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$43+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SAT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$136
(CheapOair)

One-way from

$43
(Priceline)

Popular in

December

Cheapest in

August

Average price

$346

Good round-trip deal

$367 or less

Good one-way deal

$270 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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Highest demand for flights based on searches. 7% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This CheapOair deal was found by Cheapflights users on 7/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:15 amSAN - SAT
1 stop12h 22mSpirit Airlines
Sun 10/512:36 pmSAT - SAN
1 stop13h 09mSpirit Airlines
Deal found 7/3$136
This Priceline deal was found by Cheapflights users on 7/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/91:32 pmSAN - SAT
1 stop5h 05mMultiple Airlines
Sat 9/133:22 pmSAT - SAN
1 stop9h 02mMultiple Airlines
Deal found 7/2$149
This Priceline deal was found by Cheapflights users on 7/1. 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.
Sat 9/138:00 amSAN - SAT
1 stop5h 50mFrontier
Mon 9/158:20 pmSAT - SAN
1 stop5h 33mFrontier
Deal found 7/1$158
This Southwest deal was found by Cheapflights users on 7/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/56:00 pmSAN - SAT
Nonstop2h 50mSouthwest
Tue 8/128:30 amSAT - SAN
Nonstop2h 50mSouthwest
Deal found 7/2$197

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 July 3, 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

Fri 10/3

6:15 am-8:37 pm

1 stop12h 22m

San Antonio

Sun 10/5

12:36 pm-11:45 pm

1 stop13h 09m

$136

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Tue 9/9

1:32 pm-8:37 pm

1 stop5h 05m

San Antonio

Sat 9/13

3:22 pm-10:24 pm

1 stop9h 02m

$149

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sat 9/13

8:00 am-3:50 pm

1 stop5h 50m

San Antonio

Mon 9/15

8:20 pm-11:53 pm

1 stop5h 33m

$158

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Tue 8/5

6:00 pm-10:50 pm

Nonstop2h 50m

San Antonio

Tue 8/12

8:30 am-9:20 am

Nonstop2h 50m

$197

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sat 9/20

8:00 am-3:50 pm

1 stop5h 50m

$43

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Tue 9/9

1:32 pm-8:37 pm

1 stop5h 05m

$54

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Thu 11/6

6:15 pm-10:55 pm

Nonstop2h 40m

$99

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Thu 11/6

12:30 pm-7:23 pm

1 stop4h 53m

$104

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Mon 8/18

7:27 pm-8:57 am

2 stops11h 30m

$109

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sat 11/8

2:00 pm-12:05 am

1 stop8h 05m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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 June 27, 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 July 3, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 17% 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 June 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. 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 July 3, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United 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
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Spirit Airlines
6.3
Okay
8,086 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 5 times in the past calendar month.

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

    Spirit Airlines, at $136, was found to be the cheapest airline from San Diego to San Antonio.Alternate airlines to your destination round-trip include Frontier and Southwest. Spirit Airlines is priced at 64% 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 Frontier, with whom users have recently found tickets for as low as $43. However, be on the lookout for offers from Spirit Airlines and Southwest, 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 $180. On average you can expect to pay $439. The most popular route, (San Diego - San Antonio), can usually be booked for $139.

  • 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 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 $49 per day.

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

    American Airlines Center, Dallas World Aquarium, and Reunion Tower are currently the most popular points of interest in Dallas at the moment. American Airlines Center, Dallas World Aquarium, and Reunion Tower can be visited by traveling about 15.0 mi, 15.5 mi, and 15.6 mi respectively from Dallas/Fort Worth. Travelers can rent a car at Dallas/Fort Worth for an average daily rate of $53 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

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Alternative routes for San Diego to San Antonio

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$105Average$187FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$194FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$227Average$394FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$415FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$324Average$443FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$338Average$494FlexibilityNo cancel feeOn-time69%

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