San Diego

$71+ Cheap flights from San Antonio to San Diego (SAT - SAN)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SAN
Oct 17 — Oct 241
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Cheapflights Tip: The best prices from San Antonio to San Diego are usually found in October or August, booked 65 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from San Antonio to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to San Diego (SAN). 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 17, 2025.

Round-trip from

$143
(Kiwi.com)

One-way from

$71
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$331

Good round-trip deal

$309 or less

Good one-way deal

$171 or less
From San Antonio to San Diego
One-way flight from San Antonio to San Diego
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from San Antonio to San Diego.
Price to beat on a one-way flight from San Antonio to San Diego.

Find flight deals from San Antonio to San Diego

Cheapest flights from San Antonio to San Diego
Explore the most affordable flight options available from San Antonio to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Orbitz deal was found by Cheapflights users on 9/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/222:01 pmSAT - SAN
1 stop11h 16mMultiple Airlines
Mon 9/296:15 amSAN - SAT
1 stop8h 32mMultiple Airlines
Deal found 9/15$138
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 9/298:20 pmSAT - SAN
1 stop5h 33mFrontier
Thu 10/26:25 amSAN - SAT
1 stop4h 58mFrontier
Deal found 9/15$143
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Mon 9/222:01 pmSAT - SAN
1 stop11h 16mFrontier
Mon 10/66:35 amSAN - SAT
1 stop10h 40mFrontier
Deal found 9/15$144
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Thu 9/259:33 pmSAT - SAN
1 stop16h 15mFrontier
Mon 9/296:35 amSAN - SAT
1 stop10h 40mFrontier
Deal found 9/15$155
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:00 amSAT - SAN
1 stop5h 37mAmerican Airlines
Tue 10/286:15 amSAN - SAT
1 stop5h 32mAmerican Airlines
Deal found 9/15$159
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/178:20 pmSAT - SAN
1 stop5h 30mFrontier
Sun 10/198:11 amSAN - SAT
1 stop23h 58mFrontier
Deal found 9/15$161
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/19:47 pmSAT - SAN
1 stop11h 42mMultiple Airlines
Sun 10/59:03 pmSAN - SAT
1 stop20h 12mMultiple Airlines
Deal found 9/16$163
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/318:15 pmSAT - SAN
1 stop5h 35mMultiple Airlines
Mon 11/33:59 pmSAN - SAT
1 stop5h 41mMultiple Airlines
Deal found 9/15$164
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/56:23 pmSAT - SAN
1 stop20h 12mMultiple Airlines
Sun 11/911:34 amSAN - SAT
1 stop19h 40mMultiple Airlines
Deal found 9/15$167
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/19:47 pmSAT - SAN
1 stop11h 42mMultiple Airlines
Wed 10/86:41 amSAN - SAT
1 stop6h 33mMultiple Airlines
Deal found 9/15$169
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/238:26 pmSAT - SAN
1 stop5h 24mMultiple Airlines
Mon 10/273:23 pmSAN - SAT
1 stop6h 17mMultiple Airlines
Deal found 9/17$171
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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.
Sat 9/279:47 pmSAT - SAN
1 stop11h 42mSpirit Airlines
Tue 9/301:35 pmSAN - SAT
1 stop5h 17mSpirit Airlines
Deal found 9/16$173

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to San Diego 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 17, 2025.
Use the filters below to find and compare flights from San Antonio to San Diego that are best for you.

