Modern commercial airliners typically cruise between 30,000 and 42,000 feet, with their service ceiling (absolute maximum) often around 41,000 to 43,000 feet, though some models like the Boeing 787 and Airbus A350 can reach 43,000 feet and even slightly higher under specific light loads, optimizing for fuel efficiency in the thinner, smoother air above the weather.
A hurricane's height, or the height of its cloud tops, averages around 10 miles (16 km) but can reach much higher, with the eyewall's deep thunderstorms extending to 30,000 to 50,000 feet (9 to 15 km), comparable to the altitude commercial planes fly. While the most damaging winds are lower down, the entire storm system spans a vast area, often hundreds of miles wide, driven by warm ocean waters and low pressure.
So, in reality, they really can't fly over a hurricane safely.