Cheap flights from Los Angeles to Chicago from $109

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Los Angeles averaging around $340.

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $408. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Los Angeles because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $523.

Flying to Chicago O'Hare Intl Airport from Los Angeles in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $385 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $561. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Los Angeles when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport from Los Angeles for as low as $305 on momondo.

There are 4 cabin classes available to choose from on Los Angeles to Chicago O'Hare Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, Delta, and JetBlue are the most popular carriers operating from Los Angeles to Chicago O'Hare Intl

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Los Angeles according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 7 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between Los Angeles and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 184 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

As of November 2026, there are 105 flights per day flying from Los Angeles to Chicago O'Hare Intl Airport. The most common time of day flights depart is 11:00PM, with 44% of flights taking off at noon.

As of November 2026, 737 flights take off from Los Angeles and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Tue, with 17% of weekly flights taking off on this day.