio. Price data was last updated on November 28, 2025.

To ensure you get the cheapest price possible for a flight from San Diego to San Antonio, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Diego to San Antonio?

Currently, September is the cheapest month in which you can book a flight from San Diego to San Antonio (average of $88). Flying from San Diego to San Antonio in March is currently the most expensive (average of $147). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to SAT?

Find hourly flight availability from San Diego to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 49% on flights from San Diego to San Antonio by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to San Antonio. Price data was last updated on November 29, 2025.

Travelers seeking maximum savings on their San Diego to San Antonio flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated December 4, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American Airlines from San Diego to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from San Diego to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from San Diego to San Antonio?

    If you wish to fly to San Antonio from San Diego, then you need to book flights from San Diego to San Antonio. There is 1 flight from San Diego (SAN) to San Antonio (SAT) per day to choose from. Flights to San Antonio from San Diego are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 2h 40m is how long a nonstop flight from San Diego to San Antonio typically takes.

  • How popular is this San Diego to San Antonio flight route?

  • How long is the flight from San Diego to San Antonio?

    There are many flights that can get you from San Diego to San Antonio in 7h 57m. Fly via Frontier, United Airlines, or Alaska Airlines to get the fastest option. There are 1127 mi between San Diego and San Antonio. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from San Diego to San Antonio round-trip?

    United Airlines, at $100, was found to be the cheapest airline from San Diego to San Antonio.Alternate airlines to your destination round-trip include Frontier and Spirit Airlines. United Airlines is priced at 73% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San Diego to San Antonio one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $51. However, be on the lookout for offers from Frontier and United Airlines, as they are both options that can get you from San Diego to San Antonio for a low price.

  • What are the cheapest flights from San Diego to San Antonio?

    The cheapest flight price from San Diego to San Antonio is $158. On average you can expect to pay $340. The most popular route, (San Diego - San Antonio), can usually be booked for $147.

  • Where are the most common layover locations when flying from San Diego to San Antonio?

  • What are some popular things to do or see while on a layover in Phoenix?

    Phoenix travelers tend to visit Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall more than anywhere else. Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are located about 4.0 mi, 16.7 mi, and 4.3 mi, respectively from Phoenix Sky Harbor Intl. Travelers in need of a car in Phoenix can rent one for about $51 per day.

  • Where are the least popular layover locations for San Diego to San Antonio flights?

  • Can I find deals for flights from San Diego to San Antonio that include hotel bookings?

    Yes. In addition to deals on San Diego to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to San Antonio.

  • Can I find deals for business class flights from San Diego to San Antonio?

    Yes. Cheapflights offers flight deals from San Diego to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, September is the cheapest month in which you can book a flight from San Diego to San Antonio (average of $88). Flying from San Diego to San Antonio in March is currently the most expensive (average of $147). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for San Diego to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Diego to San Antonio

Discover the top 6 airlines that operate flights from San Diego to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$100Average$678FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$127Average$186FlexibilityNo cancel feeOn-time65%
FrontierCheapest$143Average$190FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$439FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$336FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$290Average$441FlexibilityNo cancel feeOn-time63%

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