The cost of a trip to Australia will vary depending on your travel plans and preferences. If you're staying in one place, you can expect to spend less money on transportation and accommodation. However, if you're planning to travel between different cities or regions, the cost of flights and other transportation can add up. Additionally, your accommodation choices will also impact the cost of your trip. If you're looking for budget-friendly options, there are many hostels and camping sites available throughout the country. However, if you're wanting more luxury, you can expect to pay more for higher-end hotels and resorts. The amount you spend on your vacation will depend highly upon how you want to travel and what sorts of things interest you.