Whanganui has easy highway access no matter which direction you're approaching from. Driving times are influenced by weather, traffic and your pleasure in the surroundings, but as a guide:
Wellington is about 200km to the south. It will likely take less than 3 hours to drive.
Auckland is some 450km to the north and 6 hours driving.
Palmerston North is 80km to the east and about an hour to drive.
by train / bus
Your favourite airline will afford you ways to reach New Zealand.
If you want to fly from Auckland to Whanganui, Air Chathams provides the fastest direct route and only regular service. Air Chathams has been a premium Sponsor to The Colab Conference. We greatly appreciate their support and hope you’ll acknowledge this by flying with them. Check their website for the schedule and bookings**.