The dry season from May through September offers the clearest skies for stargazing and most stable conditions for multi-day salt flat tours. December through February brings occasional rain that can complicate access to remote areas. Shoulder months work fine if you're flexible about weather.

The 3-day and 4-day private expeditions book consistently across your catalog, so booking 2-3 weeks ahead is safer during high season. If you're flexible on dates, you'll have more operator choices and better pricing.

The catalog here is almost entirely private programs - you get your own driver, vehicle, and pace across the salt flats, which matters when you're spending nights in remote areas. You'll move faster, pick your own stops, and avoid waiting for group stragglers. If budget is tight, check whether any operators offer smaller shared groups as an alternative.

Most 3-4 day expeditions include transportation, accommodation (often basic camps or lodges), and meals, but check before you go to confirm whether activities like lagoon visits are included or cost extra. Altitude sickness medication and guides are typically part of the package.

The town is small and walkable - you can reach most restaurants and shops on foot. For day trips to nearby attractions or the longer Uyuni crossings, you'll need a tour operator to arrange transport. Taxis exist but aren't the main way visitors get around.

The altitude (2,400 meters) affects some people, so arrive a day early to acclimatize. Multi-day salt flat tours involve rough roads and camping in remote areas, which is tough for young children or those with limited mobility - local day trips are a better fit. Check with operators on whether they can modify itineraries for accessibility needs.

You can arrange things in-town, but the popular 3-4 day Uyuni crossings book out during peak months, so booking ahead through a comparison site like SimilarTours gives you better availability and often better rates. Last-minute bookings are riskier and may limit your options to the operators with remaining spots.