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$54+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 Tuesday

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 June 12, 2025.

Round-trip from

$172
(Cheapflightsfares)

One-way from

$56
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$397

Good round-trip deal

$373 or less

Good one-way deal

$213 or less
From San Antonio to San Diego
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One-way flight from San Antonio to San Diego
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Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from San Antonio to San Diego.
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Price to beat on a one-way flight from San Antonio to San Diego.
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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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/9. 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.
Mon 9/156:00 amSAT - SAN
1 stop10h 11mSpirit Airlines
Sat 9/203:10 pmSAN - SAT
1 stop11h 54mSpirit Airlines
Deal found 6/9$172
This Frontier deal was found by Cheapflights users on 6/10. 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.
Tue 7/12:55 pmSAT - SAN
1 stop5h 11mFrontier
Tue 7/86:25 amSAN - SAT
1 stop9h 37mFrontier
Deal found 6/10$256
This Priceline deal was found by Cheapflights users on 6/9. 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 7/217:52 pmSAT - SAN
1 stop5h 14mMultiple Airlines
Sun 7/276:25 amSAN - SAT
1 stop10h 48mMultiple Airlines
Deal found 6/9$282
This Southwest deal was found by Cheapflights users on 6/10. 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.
Sat 7/268:00 pmSAT - SAN
1 stop5h 20mSouthwest
Wed 8/66:00 pmSAN - SAT
Nonstop2h 50mSouthwest
Deal found 6/10$297
This Delta deal was found by Cheapflights users on 6/11. 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.
Fri 7/116:35 amSAT - SAN
1 stop8h 16mDelta
Fri 7/115:00 pmSAN - SAT
1 stop5h 35mDelta
Deal found 6/11$359
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:04 pmSAT - SAN
1 stop11h 10mUnited Airlines
Mon 9/297:20 pmSAN - SAT
2 stops13h 29mUnited Airlines
Deal found 6/11$362
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:40 amSAT - SAN
2 stops14h 35mAlaska Airlines
Thu 10/236:15 amSAN - SAT
2 stops10h 33mAlaska Airlines
Deal found 6/12$365

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 June 12, 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

Mon 9/15

6:00 am-2:11 pm

1 stop10h 11m

San Diego

Sat 9/20

3:10 pm-5:04 am

1 stop11h 54m

$172

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 7/1

2:55 pm-6:06 pm

1 stop5h 11m

San Diego

Tue 7/8

6:25 am-6:02 pm

1 stop9h 37m

$256

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Wed 7/2

4:20 pm-11:29 pm

1 stop9h 09m

San Diego

Sat 7/12

6:01 pm-9:47 am

1 stop13h 46m

$273

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Sat 7/26

8:00 pm-11:20 pm

1 stop5h 20m

San Diego

Wed 8/6

6:00 pm-10:50 pm

Nonstop2h 50m

$297

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Fri 7/11

5:56 pm-11:44 pm

2 stops7h 48m

San Diego

Sat 7/12

3:25 pm-10:59 pm

1 stop5h 34m

$348

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Wed 10/8

6:40 am-5:10 pm

2 stops12h 30m

San Diego

Tue 10/14

12:18 pm-11:59 pm

2 stops9h 41m

$358

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Fri 7/11

6:35 am-12:51 pm

1 stop8h 16m

San Diego

Fri 7/11

5:00 pm-12:35 am

1 stop5h 35m

$359

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Wed 9/10

6:00 am-2:11 pm

1 stop10h 11m

$54

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 10/14

6:00 am-2:10 pm

1 stop10h 10m

$121

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Mon 9/15

6:00 pm-6:50 pm

Nonstop2h 50m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 15 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 9, 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 June 12, 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 5% 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 8, 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.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from San Antonio to San Diego have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    Within the past month, 3 users have taken a look at flights from San Antonio to San Diego.

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

    Spirit Airlines, at $172, was found to be the cheapest airline from San Antonio to San Diego.Alternate airlines to your destination round-trip include Frontier and Southwest. Spirit Airlines is priced at 53% 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 $129 and $144 on Southwest and United Airlines, 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 $341, our data indicates the cheapest price to be $153. The most popular route (San Antonio - San Diego), is priced around $139.

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

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

  • 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 $55 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 $61 to make sightseeing during their layover a little easier.

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

    Flights departing from San Antonio and landing in San Diego layover in Phoenix least frequently.

  • 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
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

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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.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$110Average$201FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$115Average$205FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$213Average$415FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$216Average$291FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$379FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$294Average$516FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$335Average$447FlexibilityNo cancel feeOn-time63%

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