The odds of hitting a jackpot on a slot machine can vary significantly based on several factors, including the type of machine, its specific payout structure, and the game developer's design. Generally, traditional slot machines offer lower odds of hitting the jackpot, which can range from 1 in several thousand to several million, depending on the machine's configuration and jackpot size. Modern video slots often have higher odds due to their random number generator systems, but the actual probability can still be quite low, especially for progressive jackpots that accumulate over time.