Fly from

San Antonio

Fly to

San Diego

Route

Depart

Return

Price

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Sat 10/25

2:04 pm-8:51 pm

1 stop8h 47m

San Diego

Wed 10/29

2:24 pm-7:48 pm

1 stop27h 24m

$144

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 9/25

9:33 pm-11:48 am

1 stop16h 15m

San Diego

Mon 9/29

6:35 am-7:15 pm

1 stop10h 40m

$155

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Wed 10/15

3:59 pm-7:26 am

2 stops17h 27m

San Diego

Wed 10/22

6:41 am-3:14 pm

1 stop6h 33m

$202

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 10/16

8:26 pm-12:11 pm

2 stops17h 45m

San Diego

Thu 10/23

6:25 am-1:19 pm

1 stop4h 54m

$209

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Sat 11/1

2:14 pm-9:07 pm

2 stops8h 53m

San Diego

Sat 11/8

1:47 pm-9:20 pm

1 stop5h 33m

$214

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Wed 10/8

7:00 am-9:20 pm

1 stop16h 20m

San Diego

Sun 10/12

12:46 pm-10:09 am

2 stops19h 23m

$235

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Fri 10/31

4:24 pm-12:13 am

2 stops9h 49m

San Diego

Mon 11/3

8:40 pm-8:48 am

2 stops10h 08m

$241

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 10/30

8:43 pm-11:49 am

2 stops17h 06m

San Diego

Sun 11/2

5:41 am-9:01 pm

2 stops13h 20m

$326

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Wed 10/15

6:00 pm-6:55 pm

Nonstop2h 55m

San Diego

Wed 10/22

10:15 am-3:10 pm

Nonstop2h 55m

$337

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Sat 10/25

4:39 pm-8:25 pm

1 stop5h 46m

San Diego

Tue 10/28

7:50 pm-8:48 am

2 stops10h 58m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 19 results
1
2

The best insider tips for San Antonio to San Diego flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to San Diego trip
Airports
SAT

For easy parking, consider the economy lots with shuttle service for better value on longer trips.

Read more about SATby Ramsey Qubein
SAN

Use the free San Diego Flyer shuttle for convenient transport between SAN and Old Town Transit Center.

Read more about SANby Blane Bachelor
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on SAT

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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

Have a flexible travel schedule? Discover the best time to fly to San Diego from San Antonio 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 Antonio to San Diego

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to San Diego. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from San Antonio to San Diego, you should look to book at least 65 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 Antonio to San Diego?

Currently, August is the cheapest month in which you can book a flight from San Antonio to San Diego (average of $286). Flying from San Antonio to San Diego in March is currently the most expensive (average of $366). 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 SAT to SAN?

Find hourly flight availability from San Antonio to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

One of the essential ways to save on airfare from San Antonio to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 7% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from San Antonio to San Diego. Price data was last updated on September 14, 2025.

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

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from San Antonio to San Diego, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
8.0
Very good

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to San Diego. 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 Antonio to San Diego?

    You will need to book a flight from San Antonio to San Diego if you want to fly from San Antonio to San Diego. At least 7 different airlines have flights from San Antonio (SAT) to San Diego (SAN) on a regular basis. There is 1 flight to San Diego from the San Antonio airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SAT to SAN to be around 2h 50m.

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

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

    A quick flight from San Antonio to San Diego can take about 8h 47m. Frontier provides one of the quickest options available for as low as $144. The distance between San Antonio and San Diego is about 1127 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Spirit Airlines, at $96, was found to be the cheapest airline from San Antonio to San Diego.Alternate airlines to your destination round-trip include Frontier and Alaska Airlines. Spirit Airlines is priced at 74% lower than the current average price of a flight leaving 3 months from now.

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

    Looking for the cheapest flight from San Antonio to San Diego? While on average our users pay $325, our data indicates the cheapest price to be $105. The most popular route (San Antonio - San Diego), is priced around $151.

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

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

    Most Las Vegas visitors opt to spend their time experiencing Fremont Street Experience, Fountains of Bellagio, and The Colosseum at Caesars Palace. Fremont Street Experience, Fountains of Bellagio, and The Colosseum at Caesars Palace are located about 5.9 mi, 2.3 mi, and 2.6 mi, respectively from Las Vegas Harry Reid Intl. Travelers in need of a car in Las Vegas can rent one for about $59 per day.

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

    The majority of Dallas visitors spend their time at American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion. 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 $48 to make sightseeing during their layover a little easier.

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to San Diego 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 Antonio to San Diego?

    Currently, August is the cheapest month in which you can book a flight from San Antonio to San Diego (average of $286). Flying from San Antonio to San Diego in March is currently the most expensive (average of $366). 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 Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City

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Alternative routes for San Antonio to San Diego

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

Top 7 airlines flying from San Antonio to San Diego

Discover the top 7 airlines that operate flights from San Antonio to San Diego. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$211FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$222FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$227Average$437FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$379FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$445FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$518FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$297Average$448FlexibilityNo cancel feeOn-time63%

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