The cost of traveling to Macao can vary depending on a number of factors, such as the time of year you plan to visit, your mode of transportation, and your accommodation and activities.

• Airfare: The cost of a round-trip flight from major cities in Asia and North America to Macao can range from around $300 to $1000, depending on the departure location and time of booking.
• Accommodation: The cost of accommodation in Macao can range from budget-friendly options like hostels and guesthouses, which can cost as little as $20 per night, to luxury hotels, which can cost over $300 per night.
• Transportation: The cost of transportation in Macao can vary depending on how you plan to get around. Public transportation options such as buses and ferries are relatively inexpensive, with fares ranging from $0.5 to $3. Taxis are also readily available, but tend to be more expensive, with fares starting at around $3.50, and going up to $5 for a short ride.
• Food and drinks: The cost of food and drinks in Macao can vary depending on where you choose to eat and drink. Street food and local restaurants are generally more affordable, with meals costing around $5 to $10. Fine dining restaurants can be more expensive, with prices ranging from $20 to $50 or more for a meal.
• Activities: The cost of activities in Macao can vary depending on what you plan to do. Some popular tourist attractions, such as the historic center of Macau and the Macau Tower, have free admission, while others, such as casinos and theme parks, can be quite expensive, with prices ranging from $20 to $50 or more.

All in all, it's possible to visit Macao on a budget, but it also depends on your taste and lifestyle. A budget of $50-100 per day should cover accommodation, food, transportation, and some activities for budget travellers.

Here is a sample budget for a 3-day visit to Macao:

• Airfare: $500 (round-trip from a major city in Asia or North America)
• Accommodation: $90 ($30 per night for a budget hotel or guesthouse)
• Transportation: $20 ($5 per day for buses and ferries)
• Food and drinks: $60 ($20 per day for meals and drinks)
• Activities: $50 ($20 for entrance fees and $30 for other activities)

Total: $730

Please note that this is just a rough estimate, and your actual expenses may vary depending on your specific travel plans and preferences. It's a good idea to budget a bit more for unexpected expenses or emergencies.

Also, it's possible to save money by staying in a budget friendly hostel, cooking some of your own meals or opting for street food, and looking for free activities such as visiting the historic center of Macau or the Macau Museum.

Keep in mind that Macau is known for its high-end shopping, dining and entertainment and also for its casinos, so if you plan to indulge in those activities, your budget may vary accordingly.