Cheap flights from Chicago to Los Angeles from £99

The month of September is, on average, the cheapest month to fly to Los Angeles from Chicago, with most prices found around £152. If you aren’t able to travel to Los Angeles during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of £195.

The cheapest day to depart from Chicago to Los Angeles is on a Thursday. Travellers who choose to depart for Los Angeles on a Thursday will often find tickets for as low as £332. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around £719. These prices are subject to change though, so be sure to set up a Price Alert for flights to Los Angeles.

Our most recent data shows that the best time of day to fly to Los Angeles is in the morning. Flights from Chicago to Los Angeles during this time can be as low as £332. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £1,268 on average. Flights to Los Angeles from Chicago in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Chicago O'Hare Intl to Los Angeles for the best Chicago - 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 £229 when searching weeks before you fly. 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 £187 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 55% on your flight if you consider stops on a Chicago to Los Angeles flight.

As of June 2026, prices for Chicago to Los Angeles flights are approximately 28% more expensive when compared to flights at the same time last year.

Historically, on average around 18% 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 163 minutes.

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

Wednesday is statistically the day of the week that experiences the fewest 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 fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

As of June 2026, there are 119 flights per day flying from Chicago to Los Angeles. The most common time of day flights depart is 18:00, with 34% of flights taking off at midday.

The number of flights available between Chicago and Los Angeles is 838 per week as of June 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.