The GH is more easily accessible via the monorail. The closest station is Raja Chulan. The monorail is quite useful as it goes through one the busiest parts of town, however, it can be extremely crowded during peak hours. The terminal is near KL Sentral, a few mins walk via a shopping mall.

From KL Sentral, the quickest way to the airport (KUL) is via the train. This takes just less than half an hour. However, the direct bus service is a lot more economical, taking roughly double the time. For those who prefer the bus, make sure it's going to the terminal you want to go to - KLIA (mostly full service airlines) or KLIA2 (mostly LCCs).