Yes, it is possible to modify the date on your Alaska Airlines ticket via the internet. After logging in, visit the Alaska website and select "Manage Travel" or "My Trips." Locate your itinerary, enter your booking details, and choose the option to modify the flight date. To select a new date and finish the process, follow the instructions. Get in touch with their customer care team 1-877-777-6490 (OTA) if you run across any problems.