Delta Air Lines has uncorked a rebranding of all of its fare types — upending the Basic Economy/Main Cabin/Comfort Plus/etc. order that has dominated the big U.S. airlines for the last decade or so. The new ticket types can be booked now for trips starting in October,

The airline will fold the base fare into its new Delta Main category – previously called Main Cabin – for flights departing Oct. 1 or later, part of a reworked ticket tier structure. Delta Comfort+ will become Delta Comfort and First Class will be called Delta First, the carrier said Thursday.