Find United Airlines(UA) flights from Los Angeles to Chicago

At the moment, you can catch a nonstop flight from Los Angeles to Chicago with the following airlines, including: American Airlines Frontier Airlines United Airlines Delta Air Lines 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 18 minutes to fly from Los Angeles to Chicago.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Los Angeles to Chicago 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 162 flight per week flying from Los Angeles to Chicago. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/W/T/F/S -- AA1598 (08:15) United Airlines: S/M/T/W/T/F/S -- UA1946 (08:21)

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

After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Los Angeles to Chicago on September 22, 2026 with Frontier Airlines, with prices starting at US$78.

You can land at any one of the following hubs in Chicago: Chicago Midway International Airport (MDW), O'Hare International Airport (ORD), and Chicago Rockford International Airport (RFD). Flying from Los Angeles International Airport to O'Hare International Airport (LAX-ORD) is by far the most common option on this route.

The time difference between Chicago and Los Angeles 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.