San Diego

$56+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SAN
Jul 8 — Jul 151
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Cheapflights Tip: The best prices from San Antonio to San Diego are usually found in August or September, booked 77 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 July 3, 2025.

Round-trip from

$195
(FlightHub)

One-way from

$56
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$397

Good round-trip deal

$367 or less

Good one-way deal

$234 or less
From San Antonio to San Diego
One-way flight from San Antonio to San Diego
Highest demand for flights based on searches. 5% potential increase in price ($22 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 July 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 July 3, 2025.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/303:34 pmSAT - SAN
1 stop8h 34mMultiple Airlines
Sat 9/66:15 amSAN - SAT
1 stop12h 22mMultiple Airlines
Deal found 7/3$195
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:00 pmSAT - SAN
Nonstop2h 50mSouthwest
Thu 8/147:00 pmSAN - SAT
Nonstop2h 50mSouthwest
Deal found 7/1$197
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/212:50 pmSAT - SAN
1 stop5h 06mSpirit Airlines
Mon 8/256:15 amSAN - SAT
2 stops11h 08mSpirit Airlines
Deal found 7/1$198
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/263:06 pmSAT - SAN
1 stop5h 13mFrontier
Wed 7/307:04 pmSAN - SAT
1 stop16h 02mFrontier
Deal found 7/2$200
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:00 amSAT - SAN
1 stop5h 20mAmerican Airlines
Sat 8/239:45 amSAN - SAT
1 stop5h 13mAmerican Airlines
Deal found 7/2$224
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/308:00 amSAT - SAN
1 stop10h 16mDelta
Sat 9/66:15 amSAN - SAT
1 stop7h 52mDelta
Deal found 7/2$241

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 July 3, 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 8/30

3:34 pm-10:08 pm

1 stop8h 34m

San Diego

Sat 9/6

6:15 am-8:37 pm

1 stop12h 22m

$195

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 8/7

6:00 pm-6:50 pm

Nonstop2h 50m

San Diego

Thu 8/14

7:00 pm-11:50 pm

Nonstop2h 50m

$197

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 8/21

2:50 pm-5:56 pm

1 stop5h 06m

San Diego

Mon 8/25

6:15 am-7:23 pm

2 stops11h 08m

$198

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Sat 7/26

3:06 pm-6:19 pm

1 stop5h 13m

San Diego

Wed 7/30

7:04 pm-1:06 pm

1 stop16h 02m

$200

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Mon 8/18

5:00 am-8:20 am

1 stop5h 20m

San Diego

Sat 8/23

9:45 am-4:58 pm

1 stop5h 13m

$224

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Sat 8/30

8:00 am-4:16 pm

1 stop10h 16m

San Diego

Sat 9/6

6:15 am-4:07 pm

1 stop7h 52m

$241

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 9/16

9:32 pm-7:21 am

1 stop11h 49m

$56

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Sat 8/2

3:06 pm-6:19 pm

1 stop5h 13m

$66

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 8/28

7:25 am-8:20 am

Nonstop2h 55m

$99

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 8/28

8:36 pm-12:11 am

1 stop5h 35m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 11 results
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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 June 27, 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 77 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 July 3, 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 6% 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 June 29, 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. Saturday afternoons 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 July 3, 2025.
Read through reviews of airlines operating flights from San Antonio to San Diego, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
8.0
Very good

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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?

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

    Southwest, at $197, was found to be the cheapest airline from San Antonio to San Diego.Alternate airlines to your destination round-trip include Spirit Airlines and Frontier. Southwest is priced at 46% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $56. Users have also found prices from $66 and $99 on Frontier and Southwest, respectively.

  • 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 $389, our data indicates the cheapest price to be $128. The most popular route (San Antonio - San Diego), is priced around $132.

  • 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, The Colosseum at Caesars Palace, and Fountains of Bellagio. Fremont Street Experience, The Colosseum at Caesars Palace, and Fountains of Bellagio are located about 5.9 mi, 2.6 mi, and 2.3 mi, respectively from Las Vegas Harry Reid Intl. Travelers in need of a car in Las Vegas can rent one for about $54 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 Reunion Tower. 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 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 Antonio?

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

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$205FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$205FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$166Average$418FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$221Average$414FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$381FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$294Average$516FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$321Average$448FlexibilityNo cancel feeOn-time63%

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