Visit the website of Delta Airlines and click on the "Flight Status" link. From there, enter either the flight number or the arrival and departure airports and click "Check Status." This will show you the estimated arrival time of the aircraft. You'll also see the scheduled and actual time of take-off. From this page of the website, you can click the "Notify Me" link. Enter the flight number to get text message or email notifications of any important updates regarding the flight.
Call 800-325-1999. This phone number is Delta Airline's dedicated line for providing real-time flight status information.
Visit websites such as Flight Aware, Flight Stats and Flyte Comm. Websites such as these allow site visitors who enter the airline name and flight number to view real-time data of where the flight is anywhere in the world. You can watch as the plane moves across a map, so you'll know exactly where your loved one is.
Install a flight-tracking application on your Smartphone. Check the application store for your brand of Smartphone to see which ones are available for your model. A small fee may be required, but the applications let you view the flight on a map, along with information such as arrival times, in the same way flight-tracking websites work.