Alaska Airlines Flights from Phoenix to San Diego

Flexpay logo

Book now. Pay later.

Spread the cost of your flight over low monthly payments.

Learn more

Lowest fares from Phoenix to San Diego

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

One-way low-fare flights Phoenix to San Diego.*

$
keyboard_arrow_down
One-way low-fare flights Phoenix to San Diego.*
From
To
Fare Type
Dates
Price
Phoenix (PHX)San Diego (SAN)One-way
|
Saver		Depart: Sep 29, 2025

From

$49

Seen: 5 minutes ago

Phoenix (PHX)San Diego (SAN)One-way
|
Saver		Depart: Sep 22, 2025

From

$135

Seen: 6 hours ago

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Looking for more? See other routes