By plane: Many travelers arrive by plane at Ngurah Rai International Airport, also known as Denpasar International Airport via Singapore,Hong Kong and Bangkok. The airport is only 30 minutes from Denpasar.
Visa: If you have not already applied for a visa at the embassy before leaving Indonesia, it is possible to obtain a visa on arrival at the airport. It will cost $24 for a month.
Attention to the immigration of people dressed as porters “official” (with badge) will want to take your bag, firmly refuse them. If they do it anyway even though you said no, do not give them money. Especially if you need them to carry the bag on 10-20 meters, you have to pay 5000 Rupiah.
This is not the only scam that you might experience in the airport, especially if you want to bring back memories may that we want to tax you for the goods.
From the airport you can take a taxi to Kuta or other places (Blue Bird Taxis is my choice to exit from the airport).