$81 Cheap Alaska Airlines flights Chicago (ORD) to San Diego (SAN)

Landing cheap one-way Alaska Airlines flights from ORD to SAN from $81 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Or check out our budget-friendly return fares from $156 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 cheaper in the low-season months of January and November. Whether you’re searching for a round-trip or one-way ticket, you could land a better deal then.

To find cheap Alaska Airlines fares from O’Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the overall price. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**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.

Use our “Nonstop” filter when browsing for direct Alaska Airlines flights from ORD to SAN. You can also compare other carriers servicing the same nonstop trip.

To find the earliest departure from ORD to SAN with Alaska Airlines, filter your results by “Morning” and “Early Morning.” Choosing an early flight generally means cancellations are less likely.**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.

Jump on an Alaska Airlines flight from O’Hare Intl. Airport (ORD) to San Diego, and you’ll probably land at San Diego Intl. Airport (SAN). This is the airline’s primary hub in this city.

Jetting off from ORD to SAN with Alaska Airlines means enjoying plenty of perks, such as top-tier customer service and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That’s in addition to the Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

In most cases, you can cancel or modify your flight, although there may be additional fees if you made your booking more than 24 hours ago. Want to keep your options open? Make use of our “Changes included” and “No cancel fee” filters to find flights that won’t charge you extra if you need to adjust your plans. To make changes, head to “Trips,” select your flight and click on “Manage Booking” for more details.