Find Frontier Airlines(F9) flights from Chicago to Los Angeles

At the moment, you can catch a nonstop flight from Chicago to Los Angeles with the following airlines, including: American Airlines Frontier Airlines United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

It takes about 4 hours 31 minutes to fly from Chicago to Los Angeles.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Los Angeles is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on Trip.com data in the past 4 weeks, there is 53 flight per week flying from Chicago to Los Angeles. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/F/S -- UA1498 (09:24)

The cheapest months to fly from Chicago to Los Angeles is November, when demand for travel is lower.

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Chicago to Los Angeles on December 15, 2025 with Frontier Airlines, with prices starting at €23.

You can land at any one of the following hubs in Los Angeles, with O'Hare International Airport to Los Angeles International Airport (ORD-LAX) is by far the most common option on this route: Los Angeles International Airport (LAX) Ontario International Airport (ONT) Van Nuys Airport (VNY).

The time difference between Los Angeles and Chicago is 2h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.