October through April offers clearer skies and better road conditions for multi-day expeditions, though nights are still freezing at this altitude. The dry season (May-September) brings more stable weather but colder temperatures. Check before you go, as altitude sickness affects people differently regardless of season.

Most people book 2-4 weeks in advance, though the private tours available here can often accommodate shorter notice. If you're traveling during shoulder seasons, a week or two is usually fine - but don't wait until you arrive.

Yes. The terrain is remote, altitude is serious (over 3,600 meters on the salt flats), and self-driving requires high-clearance 4x4 vehicles and route knowledge. Every tour listed here is private or small-group, which is standard - you're not paying extra for that, it's just how people get around safely.

Check before you go, as packages vary - but generally expect vehicle transport, accommodation, meals, and a guide fluent in your language. Some include camping, others use lodges or glamping setups. Specifics around whether park fees and equipment are covered should be confirmed with your operator.

The altitude and rough roads make this challenging for very young children and those with mobility issues. If you're considering a trip with these constraints, talk directly with operators about modified itineraries - some private programs may be adaptable, but check before you go.

Absolutely - you're starting at 2,400m and climbing to over 4,000m on the salt flats. Most people spend at least a day acclimatizing in San Pedro first. Bring medication if you're prone to it, stay hydrated, and go slow.

Calama airport is the closest hub (about 100km away), with a 2-hour drive to San Pedro by car or shuttle. Most tour operators can arrange this transfer as part of your package, or you can hire it separately - check before you go for current logistics.