You can only catch a flight or a ferry to Bali on the same day if you choose the 4D/3N Relaxed Summit Trek. This itinerary is designed with enough time to descend the mountain and arrange transfers, allowing us to reach Bangsal Port or Lombok International Airport by approximately 15:00.
For this reason, your flight should be scheduled no earlier than 17:00.
With the 3D/2N or 2D/1N treks, there simply isn’t enough time to safely descend from the mountain and reach the airport or ferry terminal on the same day.