The S-curve routed by season and rail — day by day with cost estimates.
For: For travelers who want the full country's food and landscapes in one week or two.
Updated 2026-09-22 · 5 min read
Vietnam runs a thousand miles down a curve of coastline, and every region has its own season and its own food. An AI Vietnam planner routes the S-curve honestly — Hanoi's Old Quarter, Ha Long's karsts, Hoi An's lanterns and Saigon's engines — scheduled around the weather windows.
Feed it your dates and the planner sequences the cities by season: the north in autumn, the center in spring, the south in winter — with per-day figures in dollars at $50/day.
Destination, dates, travel style, interests and budget — one form, one click, one day-by-day plan you can keep refining.
Plan your Hanoi trip with AI →The planner routes north-to-south or south-to-north by your dates: Hanoi and Ha Long in October–December, Hoi An and Da Nang in February–April, Saigon and the Mekong in December–April. The internal flights (1h20) are scheduled as the hinges between acts.
Add the cooking-class interest for the Hoi An school, or the history interest for the Cu Chi and War Remnants days. The planner weights the itinerary toward your selections.
Foodie produces the eating-first shape; cultural adds the war-history weight; adventure adds Ninh Binh's cycling and the caves. The S-curve structure holds in all three.
About $50/day at the mid tier — street meals $1–3, the Ha Long cruise $50–80, and the internal flights $30–60.
Eight does Saigon to Hanoi properly; ten adds the Mekong Delta and Ninh Binh.
The overnight cruise is the better trip; the day cruise is the honest short version. Both are good.
February–April splits the north and south seasons best.
The best value in Asia — about $50/day at the mid tier.
Start from a Hanoi plan or any destination you have in mind — the itinerary adapts to your inputs.
Open the planner →The Vietnam guide: the S-curve route, the street-food curriculum and the season split.
9 min read
Three days of Hanoi: pho at dawn, the Old Quarter, egg coffee, Train Street and Ha Long's karsts.
5 min read
Three days of the engine city: the colonial core, Cu Chi's tunnels, the museums and the rooftops.
5 min read
The Southeast Asia guide: the value arc, the island seasons and the budgets.
9 min read