$71 Cheap Spirit Airlines flights Portland (PDX) to Chicago (ORD)

Landing cheap one-way Spirit Airlines flights from PDX to ORD from $71 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $156 for your next exciting adventure.**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.

Spirit Airlines flights to Chicago are often cheaper in the low-season months of January and February. Whether you’re searching for a return or one-way ticket, you could find a better deal then.

Look for affordable Spirit Airlines flights from Portland Intl. Airport (PDX) to O’Hare Intl. Airport (ORD) one to three months before your day of departure. 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. Regardless of fare class and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive day is typically 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.

Enter your dates, click search and select the “Nonstop” filter on Expedia to find any direct flights from PDX to ORD with Spirit Airlines or other carriers.

To find the earliest departures from PDX to ORD with Spirit Airlines, filter your results by “Morning” and “Early Morning.” Booking an early flight usually means you’re less likely to experience 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 Portland Intl. Airport (PDX) to Chicago come in to land at O’Hare Intl. Airport (ORD). This is the main gateway to this city.

With a rewarding loyalty program, Spirit Airlines is a top pick for many passengers heading from PDX to ORD. 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.

It’s usually possible to cancel or reschedule your flight, although there may be a charge if you made your booking more than 24 hours ago. Prefer to keep your options open? Make use of our “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to revise your plans. To make modifications, go to “Trips,” select your flight and click on “Manage Booking” for more information.