Simply enter your origin and destination, date and time of travel, plan by departure or arrival time, then hit "Get Directions". You'll be redirected to the Google Maps page with the result. By default, Google provides an option with the least walking based on your departure or arrival time, but the option may not be the quickest route.
If you would like to see more options, click on the "Back" arrow on the left side of the screen within the Google Maps page. Click on "Options" adjacent to the date and time of travel. Select best route or fewer transfers option, and then scroll down for more alternatives.
Select and click on the preferred trip plan for additional details about that trip.