Hanoi to Ho Chi Minh City: money, crossing the street, transport, regional seasons, curated traveler tips, and mobile data via eSIM.
Secure, effective and private eSIMs across the globe
Vietnam runs 1,600 kilometers from the rice terraces of the north to the Mekong Delta's floating markets, with Hanoi's old-quarter chaos, Ha Long Bay's karsts, lantern-lit Hoi An and the buzz of Ho Chi Minh City strung along the way.
It is intense, cheap and addictive. The food alone justifies the trip - pho at dawn, banh mi from a street cart, bia hoi on a plastic stool - and the famous motorbike traffic quickly turns from terrifying to hypnotic.
The north is cooler, older and full of limestone; the center is lanterns and beaches; the south is hotter, louder and flavored with the Mekong. Flying the long hops and slowing down in between is how Vietnam stops feeling like a bus schedule. Hanoi, Hoi An and Saigon is a classic first line. Sapa, Phong Nha or the Mekong is the chapter people talk about later.
Eat on a stool. Drink the coffee iced and sweet. Learn to cross the street. The country is intense in the best way, and it has a soft spot for travelers who look like they are enjoying themselves.
Essentials
Traveler tips
Real advice from people who have been to Vietnam, curated by our team with links to the original sources.
Waiting for a gap in Hanoi traffic means waiting forever. Step off, walk slowly and steadily without stopping or darting, and the river of motorbikes flows around you. Locals cross this way all day.
Grab's fixed fares tell you what rides actually cost, which arms you for negotiating with any taxi or xe om elsewhere. For metered taxis, stick to Mai Linh and Vinasun brands.
The best Vietnamese food comes from spots that make a single thing - one pho shop, one banh cuon stall - often for decades. A short or nonexistent menu and low stools are the quality signals.
The Reunification Express is slower than a flight and more human than an overnight sleeper bus. Book a soft berth, bring snacks, and watch the country go by. For the long north–south hop, fly and save the train for a scenic segment.
A 500,000 dong bill is a burden at a pho stall. Withdraw from Vietcombank or a big-bank ATM, ask for smaller denominations, and keep a stack of 20s and 50s for street food, tips and the woman with the fruit basket.
TripAdvisor Forums
Hanoi to Saigon is a series of separate tickets, not one open journey. Soft sleepers sell out in school holidays, so book each leg you actually want.
View sourceTripAdvisor Forums
Dong exchanged before you fly is a poor rate. ATMs and gold shops in-country are how travellers get cash; street kitchens and family restaurants will not take a card.
View sourceVietnam travel notes
The Reunification Express is useful as legs — Hue to Da Nang along the coast, or an overnight in a four-berth soft sleeper — not as a 32-hour hard-seat dare. Book on the official railway site or a known English broker; the cheap tourist sleeper bus is the one that dumps you at 4am. Hard seat is for a short daylight hop. The train is the night you sleep; the flight is the day you would have lost to the highway.
View sourceVietnam travel notes
Vietnam wants a motorcycle endorsement plus an International Driving Permit if you rent a bike. Checkpoints on the Ha Giang Loop are common; an accident without the right licence is how travel insurance walks away. GrabBike exists so you can sit on the back in Hanoi traffic without becoming the rider. If a shop keeps your passport as a deposit, walk.
View sourceFAQ
Airport SIM counters in Vietnam are cheap by global standards but still pricier than city shops, and they need your passport for registration. An eSIM skips the queue and paperwork - you land with working data and go straight to the Grab pickup zone.
Walk out slowly and do not freeze or sprint — bikes flow around a predictable line. Waiting for a gap is how you never leave the curb. Unlocked iPhone XS, Pixel 3 or Galaxy S20+ can run Grab on an eSIM so you are not negotiating a xe om in the intersection.
Grab, translation, maps and booking apps put most travelers at 1-2 GB per day, so 15-20 GB fits a two-week trip. Data in Vietnam is inexpensive, so oversizing the plan costs very little.
Towns and the tourist trail are well covered with fast 4G. Expect signal to thin out on Ha Long Bay cruises once you are far from shore and in the valleys around Sapa on treks - download offline maps for those days.
No - Grab works with your home number, as the app verifies by SMS or call to your existing account and then runs entirely on data. That is exactly why a data eSIM covers everything most travelers need in Vietnam.
eSIM plans
Grab bookings, translation apps and train tickets make data the most useful thing in your pocket in Vietnam. An eSIM activates before you land in Hanoi or Ho Chi Minh City and costs less than an airport coffee.
Grab, Google Translate and a pin in an alley with no street number: Vietnam runs on data. An eSIM is cheaper than the airport SIM and means your first xe om is a tap, not a negotiation in arrivals.