$138 Cheap American Airlines flights Chattanooga (CHA) to Chicago (ORD)

Scoring cheap one-way American Airlines flights from CHA to ORD from $138 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $189 for your next break.**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.

January is one of the most affordable months to fly to Chicago with American Airlines. You could also find excellent prices on one-way and round-trip fares in February.

To find cheap American Airlines fares from Chattanooga Metropolitan Airport (CHA) to O’Hare Intl. Airport (ORD), start searching one to three months before your planned 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 influence the price you pay. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip 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 figure out if there’s a direct route from CHA to ORD with American Airlines or other airlines, select the “Nonstop” filter when browsing for tickets.

Find American Airlines’s earliest flights from CHA to ORD by using the “Early Morning” and “Morning” filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**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.

American Airlines flights from Chattanooga Metropolitan Airport (CHA) to Chicago touch down at O’Hare Intl. Airport (ORD). This is the main gateway here.

Changes are typically free within 24 hours of making your booking, but your airline may charge a fee after that. For further information about altering your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to change your plans without extra charges, apply the “No cancel fee” or “Changes included” filter when planning your trip.