Is it cheaper to fly or take buses?

Buses are almost always cheaper, especially when you factor in the cost of a night's accommodation you save by traveling overnight.

Should I use a credit card for everything?

No. Many smaller vendors, markets, and rural transport providers only accept cash. Always carry a mix of local currency and a backup stash of USD in pristine condition.

Cómo ahorrar dinero viajando por Sudamérica

Prioritize long-distance overnight buses to save on accommodation and use local markets for groceries rather than eating out every meal. Stick to a 'slow travel' pace, staying in one region for at least two weeks to drastically reduce transport costs.

Use local long-haul buses. Avoid flying between major cities. Platforms like Busbud or local terminals offer overnight 'cama' (sleeper) seats. They cost 40-60% less than a flight and save you one night of hostel fees.
Eat at 'Menú del Día' spots. Look for local eateries advertising 'Menú del Día' for lunch. You will get a soup, main course, and drink for between $3 and $6. This is significantly cheaper than dinner at tourist-focused restaurants.
Book hostels with kitchens. Limit eating out to once a day. Shopping at local 'ferias' (markets) for fresh produce and cooking your own dinner in a hostel kitchen will cut your food budget by roughly 50%.
Withdraw local currency correctly. Use a debit card that reimburses ATM fees (like Charles Schwab) to avoid the $5-$10 fees common at banks in Peru, Argentina, and Chile. Always choose 'Decline Conversion' when the ATM asks to convert the currency for you; let your own bank handle the exchange rate.

Is it cheaper to fly or take buses?: Buses are almost always cheaper, especially when you factor in the cost of a night's accommodation you save by traveling overnight.
Should I use a credit card for everything?: No. Many smaller vendors, markets, and rural transport providers only accept cash. Always carry a mix of local currency and a backup stash of USD in pristine condition.