Nearly five million people visit Grand Canyon National Park each year for activities such as backpacking, mule riding, rafting, scenic view driving, biking and many more. If you want to visit it, Las Vegas and Phoenix are the closest airport cities to the North and South Rims.
Once you get there, you can try Grand Canyon Airplane tours with Scenic Airlines or Canyon River Exploring with Grand Canyon Airlines.
Check here a list of guided tours available at Grand Canyon National Park.