$88+ Cheap flights from San Antonio to San Diego (SAT - SAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SAN
Oct 28 — Nov 41
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Antonio to San Diego are usually found in April or October, booked 2 days in advance, depart on a Wednesday or Thursday and return on a Wednesday
Cheap flight deals from San Antonio to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Antonio to San DiegoExplore 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 28, 2026.
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 28, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/23. 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.
Wed 10/218:21 pm -
1 stop5h 35m
Wed 10/284:53 pm -
1 stop24h 32m
Deal found 9/23![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 9/23. 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.
Wed 10/148:21 pm -
1 stop5h 35m
Tue 10/276:25 am -
1 stop11h 00m
Deal found 9/23![Frontier logo]()
$178
This CheapOair deal was found by Cheapflights users on 9/24. 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.
Wed 10/288:20 pm -
1 stop5h 37m
Sat 11/76:25 am -
1 stop11h 00m
Deal found 9/24![Frontier logo]()
$188
This Frontier deal was found by Cheapflights users on 9/23. 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.
Wed 10/148:21 pm -
1 stop5h 35m
Wed 10/216:25 am -
1 stop11h 01m
Deal found 9/23![Frontier logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 9/24. 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 10/248:21 pm -
1 stop5h 35m
Sat 10/316:25 am -
1 stop11h 00m
Deal found 9/24![Frontier logo]()
$193
This CheapOair deal was found by Cheapflights users on 9/24. 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.
Wed 10/288:20 pm -
1 stop5h 37m
Mon 11/28:32 pm -
1 stop23h 02m
Deal found 9/24![Frontier logo]()
$197
This Cheapflightsfares deal was found by Cheapflights users on 9/24. 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.
Fri 10/308:11 pm -
1 stop21h 47m
Mon 11/28:32 pm -
1 stop23h 02m
Deal found 9/24![Frontier logo]()
$202
This Frontier deal was found by Cheapflights users on 9/23. 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.
Wed 10/288:20 pm -
1 stop5h 37m
Fri 10/306:25 am -
1 stop10h 49m
Deal found 9/23![Frontier logo]()
$204
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 10/248:21 pm -
1 stop5h 35m
Thu 10/298:32 pm -
1 stop23h 02m
Deal found 9/28![Frontier logo]()
$206
This Booking.com deal was found by Cheapflights users on 9/25. 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.
Thu 11/58:20 pm -
1 stop5h 37m
Sat 11/76:25 am -
1 stop11h 00m
Deal found 9/25![Frontier logo]()
$207
Best flights from San Antonio to San DiegoDiscover carefully curated flight deals from San Antonio to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
Discover carefully curated flight deals from San Antonio to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
This Southwest deal was found by Cheapflights users on 9/27. 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 10/296:20 am -
Nonstop3h 00m
Tue 11/39:15 am -
Nonstop2h 45m
Deal found 9/27![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/26. 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.
Wed 10/2811:45 am -
2 stops10h 39m
Sat 11/71:31 pm -
1 stop6h 16m
Deal found 9/26![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 9/27. 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.
Fri 10/237:30 pm -
Nonstop3h 00m
Tue 10/279:05 am -
Nonstop2h 40m
Deal found 9/27![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 9/27. 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.
Fri 10/307:30 pm -
Nonstop3h 00m
Tue 11/312:45 pm -
1 stop4h 35m
Deal found 9/27![Southwest logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/155:58 pm -
1 stop5h 26m
Fri 10/167:41 pm -
2 stops11h 11m
Deal found 9/23![United Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 9/25. 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 11/126:05 am -
Nonstop3h 00m
Thu 11/127:15 pm -
Nonstop2h 40m
Deal found 9/25![Southwest logo]()
$398
This Southwest deal was found by Cheapflights users on 9/23. 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 12/225:25 am -
2 stops6h 30m
Wed 12/308:00 am -
2 stops7h 25m
Deal found 9/23![Southwest logo]()
$475
This Southwest deal was found by Cheapflights users on 9/27. 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 10/227:30 pm -
Nonstop3h 00m
Sun 10/257:45 pm -
Nonstop2h 50m
Deal found 9/27![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 9/28. 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.
Fri 10/167:30 pm -
Nonstop3h 00m
Tue 10/205:40 pm -
Nonstop2h 45m
Deal found 9/28![Southwest logo]()
$528
This Southwest deal was found by Cheapflights users on 9/23. 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 11/248:05 pm -
Nonstop2h 55m
Sat 11/287:30 pm -
Nonstop2h 40m
Deal found 9/23![Southwest logo]()
$559
Last-minute flights from San Antonio to San DiegoDiscover last-minute flight deals from San Antonio to San Diego. Data last updated September 28, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to San Diego. Data last updated September 28, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 9/23. 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.
Wed 10/148:21 pm -
1 stop5h 35m
Tue 10/276:25 am -
1 stop11h 00m
Deal found 9/23![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 9/23. 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.
Wed 10/148:21 pm -
1 stop5h 35m
Wed 10/216:25 am -
1 stop11h 01m
Deal found 9/23![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 9/23. 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.
Thu 10/158:21 pm -
1 stop5h 35m
Tue 10/206:25 am -
1 stop11h 01m
Deal found 9/23![Frontier logo]()
$213
This Cheapflightsfares deal was found by Cheapflights users on 9/23. 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.
Wed 10/218:21 pm -
1 stop5h 35m
Wed 10/284:53 pm -
1 stop24h 32m
Deal found 9/23![Frontier logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 9/24. 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 10/248:21 pm -
1 stop5h 35m
Sat 10/316:25 am -
1 stop11h 00m
Deal found 9/24![Frontier logo]()
$193
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 10/248:21 pm -
1 stop5h 35m
Thu 10/298:32 pm -
1 stop23h 02m
Deal found 9/28![Frontier logo]()
$206
This CheapOair deal was found by Cheapflights users on 9/24. 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.
