$47 Cheap Spirit Airlines flights Chicago (ORD) to San Diego (SAN)

You can find budget-friendly return Spirit Airlines flights from $120 from ORD to SAN by sorting your results from “Price (lowest to highest)” on Expedia. Or search for deals from $47 for a one-way journey.**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.

Browse for one-way or return flights to San Diego in January or November. You could find cheaper fares with Spirit Airlines during these off-season months.

Search for affordable Spirit Airlines flights from O’Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN) one to three months before your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and itinerary, the ideal day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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 find out if there’s a direct journey from ORD to SAN with Spirit Airlines or any other carriers, check the “Nonstop” filter when searching for flights.

To find the earliest departure from ORD to SAN with Spirit Airlines, filter your search by “Morning” and “Early Morning.” Booking an early flight generally means you’ll experience fewer cancellations.**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.

Spirit Airlines flights from O’Hare Intl. Airport (ORD) to San Diego come in to land at San Diego Intl. Airport (SAN). This is the main gateway to this destination.

A rewarding loyalty program and the ability to collect points through Free Spirit are the start of the reasons to depart from ORD to SAN with Spirit Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* in addition to Spirit Airlines’s loyalty program earnings. It’s yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of making your booking, but your airline may charge you after that. For more details about altering your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your itinerary without extra charges, check the “Changes included” and “No cancel fee” filters when organizing your next escape.