According to the fine print (and carriers' past actions), nothing on an airline ticket is guaranteed as part of the sales contract; not the plane type, flight n

According to the fine print (and carriers' past actions), nothing on an airline ticket is guaranteed as part of the sales contract; not the plane type, flight numbers, arrival/departure times, baggage handling, connections, and, thanks to overbooking, not even the fact that you have a seat on the plane.