New York (CNN Business) A new boarding process is coming to Delta Air Lines.

Beginning on January 23, 2019, the airline will ditch zone boarding in favor of a new -- and more complex -- process based on ticket type and color.

Despite the expansion in number of groups from six to eight, Delta said the new format hopes to "encourage fewer customers to line up in the gate area" and ultimately speed up boarding.

The Atlanta-based carrier will still begin boarding with passengers that need extra time, followed by premium passengers sitting in its Delta One suites (applicable on select domestic and all international flights) and then its new Premium Select cabin on some international flights or First Class on domestic flights.

After that, it gets complicated: The airline used to board the Sky Priority zone -- passengers sitting in Comfort+ and Gold and Platinum Medallion members -- together.

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