$105+ Cheap flights from Austin to San Diego (AUS - 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SAN
Sep 8 — Sep 151
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Austin 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 Austin Bergstrom to San Diego are usually found in January or November, booked 81 days in advance, depart on a Thursday or Friday and return on a Friday
Cheap flight deals from Austin to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from Austin to San DiegoExplore the most affordable flight options available from Austin to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 2026.
Explore the most affordable flight options available from Austin to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 2026.
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/272:24 pm -
1 stop5h 22m
Sat 9/510:13 am -
1 stop5h 41m
Deal found 8/6![United Airlines logo]()
$225
This Frontier deal was found by Cheapflights users on 8/6. 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 8/204:50 pm -
1 stop5h 14m
Wed 9/306:25 am -
1 stop11h 04m
Deal found 8/6![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 8/318:15 pm -
1 stop5h 36m
Sat 9/55:16 pm -
Nonstop3h 11m
Deal found 8/8![Multiple Airlines logo]()
$227
This Cheapflightsfares deal was found by Cheapflights users on 8/7. 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 8/288:15 pm -
1 stop5h 36m
Sun 8/308:59 pm -
1 stop12h 53m
Deal found 8/7![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Tue 9/18:15 pm -
1 stop5h 36m
Tue 9/86:25 am -
2 stops30h 12m
Deal found 8/6![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Sun 9/68:15 pm -
1 stop5h 36m
Mon 9/147:04 pm -
2 stops22h 25m
Deal found 8/6![Frontier logo]()
$230
This Expedia deal was found by Cheapflights users on 8/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:00 am -
Nonstop3h 17m
Sun 8/308:59 pm -
1 stop12h 53m
Deal found 8/7![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Sun 9/208:24 pm -
1 stop5h 27m
Fri 9/254:54 pm -
2 stops19h 43m
Deal found 8/7![Frontier logo]()
$232
This Delta deal was found by Cheapflights users on 8/7. 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.
Tue 12/17:04 pm -
1 stop5h 53m
Sat 12/51:35 pm -
1 stop6h 06m
Deal found 8/7![Delta logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/118:24 pm -
1 stop5h 27m
Mon 9/147:04 pm -
2 stops22h 25m
Deal found 8/6![Frontier logo]()
$234
This Frontier deal was found by Cheapflights users on 8/5. 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.
Fri 10/912:17 pm -
1 stop8h 01m
Thu 10/156:25 am -
1 stop12h 07m
Deal found 8/5![Frontier logo]()
$235
This Priceline deal was found by Cheapflights users on 8/7. 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.
Wed 8/268:15 pm -
1 stop5h 36m
Sat 8/292:08 pm -
Nonstop3h 11m
Deal found 8/7![Multiple Airlines logo]()
$236
Best flights from Austin to San DiegoDiscover carefully curated flight deals from Austin to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.
Discover carefully curated flight deals from Austin to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/5. 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.
Wed 9/26:00 am -
Nonstop3h 17m
Wed 9/25:16 pm -
Nonstop3h 11m
Deal found 8/5![Alaska Airlines logo]()
$258
This Southwest deal was found by Cheapflights users on 8/4. 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.
Sun 10/410:55 am -
Nonstop3h 05m
Tue 10/69:35 am -
Nonstop2h 50m
Deal found 8/4![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 8/8. 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 9/51:34 pm -
1 stop8h 01m
Tue 9/810:30 pm -
1 stop8h 50m
Deal found 8/8![Delta logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 9/117:59 pm -
Nonstop3h 20m
Mon 9/142:17 pm -
1 stop7h 42m
Deal found 8/4![Alaska Airlines logo]()
$260
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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.
Sun 8/306:00 am -
Nonstop3h 17m
Wed 9/98:01 am -
Nonstop3h 14m
Deal found 8/8![Alaska Airlines logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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.
Fri 10/27:59 pm -
Nonstop3h 20m
Mon 10/511:10 am -
1 stop10h 04m
Deal found 8/8![Alaska Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 8/5. 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 8/219:00 am -
Nonstop2h 55m
Tue 8/2511:05 am -
1 stop6h 10m
Deal found 8/5![Southwest logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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.
Fri 9/117:59 pm -
Nonstop3h 20m
Sun 9/138:01 am -
Nonstop3h 14m
Deal found 8/6![Alaska Airlines logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 10/277:59 pm -
Nonstop3h 19m
Sun 11/17:59 am -
Nonstop3h 09m
Deal found 8/7![Alaska Airlines logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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.
