Flights from Austin to San Diego

Our cheapest offers for flights from Austin to San Diego

Here you can compare cheap flights from Austin (AUS) to San Diego (SAN) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Diego. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Austin
San Diego
Outbound
11/09/25
direct
F91877
03h 06min
Return
12/07/25
direct
F91878
02h 54min
Frontier Airlines
$70
Austin
San Diego
Please note: transfer for connecting flight
Outbound
11/09/25
1 Stopover (DEN)
F91815, F92817
07h 17min
Return
12/07/25
direct
F91878
02h 54min
Frontier Airlines
$121
Austin
San Diego
Outbound
11/09/25
direct
F91877
03h 06min
Return
12/07/25
direct
F91878
02h 54min
Frontier Airlines
$131
Austin
San Diego
Outbound
11/09/25
1 Stopover (LAS)
F93645, F91469
19h 33min
Return
12/07/25
direct
F91878
02h 54min
Frontier Airlines ?
$157
Austin
San Diego
Outbound
10/25/25
1 Stopover (PHX)
AA2715, AA3270
06h 30min
Return
11/15/25
1 Stopover (DFW)
AA3227, AA2610
06h 26min
American Airlines ?
$185
Austin
San Diego
Outbound
11/09/25
1 Stopover (SEA)
AS0595, AS0621
09h 47min
Return
12/07/25
direct
F91878
02h 54min
Alaska Airlines ?
$186
Austin
San Diego
Outbound
10/25/25
1 Stopover (LAS)
F94683, F91465
08h 51min
Return
11/15/25
1 Stopover (DEN)
F94990, F91816
13h 32min
Frontier Airlines ?
$205
Austin
San Diego
Outbound
10/25/25
direct
HA4767
03h 16min
Return
11/15/25
direct
HA6493
03h 03min
Hawaiian Airlines
$213
Offers unavailable
Austin
San Diego
Outbound
10/25/25
1 Stopover (LAS)
F94683, F91465
08h 51min
Return
11/15/25
direct
AS3300
03h 08min
Frontier Airlines
$230
Austin
San Diego
Outbound
02/13/26
1 Stopover (LAX)
DL1584, DL3746
05h 20min
Return
02/26/26
1 Stopover (LAX)
DL4018, DL0986
06h 37min
Delta Air Lines ?
$271
Prices based on recent searches, subject to last-minute changes
Page 1 / 3

Tips and tricks to help you find cheap flights from Austin to San Diego

Favorite airline: Alaska Airlines
73 % of flights booked on the route from Austin to San Diego are booked with Alaska Airlines, Frontier Airlines and Spirit Airlines.
Alaska Airlines
32 %
Frontier Airlines
23 %
Spirit Airlines
18 %
Stopover flights are the cheapest connection
Compared to direct flights, flights with a stopover on this route are on average 44 % cheaper.
non stop flight
1 stop
03h 14min
13h 36min
301 $
209 $
Favourite connection: via Denver
On this route, flights with a stopover in Denver are the most popular.
Route
bookings
1 stopover Denver International Airport, CO
13h 36min, from 209 $
62 %
1 stopover Las Vegas - McCarran International Airport, NV
10h 59min, from 226 $
31 %
1 stopover Dallas-Fort Worth International Airport, T
05h 18min, from 238 $
8 %

Important flight information

Flight information: Austin - San Diego

Roundtrip from 69,97 $
Flight duration min. 03:05 / max. 05:55
Return flight duration min. 02:40/ max. 06:50
Distance 1872 km
Flights per week 43
Departure airport Airport Austin-Bergstrom International Airport, TX (AUS)
Arrival airport Airport San Diego - Lindberg Field International, CA (SAN)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to San Diego
Flight destinations with a similar price
Flight destinations with a similar price