Is it cheaper to fly or take the bus?

Buses are significantly cheaper, but consider the time cost. A 15-hour bus ride vs. a 1-hour flight is the trade-off. If you are on a strict budget, take the train or bus.

Do I need to carry cash?

Yes. While cities are becoming more digital, street vendors and small hostels operate almost exclusively in cash.

Vietnam mit kleinem Budget bereisen

Travel Vietnam on a budget of $35-45 per day by utilizing overnight buses, eating at street stalls, and staying in highly-rated hostels. Stick to the north-to-south (or vice-versa) train and bus route to minimize transit costs and avoid unnecessary flight expenses.

Buy a local SIM card immediately. Don't pay for international roaming. Walk into any Viettel store at the airport or in town. Pay $10 for a month of unlimited data, which you will need for Grab (ride-hailing) and Google Maps.
Use the 'Grab' app for all transport. Download Grab before you arrive. Use the 'Bike' option for solo travel—it is 50-70% cheaper than a car taxi and much faster in heavy traffic. Always confirm the price in the app.
Choose sleeper buses for long distances. Use 12Go.asia to book sleeper buses between major cities like Hanoi, Hue, and Hoi An. They double as accommodation, saving you one night's hotel cost.
Eat exclusively street food. Look for stools on the sidewalk where locals are sitting. If the place is crowded and has a high turnover of people, it is safe and fresh. Expect to pay $1.50–$2.50 per meal.

Is it cheaper to fly or take the bus?: Buses are significantly cheaper, but consider the time cost. A 15-hour bus ride vs. a 1-hour flight is the trade-off. If you are on a strict budget, take the train or bus.
Do I need to carry cash?: Yes. While cities are becoming more digital, street vendors and small hostels operate almost exclusively in cash.