$350 Cheap American Airlines flights Chicago (ORD) to Waterloo (ALO)

Finding cheap one-way American Airlines flights from ORD to ALO from $350 on Expedia couldn't be easier --- just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $337 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 affordable American Airlines flights from O'Hare Intl. Airport (ORD) to Waterloo Regional Airport (ALO) one to three months prior to your 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 type and journey, the ideal day to book a domestic flight is usually 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.

The first flight from ORD to ALO with American Airlines departs at 8:00AM UTC-6. You'll touch down at 9:23AM UTC-6. The final American Airlines flight of the day leaves at 3:10PM UTC-6 and arrives at 4:21PM UTC-6. With approximately 20% fewer cancellations for early and mid-morning flights, setting off early is generally the best choice.**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.