How long is a flight from California to Chicago?

The flight time from California to Chicago depends on the departure and arrival airports. For example, a direct flight from Los Angeles International Airport (LAX) to Chicago O'Hare International Airport (ORD) takes about 4 hours and 30 minutes. However, a flight from San Francisco International Airport (SFO) to Chicago Midway International Airport (MDW) with a stopover in Denver International Airport (DEN) can take up to 7 hours and 30 minutes.