Kathmandu to Lukla Helicopter Flight, One of the Easiest Ways to Access Trekking to Everest Base Camp. Most treks to the Everest Base Camp start from Lukla, which is considered the gateway to the region. It is great choice for any reason you travel to the Everest region. The flight route passes through the lush green hills, deep gorges, and snow-capped peaks, giving a breathtaking experience to the passengers. The flight is around 45 minutes to an hour long and provides stunning views of the Himalayas, including Mount Everest. It passes through beautiful scenery such as hills, gorges, and snow-capped peaks.