By bus
Across from the train station, you will find a long-distance bus station. Buses arrive regularly from almost anywhere in Henan province. Buses may be less comfortable than the trains, but are cheaper and you do not have to push and shove your way in and out of the train. You are guaranteed a seat but sometimes buses wait to fill up, rather than leaving at a set time, and be aware that long-distance buses may be sleepers rather than seated if the trip is very long.
By train
Zhengzhou is China's biggest train hub; you can get here from nearly every major metropolitian area in China. There are several arrivals each day from Beijing about 11 hours, or 5.5 hours by high-speed rail, Guangzhou about 18 hours, Xi'an about 5 hours, or 2 hours by high-speed rail and Shanghai about 14 hours, or 6 hours by high speed rail. Trains arrive from other places less often. The Hanoi to Beijing train also stops here.