$71 Cheap Spirit Airlines flights Chicago (ORD) to Austin (AUS)

Landing cheap one-way Spirit Airlines flights from ORD to AUS from $71 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Alternatively, check out our affordable return fares from $123 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.

Search for one-way or return flights to Austin in January or December. You could find a cheap fare with Spirit Airlines during these off-peak times.

To find cheap Spirit Airlines fares from O’Hare Intl. Airport (ORD) to Austin-Bergstrom Intl. Airport (AUS), start searching one to three months before your planned departure. Reserving 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 impact the cost. 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 flight 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.

To see if there’s a direct journey from ORD to AUS with Spirit Airlines or another carrier, use our “Nonstop” filter when browsing for tickets.

Filter your results by “Morning” and “Early Morning” to find the earliest flights from ORD to AUS. Heading off early means flight 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.

Austin-Bergstrom Intl. Airport (AUS) is the main Austin gateway for Spirit Airlines flights from O’Hare Intl. Airport (ORD).

With a rewarding loyalty program, Spirit Airlines is a top pick for many travelers flying from ORD to AUS. Plus, if you’re a Free Spirit and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of fare you purchased, a fee may apply if you cancel or change your booking more than 24 hours after it’s confirmed. To secure plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when you search for flights. For additional information on modifying or canceling your reservation, visit “Trips,” select your flight and click on “Manage Booking.”