Wed 10/288:20 pm -
1 stop5h 37m
Sat 11/76:25 am -
1 stop11h 00m
Deal found 9/24![Frontier logo]()
$188
This CheapOair deal was found by Cheapflights users on 9/24. 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.
Wed 10/288:20 pm -
1 stop5h 37m
Mon 11/28:32 pm -
1 stop23h 02m
Deal found 9/24![Frontier logo]()
$197
This Frontier deal was found by Cheapflights users on 9/23. 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.
Wed 10/288:20 pm -
1 stop5h 37m
Fri 10/306:25 am -
1 stop10h 49m
Deal found 9/23![Frontier logo]()
$204
This Cheapflightsfares deal was found by Cheapflights users on 9/24. 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.
Fri 10/308:11 pm -
1 stop21h 47m
Mon 11/28:32 pm -
1 stop23h 02m
Deal found 9/24![Frontier logo]()
$202
One-way flights from San Antonio to San DiegoSearch for one-way flight options from San Antonio to San Diego. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
Search for one-way flight options from San Antonio to San Diego. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
This Super.com deal was found by Cheapflights users on 9/23. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:21 pm -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$88
This Frontier deal was found by Cheapflights users on 9/23. 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 10/208:21 pm -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 9/24. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:11 pm -
1 stop11h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Frontier logo]()
$94
This Frontier deal was found by Cheapflights users on 9/23. 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.
Sat 11/2110:11 pm -
1 stop11h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 9/24. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:21 pm -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Frontier logo]()
$96
This CheapOair deal was found by Cheapflights users on 9/24. 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.
Wed 12/210:52 pm -
1 stop10h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 9/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:20 pm -
1 stop5h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Frontier logo]()
$103
This Frontier deal was found by Cheapflights users on 9/28. 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.
Wed 10/288:20 pm -
1 stop5h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$104
This Cheapflightsfares deal was found by Cheapflights users on 9/27. 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 12/1410:52 pm -
1 stop10h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Frontier logo]()
$108
Find 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 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $176 (Cheapflightsfares) |
One-way from | $88 (Super.com) |
Popular in | July |
Cheapest in | April |
Average price | $388 |
Good round-trip deal | $376 or less |
Good one-way deal | $169 or less |
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 7,457,451 searches. Data last updated September 28, 2026.
Use the filters below to find and compare flights from San Antonio to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Mon 11/23
6:05 am-7:05 am
Nonstop3h 00m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$129
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Wed 10/21
7:40 am-8:40 am
Nonstop3h 00m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$129
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Sat 10/24
6:50 am-12:44 pm
1 stop7h 54m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$134
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Sat 10/24
5:30 am-11:35 am
2 stops8h 05m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$144
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Thu 11/26
7:01 am-10:25 am
1 stop5h 24m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$156
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Thu 12/24
5:26 am-11:35 am
2 stops8h 09m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Thu 10/29
6:20 am-7:20 am
Nonstop3h 00m
San Diego
Tue 11/3
9:15 am-2:00 pm
Nonstop2h 45m
$257
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Fri 10/23
7:30 pm-8:30 pm
Nonstop3h 00m
San Diego
Tue 10/27
9:05 am-1:45 pm
Nonstop2h 40m
$293
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Fri 10/30
7:30 pm-8:30 pm
Nonstop3h 00m
San Diego
Tue 11/3
12:45 pm-7:20 pm
1 stop4h 35m
$299
San AntonioSan Diego
SAT San Antonio - SAN San Diego
SATSAN
San Antonio
Wed 10/28
11:45 am-8:24 pm
2 stops10h 39m
San Diego
Sat 11/7
1:31 pm-9:47 pm
1 stop6h 16m
$382
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from San Antonio to San Diego
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to San Diego in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
SAT-SAN
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
Prices
More
How far ahead should I book a flight from San Antonio to San Diego?
To ensure you get the cheapest price possible for a flight from San Antonio to San Diego, you should look to book at least 1 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, April is the cheapest month in which you can book a flight from San Antonio to San Diego (average of $379). Flying from San Antonio to San Diego in July is currently the most expensive (average of $466). 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 28, 2026.
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 26% on airfare.
What’s the top layover airport for flights from San Antonio to San Diego?
Share of 1-stop round-trip flights from San Antonio to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 90% of 1-stop itineraries from San Antonio to San Diego on Cheapflights.
What’s the cheapest layover airport for flights from San Antonio to San Diego?
Average round-trip fare for 1-stop flights from San Antonio to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $225.
What’s the fastest layover option from San Antonio to San Diego?
Shortest average travel time for 1-stop one-way flights from San Antonio to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 4h 29m.
Which airport typically offers the quickest layover for flights from San Antonio to San Diego?
Average layover duration for 1-stop one-way flights from San Antonio to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 0h 56m.
The best insider tips for San Antonio to San Diego flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to San Diego trip
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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 28, 2026.
Read through reviews of airlines operating flights from San Antonio to San Diego, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
San Ysidro
Poway
Coronado
La Mesa
Julian
Santee
Lemon Grove
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Top 5 airlines flying from San Antonio to San Diego
Discover the top 5 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 7,457,451 searches. Data last updated September 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$145 | Average$265 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$207 | Average$396 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$222 | Average$389 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$225 | Average$356 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$319 | Average$446 | FlexibilityNo cancel fee | On-time63% |