Cheap Alaska Airlines flights Santa Rosa (STS) to San Diego (SAN)

Set the “Price (lowest to highest)” filter on Expedia to look for cheap Alaska Airlines return flights from STS to SAN. Affordable one-way options are also on offer.**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.

January is one of the cheapest months to get away to San Diego with Alaska Airlines. You could also find excellent prices on one-way and return fares in November.

Begin your search one to three months before your departure to score cheaper fares on Alaska Airlines flights from Sonoma County Airport (STS) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance versus 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.* Time it well, 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.

Take off on one of Alaska Airlines’s 11 direct weekly flights from Sonoma County Airport (STS) to San Diego Intl. Airport (SAN). To see what’s available, enter your origin, destination and dates and hit search. Then apply the “Nonstop” and “Airline” filters.

From takeoff to touchdown, a nonstop Alaska Airlines flight from Sonoma County Airport (STS) to San Diego Intl. Airport (SAN) takes approximately 1h 38m.

Alaska Airlines operates the most flights from Sonoma County Airport (STS) to San Diego Intl. Airport (SAN) on Thursday. With up to 2 daily departures, you’ll get the most options and flexibility on this day.

Setting off from STS at 6:00AM UTC-8, the earliest Alaska Airlines flight to SAN arrives at 7:40AM UTC-8. Flying early means you’re less likely to encounter cancellations or delays.* Don’t like early starts? The last Alaska Airlines flight from STS to SAN departs at 6:40PM UTC-8 and touches down at 8:15PM UTC-8.*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.

San Diego Intl. Airport (SAN) is the main San Diego hub for Alaska Airlines flights from Sonoma County Airport (STS).

Alaska Airlines makes traveling from STS to SAN more comfortable with an excellent in-flight experience and a rewarding loyalty program. You may even earn points with Mileage Plan. Remember to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Jet off on an Alaska Airlines flight from Sonoma County Airport (STS) to San Diego Intl. Airport (SAN), and you’ll likely be seated on an Embraer 175. Keep in mind though, that the aircraft type can change due to operational needs.

In most cases, you can cancel or modify your flight, although additional fees may apply if your booking was made more than 24 hours ago. Need to keep your options open? Make use of Expedia’s “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you have to revise your plans. To update your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for more details.