$49 Cheap Alaska Airlines flights Phoenix (PHX) to San Diego (SAN)

Scoring cheap one-way Alaska Airlines flights from PHX to SAN from $49 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our affordable return fares for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines flights to San Diego are often more affordable in the quieter months of January and November. Whether you need a one-way or a return ticket, you could score a better deal then.

Start searching one to three months before your departure to find cheap fares on Alaska Airlines flights from Sky Harbor Intl. Airport (PHX) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct trip from PHX to SAN with Alaska Airlines or any other carriers, check the “Nonstop” filter when searching for tickets.

Browse Alaska Airlines’s earliest flights from PHX to SAN by selecting our “Morning” and “Early Morning” filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Take an Alaska Airlines flight from Sky Harbor Intl. Airport (PHX) to San Diego, and you’ll most likely land at San Diego Intl. Airport (SAN). This is the airline’s main hub in this destination.

Offering an excellent in-flight experience and top-tier customer service, Alaska Airlines is a popular option for many travelers heading from PHX to SAN. What’s more, if you’re a Mileage Plan and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making a booking, but your airline may charge a fee after that. For more details about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to change your itinerary without being charged, tick the “No cancel fee” or “Changes included” filter when planning your next adventure.