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San Antonio

$69+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SAT
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to San Antonio are usually found in August or September, booked 66 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap 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 September 15, 2025.

Round-trip from

$126
(Kiwi.com)

One-way from

$69
(Cheapflightsfares)

Popular in

July

Cheapest in

August

Average price

$326

Good round-trip deal

$314 or less

Good one-way deal

$131 or less
From San Diego to San Antonio
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One-way flight from San Diego to San Antonio
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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Diego to San Antonio.
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Price to beat on a one-way flight from San Diego to San Antonio.
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Find 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 September 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:15 amSAN - SAT
1 stop8h 32mSpirit Airlines
Mon 9/295:52 pmSAT - SAN
1 stop6h 34mSpirit Airlines
Deal found 9/12$113
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 9/256:25 amSAN - SAT
1 stop4h 58mMultiple Airlines
Tue 9/309:47 pmSAT - SAN
1 stop11h 42mMultiple Airlines
Deal found 9/13$126
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 9/2210:20 amSAN - SAT
1 stop6h 55mMultiple Airlines
Tue 9/309:47 pmSAT - SAN
1 stop11h 42mMultiple Airlines
Deal found 9/12$129
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 9/248:00 amSAN - SAT
1 stop27h 23mMultiple Airlines
Tue 9/309:47 pmSAT - SAN
1 stop11h 42mMultiple Airlines
Deal found 9/12$135
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 9/2210:20 amSAN - SAT
1 stop6h 55mMultiple Airlines
Fri 9/269:47 pmSAT - SAN
1 stop11h 42mMultiple Airlines
Deal found 9/12$141
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:25 amSAN - SAT
1 stop4h 58mFrontier
Mon 9/298:20 pmSAT - SAN
1 stop5h 33mFrontier
Deal found 9/13$143
This Priceline deal was found by Cheapflights users on 9/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:35 amSAN - SAT
1 stop10h 40mFrontier
Sat 10/182:04 pmSAT - SAN
1 stop8h 47mFrontier
Deal found 9/13$144
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:15 amSAN - SAT
1 stop23h 55mFrontier
Mon 9/222:01 pmSAT - SAN
1 stop11h 16mFrontier
Deal found 9/13$145
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/112:24 pmSAN - SAT
1 stop18h 50mFrontier
Sat 10/185:32 pmSAT - SAN
1 stop6h 53mFrontier
Deal found 9/13$146
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Fri 9/266:35 amSAN - SAT
1 stop9h 55mMultiple Airlines
Sun 9/289:47 pmSAT - SAN
1 stop11h 42mMultiple Airlines
Deal found 9/12$147

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 September 15, 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

Thu 9/25

6:25 am-1:23 pm

1 stop4h 58m

San Antonio

Mon 9/29

8:20 pm-11:53 pm

1 stop5h 33m

$143

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Thu 10/30

6:41 am-7:48 pm

1 stop11h 07m

San Antonio

Sun 11/2

2:04 pm-11:48 pm

1 stop11h 44m

$155

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sat 10/11

10:15 am-5:54 pm

1 stop5h 39m

San Antonio

Sat 10/18

2:25 pm-7:46 pm

2 stops7h 21m

$156

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Thu 12/11

1:53 pm-9:32 pm

1 stop5h 39m

San Antonio

Mon 12/15

5:59 pm-11:42 pm

2 stops7h 43m

$188

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Tue 10/28

9:00 am-11:40 pm

2 stops12h 40m

San Antonio

Mon 11/3

8:25 pm-11:50 pm

1 stop5h 25m

$210

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sun 11/16

3:59 pm-1:19 pm

1 stop19h 20m

San Antonio

Wed 11/19

3:02 pm-10:48 am

2 stops21h 46m

$216

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sun 10/5

9:03 pm-7:15 pm

1 stop20h 12m

San Antonio

Thu 10/9

3:32 pm-12:11 pm

2 stops22h 39m

$220

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Tue 11/4

8:00 am-3:29 pm

1 stop5h 29m

San Antonio

Thu 11/13

2:14 pm-8:05 pm

1 stop7h 51m

$231

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Wed 10/29

6:45 am-4:58 pm

1 stop8h 13m

San Antonio

Wed 11/5

1:23 pm-11:44 pm

2 stops12h 21m

$236

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Fri 11/14

7:50 pm-10:43 am

2 stops12h 53m

San Antonio

Sun 11/16

11:40 am-4:25 pm

1 stop6h 45m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 19 results
1
2

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 September 12, 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 66 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, August is the cheapest month in which you can book a flight from San Diego to San Antonio (average of $295). Flying from San Diego to San Antonio in March is currently the most expensive (average of $376). 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 September 15, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 6% on flights from San Diego to San Antonio by exploring options for tickets at noon.

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 September 7, 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. Wednesday afternoons 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 September 15, 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.
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
Delta
8.0
Very good
7,956 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
Spirit Airlines
6.3
Okay
8,016 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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?

    Flights from San Diego to San Antonio have been viewed 8 times in the past calendar month.

  • 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 4h 58m. Fly via Frontier or United 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?

    Frontier, at $118, was found to be the cheapest airline from San Diego to San Antonio.Alternate airlines to your destination round-trip include Spirit Airlines and American Airlines. Frontier is priced at 69% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest flight price from San Diego to San Antonio is $128. On average you can expect to pay $279. The most popular route, (San Diego - San Antonio), can usually be booked for $113.

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

    The most popular layover on flights from San Diego to San Antonio is Phoenix. San Diego to San Antonio flights stop in Dallas the next most.

  • 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 Heritage Square more than anywhere else. Chase Field, Desert Ridge Marketplace, and Heritage Square are located about 4.0 mi, 16.7 mi, and 4.0 mi, respectively from Phoenix Sky Harbor Intl. Travelers in need of a car in Phoenix can rent one for about $53 per day.

  • What are some popular points of interest to see during a layover in Dallas?

    American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion are currently the most popular points of interest in Dallas at the moment. American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion can be visited by traveling about 15.0 mi, 15.5 mi, and 18.3 mi respectively from Dallas/Fort Worth. Travelers can rent a car at Dallas/Fort Worth for an average daily rate of $50 to make sightseeing during their layover a little easier.

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

    San Diego to San Antonio flights that have layovers will least frequently stop in Las Vegas.

  • 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, August is the cheapest month in which you can book a flight from San Diego to San Antonio (average of $295). Flying from San Diego to San Antonio in March is currently the most expensive (average of $376). 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.
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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$189FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$126Average$191FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$238Average$458FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$252Average$521FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$336FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$297Average$445FlexibilityNo cancel feeOn-time63%

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