Billings is generally a safe place to travel but like any city, it does have areas that are less secure, especially at night. Always exercise common sense precautions, such as staying in well-lit, populated areas, not exposing valuables, and taking care when meeting new people. Public transport and taxis are reliable and safe to use. As a solo female traveler, keeping your wits about you, as you would in any new location, is always a good idea.