$66 Cheap American Airlines flights Las Vegas (LAS) to Chicago (ORD)

Use the "Price (lowest to highest)" filter on Expedia to look for cheap American Airlines round-trip flights from $126 from LAS to ORD. Affordable one-way tickets from $66 are also available.**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.

To find cheap American Airlines fares from Harry Reid Intl. Airport (LAS) to O'Hare Intl. Airport (ORD), start searching one to three months before your intended 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 impact the overall cost. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking 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.

Jetting off from LAS at 7:00AM UTC-8, the earliest American Airlines flight to ORD arrives at 12:37PM UTC-6. Flying earlier in the day means you're less likely to encounter cancellations or delays.* After something later? The last American Airlines flight from LAS to ORD departs at 11:52PM UTC-8 and touches down at 5:28AM UTC-6.*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.