Cheap flights from Chicago to Los Angeles from $129

The month of September is, on average, the cheapest month to fly to Los Angeles from Chicago, with most prices found around $237. If you aren’t able to travel during the month of September, then book flights to Los Angeles from Chicago during August instead. Flights to Los Angeles in August, while not as cheap as those in September, still average around $252.

Our data shows that Thursday is the least expensive day to fly to Los Angeles. Tickets to fly out on this day can be as low as $385. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Los Angeles on Monday is $499.

Our most recent data shows that the best time of day to fly to Los Angeles is in the evening. Flights from Chicago to Los Angeles during this time can be as low as $344. In the afternoon is when there is more demand to fly to Los Angeles, so prices are often more expensive at around $724 per ticket.

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

You are more likely to see cheaper flights to Los Angeles from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Los Angeles for around $318 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Los Angeles from Chicago for as low as $268 on momondo.

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

You could potentially save up to 41% on your flight if you consider stops on a Chicago to Los Angeles flight.

As of July 2026, prices for Chicago to Los Angeles flights are approximately 16% cheaper when compared to flights at the same time last year.

Southwest and Delta are the most popular carriers operating from Chicago to Los Angeles Los Angeles

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Los Angeles from Chicago according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Los Angeles. Keep in mind that there are 7 different airlines that fly to Los Angeles on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between Chicago and Los Angeles have experienced a delay on any given week. The average delay length over the past 12 months has been 165 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 15% of their flights experiencing any sort of delay.

Atlanta (ATL) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $250.

Flights connecting via New York (JFK) have the shortest average one-way travel time: 9h 39m.

New York (JFK) has the shortest average layover time for this route: 1h 05m.

As of July 2026, there are 126 flights per day flying from Chicago to Los Angeles. The most common time of day flights depart is 8:00PM, with 33% of flights taking off at noon.

885 flights are operational weekly from Chicago to Los Angeles as of July 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.