Delta Airlines provides wifi service on some of its selected aircraft. Moreover, on some routes it's completely free, but in some regions travelers have to pay an extra cost to benefit from this service. Moreover, connecting to the Delta wifi is a simple process. First, switch the phone to aeroplane mode and turn on WiFi on your device. Select the “DeltaWiFi.com” network, then open your browser, which redirects you to the Delta WiFi Connect portal. Here, follow the instructions to connect to the WiFi. To avail more details related to the WiFi service, visit the official website of Delta Airlines or read the blog at the mentioned link.