Wed 9/91:55 pm -
Nonstop3h 12m
Sun 9/138:01 am -
Nonstop3h 14m
Deal found 8/8![Alaska Airlines logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 8/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:02 am -
Nonstop3h 15m
Sun 9/138:01 am -
Nonstop3h 14m
Deal found 8/9![Alaska Airlines logo]()
$372
Last-minute flights from Austin to San DiegoDiscover last-minute flight deals from Austin to San Diego. Data last updated August 9, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to San Diego. Data last updated August 9, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/6. 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 8/204:50 pm -
1 stop5h 14m
Wed 9/306:25 am -
1 stop11h 04m
Deal found 8/6![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Tue 8/258:15 pm -
1 stop5h 36m
Tue 9/86:25 am -
2 stops30h 12m
Deal found 8/4![Frontier logo]()
$235
This Priceline deal was found by Cheapflights users on 8/7. 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.
Wed 8/268:15 pm -
1 stop5h 36m
Sat 8/292:08 pm -
Nonstop3h 11m
Deal found 8/7![Multiple Airlines logo]()
$236
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/272:24 pm -
1 stop5h 22m
Sat 9/510:13 am -
1 stop5h 41m
Deal found 8/6![United Airlines logo]()
$225
This Cheapflightsfares deal was found by Cheapflights users on 8/7. 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 8/288:15 pm -
1 stop5h 36m
Sun 8/308:59 pm -
1 stop12h 53m
Deal found 8/7![Frontier logo]()
$228
This Expedia deal was found by Cheapflights users on 8/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:00 am -
Nonstop3h 17m
Sun 8/308:59 pm -
1 stop12h 53m
Deal found 8/7![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 8/318:15 pm -
1 stop5h 36m
Sat 9/55:16 pm -
Nonstop3h 11m
Deal found 8/8![Multiple Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Tue 9/18:15 pm -
1 stop5h 36m
Tue 9/86:25 am -
2 stops30h 12m
Deal found 8/6![Frontier logo]()
$229
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/38:06 am -
1 stop5h 29m
Thu 9/1010:11 am -
1 stop5h 44m
Deal found 8/6![United Airlines logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Sun 9/68:15 pm -
1 stop5h 36m
Mon 9/147:04 pm -
2 stops22h 25m
Deal found 8/6![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/118:24 pm -
1 stop5h 27m
Mon 9/147:04 pm -
2 stops22h 25m
Deal found 8/6![Frontier logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Sun 9/208:24 pm -
1 stop5h 27m
Fri 9/254:54 pm -
2 stops19h 43m
Deal found 8/7![Frontier logo]()
$232
One-way flights from Austin to San DiegoSearch for one-way flight options from Austin to San Diego. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
Search for one-way flight options from Austin to San Diego. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
This Frontier deal was found by Cheapflights users on 8/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:17 pm -
1 stop8h 01m
Deal found 8/9![Frontier logo]()
$105
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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.
Mon 9/76:00 am -
Nonstop3h 17m
Deal found 8/7![Alaska Airlines logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:15 am -
1 stop19h 44m
Deal found 8/9![Frontier logo]()
$108
This Delta deal was found by Cheapflights users on 8/7. 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 9/56:55 pm -
1 stop6h 32m
Deal found 8/7![Delta logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 10/78:24 pm -
1 stop5h 27m
Deal found 8/6![Frontier logo]()
$110
This Cheapflightsfares deal was found by Cheapflights users on 8/5. 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 10/2312:31 pm -
1 stop10h 17m
Deal found 8/5![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/1011:04 pm -
1 stop23h 13m
Deal found 8/8![Frontier logo]()
$116
This Super.com deal was found by Cheapflights users on 8/8. 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 8/298:15 pm -
1 stop5h 36m
Deal found 8/8![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 8/266:15 am -
2 stops16h 00m
Deal found 8/5![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Tue 9/18:15 pm -
2 stops26h 00m
Deal found 8/5![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Sat 9/58:15 pm -
2 stops29h 29m
Deal found 8/5![Frontier logo]()
$122
Find flight deals from Austin to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) 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 August 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $225 (United Airlines) |
One-way from | $105 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $308 |
Good round-trip deal | $299 or less |
Good one-way deal | $159 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin 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 August 9, 2026.
