The minimum price for a flight from Chattanooga to Chicago is currently around $193.00, though prices can vary depending on the airline and time of year. This will depend on the airline that you are flying, as well as the time of year that you are flying. Generally speaking, between 1 and 3 times a week is typical for this route. The best time to fly from Chattanooga to Chicago depends on personal preference and availability. Generally, the cheapest flights can be found in the early morning, evening, and late evening. The busiest days for travel are typically Fridays and Sundays, so flights are usually pricier then. If your plans are flexible, consider booking midweek flights for the best deals! The frequency of flights from Chattanooga, TN to Chicago, IL vary depending on the season and the airlines. Generally, direct flights between the two cities are available three to nine times per week, depending on the day. It depends on your citizenship and the purpose of your travel. If you are a citizen of the United States, you do not generally need a visa to travel domestically. If you are a citizen of another country, you may need to apply for a visa before traveling to the United States. 1. United Airlines
2. Delta Air Lines
3. American Airlines
4. Frontier Airlines
5. Allegiant Air Delta, Southwest and American Airlines all offer nonstop flights from Chattanooga to Chicago.