Earn point on your loyalty program!arrow arc left

Cheap flights from Phoenix (PHX) to San Diego (SAN)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Phoenix (PHX) to San Diego (SAN)

How to find the cheapest flight from Phoenix (PHX) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Phoenix (PHX) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Phoenix (PHX) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Phoenix to San Diego in August , September 2026

19 Aug - 09 Sep $ 98.00
PHX
Phoenix
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
PHX
Phoenix
Pick dates
19 Aug - 09 Sep $ 98.00
PHX
Phoenix
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
PHX
Phoenix
Pick dates
21 Aug - 09 Sep $ 100.00
PHX
Phoenix
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
PHX
Phoenix
Pick dates

Last minute flights from Phoenix to San Diego

19 Aug - 31 Aug $ 181.00
PHX
Phoenix
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
PHX
Phoenix
Pick dates
23 Aug - 31 Aug $ 182.00
PHX
Phoenix
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
PHX
Phoenix
Pick dates
23 Aug - 31 Aug $ 252.00
PHX
Phoenix
Alaska Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Alaska Airlines
DIRECT
PHX
Phoenix
Pick dates

One-way flights to San Diego from Phoenix

7:00 PM - 7:00 PM
Frontier Airlines
0 Stops
1h 15m
PHX - SAN
$ 75
Kiwi
Pick dates
10:33 PM - 10:33 PM
Frontier Airlines
0 Stops
1h 11m
PHX - SAN
$ 76
Kiwi
Pick dates
10:33 PM - 10:33 PM
Frontier Airlines
0 Stops
1h 11m
PHX - SAN
$ 76
Kiwi
Pick dates

How to find the cheapest flight from Phoenix (PHX) to San Diego (SAN)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Phoenix (PHX) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Phoenix (PHX) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.