Use the filters below to find and compare flights from Austin to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Wed 9/2
6:00 am-7:17 am
Nonstop3h 17m
San Diego
Wed 9/2
5:16 pm-10:27 pm
Nonstop3h 11m
$258
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Fri 9/11
7:59 pm-9:19 pm
Nonstop3h 20m
San Diego
Mon 9/14
2:17 pm-11:59 pm
1 stop7h 42m
$260
Quickest round-trip
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Sun 10/4
10:55 am-12:00 pm
Nonstop3h 05m
San Diego
Tue 10/6
9:35 am-2:25 pm
Nonstop2h 50m
$295
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Sun 8/30
6:00 am-7:17 am
Nonstop3h 17m
San Diego
Wed 9/9
8:01 am-1:15 pm
Nonstop3h 14m
$297
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Fri 10/2
7:59 pm-9:19 pm
Nonstop3h 20m
San Diego
Mon 10/5
11:10 am-11:14 pm
1 stop10h 04m
$297
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Fri 9/11
7:59 pm-9:19 pm
Nonstop3h 20m
San Diego
Sun 9/13
8:01 am-1:15 pm
Nonstop3h 14m
$312
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Sat 9/5
1:34 pm-7:35 pm
1 stop8h 01m
San Diego
Tue 9/8
10:30 pm-9:20 am
1 stop8h 50m
$318
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Tue 10/27
7:59 pm-9:18 pm
Nonstop3h 19m
San Diego
Sun 11/1
7:59 am-1:08 pm
Nonstop3h 09m
$352
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Wed 9/9
1:55 pm-3:07 pm
Nonstop3h 12m
San Diego
Sun 9/13
8:01 am-1:15 pm
Nonstop3h 14m
$352
AustinSan Diego
AUS Austin Bergstrom - SAN San Diego
AUSSAN
Austin Bergstrom
Fri 8/21
9:00 am-9:55 am
Nonstop2h 55m
San Diego
Tue 8/25
11:05 am-7:15 pm
1 stop6h 10m
$367
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Austin 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 Austin to San Diego in August.
| 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 Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Austin-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Austin-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 Austin-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 Austin to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Austin with our price prediction graph.
AUS-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 Austin to San Diego
Prices
Airlines
More
How far ahead should I book a flight from Austin to San Diego?
The best time to book flights from Austin to San Diego is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Austin to San Diego?
Currently, January is the cheapest month in which you can book a flight from Austin to San Diego (average of $198). Flying from Austin to San Diego in June is currently the most expensive (average of $400). 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 AUS to SAN?
Find hourly flight availability from Austin 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 August 9, 2026.
It’s optimal to fly from Austin to San Diego in the afternoon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.
What is the cheapest day to fly from Austin to San Diego?
Use this chart to determine the cheapest time to fly round-trip from Austin to San Diego. Price data was last updated on August 1, 2026.
Travelers seeking maximum savings on their Austin to San Diego flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
What’s the top layover airport for flights from Austin to San Diego?
Share of 1-stop round-trip flights from Austin 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 80% of 1-stop itineraries from Austin to San Diego on Cheapflights.
What’s the cheapest layover airport for flights from Austin to San Diego?
Average round-trip fare for 1-stop flights from Austin to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $246.
What’s the fastest layover option from Austin to San Diego?
Shortest average travel time for 1-stop one-way flights from Austin to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Dallas (DFW) have the shortest average one-way travel time for 1-stop routes: 5h 15m.
Which airport typically offers the quickest layover for flights from Austin to San Diego?
Average layover duration for 1-stop one-way flights from Austin to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Dallas (DFW) offer the fastest connection on this route, with an average layover time of 1h 03m.
The best insider tips for Austin 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 Austin to San Diego trip
Our travel experts
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 August 9, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andUnited Airlines from Austin to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Austin 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
Poway
La Mesa
Coronado
Santee
San Ysidro
Julian
Lemon Grove
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Austin
Popular flights
San Diego flight routes
Alternative routes for Austin to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Diego by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Austin to San Diego by cabin class
Find flights from Austin to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Austin and San Diego flights
Browse other Austin and San Diego flight options. Last updated on August 9, 2026.
Other flights from Austin
Browse through other flights departing from Austin. Flights are based on user searches made on Cheapflights and were last updated on August 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 9, 2026.
Top 8 airlines flying from Austin to San Diego
Discover the top 8 airlines that operate flights from Austin 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 August 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$65 | Average$185 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$267 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$108 | Average$271 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$162 | Average$286 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$176 | Average$342 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$187 | Average$342 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$197 | Average$266 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$231 | Average$429 | FlexibilityNo cancel fee | On-time71% |