Cheap flights from Birmingham, Alabama to Chicago from $135

The month of August is, on average, the cheapest month to fly to Chicago from Birmingham, Alabama, with most prices found around $118. If you’re not able to fly to Chicago in August, then July is your next best option. Flight prices from Birmingham, Alabama to Chicago during July average around $121.

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $424. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Birmingham, Alabama to Chicago for around $664.

Our most recent data shows that the best time of day to fly to Chicago is in the afternoon. Flights from Birmingham, Alabama to Chicago during this time can be as low as $436. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $604.

Fly from Birmingham to Chicago O'Hare Intl for the best Birmingham - Chicago flight prices

You are more likely to see cheaper flights to Chicago from Birmingham, Alabama when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $367 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Birmingham, Alabama for as low as $285 on momondo.

You could potentially save up to 13% on your flight if you consider stops on a Birmingham, Alabama to Chicago flight.

As of May 2026, prices for Birmingham, Alabama to Chicago flights are approximately 85% more expensive when compared to flights at the same time last year.

Southwest, United Airlines, and Delta are the most popular carriers operating from Birmingham to Chicago

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Chicago from Birmingham, Alabama according to our data. American Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 4 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

Detroit (DTW) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Flights via Fort Lauderdale (FLL) offer the lowest average round-trip price of $436.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 4h 04m.

Detroit (DTW) has the shortest average layover time for this route: 0h 32m.

As of May 2026, there are 17 flights per day flying from Birmingham, Alabama to Chicago. The most common time of day flights depart is 6:00AM, with 56% of flights taking off at noon.

The number of flights available between Birmingham, Alabama and Chicago is 121 per week as of May 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.