By plane
There are no international scheduled flights. Broome and Kununurra have daily scheduled flights, and Derby has a few direct flights a week. Broome is the most easily accessed town, with flights from Perth, Sydney, Darwin, Melbourne, Brisbane and Alice Springs on the weekend. Kununurra and Derby are a bit more challenging to get to, with flights from Darwin, Broome or Perth only.
By car
A very long drive from either way. On the Eastern side, it is a 900km drive from Darwin to Kununurra via the road 1. On the Western side, you will have to add at least 2100 km to get to Perth.
By Cruise
Cruises to Kimberley normally depart after the wet season. The Kimberley coastline, surrounded with red cliffs and azure blue seas, which is normally inaccessible by car or bus, could now be viewed and explored in safety on a cruise ship. Cruise ships generally depart from Darwin, and will visit placese in the Kimberley region such as King George River and Falls, Vansittart Bay, Hunter River, Montgomery Reef, Talbot Bay, Cape Levequ, The Lacepedes and Broome.
Cruises Available:
Orion Expedition Cruises
(http://www.orionexpeditio...). The 'Orion' is a purpose built vessel designed to access remote regions in luxury. Orion Expedition Cruises operate a number of winter-time cruises to Kimberley.
By bus
There are scheduled buses by Greyhound from Perth to Darwin, stopping at Broome, Derby and Kununurra. Keep in mind that it is an extremely long bus trip Perth to Broome will keep you seated for more than 30 hours, and add another 30 hours to get to Darwin.