How many days: the honest arithmetic
Every itinerary you read online counts fourteen days and shows fourteen days of sightseeing. The real number is lower, because two of those days are flights home and away, and every internal move costs between half a day and a whole one. This page does the subtraction first and the planning second.
How a travel day disappears
A domestic flight in Vietnam looks cheap in time. Hanoi to Da Nang is 1 hour 20 in the air, Hanoi to Ho Chi Minh City is 2 hours 10. Then add two hours at each end — the transfer, check-in, security, the wait, the bags at the other side — and the same flight costs you roughly half a day. Two internal flights in a week and you have spent a full day getting between places rather than being in them.
Road distances behave the same way. The numbers below are the ones we use on every page of this site, so a quotation and an itinerary never disagree about how long something takes.
| The move | Time | Distance | What it does to the day |
|---|---|---|---|
| Noi Bai airport to central Hanoi | 45 min | 25 km | Nothing, if the flight lands before mid-afternoon |
| Hanoi to the Ha Long or Hai Phong pier | 2 hrs 30 – 3 hrs | 170 km | Half the morning; boarding is around midday |
| Bay pier back to Noi Bai airport | 3 hrs 30 | 190 km | Most of an afternoon. A flight out before 15:00 does not work |
| Hanoi to Sa Pa | 5 hrs 30 – 6 hrs | 315 km | A whole day each way unless you take the night train |
| Hanoi to Ha Giang city | 6 hrs | 300 km | A full travel day, and that is only the start of the loop |
| Hanoi to Ninh Binh | 1 hr 45 | 95 km | A genuine day trip, out and back, with time on the water |
| Hue to Da Nang over the Hai Van pass | 2 hrs 30 | 120 km | A half day, and worth doing by road rather than flying |
| Da Nang to Hoi An | 45 min | 30 km | Nothing. These are one destination in practice |
| Hanoi to Da Nang by air | 1 hr 20 in the air | — | About half a day with two hours at each airport |
| Hanoi to Ho Chi Minh City by air | 2 hrs 10 in the air | — | Half a day, and the single most common internal hop |
One line from that table decides more itineraries than any other: the pier to Noi Bai is 3 hours 30. It means a bay night cannot be followed by a morning flight, and it is the reason our four-day trip ends with a proper morning on the water and an evening departure rather than a 07:30 disembarkation.
What actually fits, by length
| Days | What genuinely fits | The journey that does it |
|---|---|---|
| 4 | One region, one base, one overnight move. Hanoi and a night on the bay, or Hue and the DMZ, or the city and the delta | Hanoi and Ha Long Bay, 4 days |
| 6 | One region done properly, or two regions at a pace you will resent. Hanoi, the bay and Sa Pa is the honest six-day trip | Hanoi, Sa Pa and Ha Long, 6 days |
| 8 | Two regions with one internal flight. North plus centre works; north plus centre plus south does not | Hanoi, Ha Long, Hue and Da Nang, 8 days |
| 10 | Three regions, moving. Two internal flights, three or four hotel changes, very little slack in the schedule | Vietnam highlights, 10 days |
| 12 | Three regions with room to breathe: two nights in most places, a rest day, and a northern mountain section or a beach at the end | Vietnam north to south, 12 days |
| 14 | Everything a twelve-day trip has, plus one specialised thread — light, food, a bicycle, or an island | Vietnam photography, 14 days |
| 21 | The country including the parts that need a day of driving to reach: Ha Giang, Phong Nha, the far delta | Vietnam in depth, 21 days |
The column that matters is the middle one. Four days is not a short version of ten days, it is a different trip with a different ambition, and it works well when it is planned as one. What does not work is a ten-day list of places squeezed into eight days of calendar.
Note also what is missing from the four- and six-day rows: Sa Pa in four days, Ha Giang in under five, the centre and the north together in six. Those are the three requests we most often decline, and the drive times in the table above are the whole reason.
The mistake almost everyone makes
Three regions in eight days. It appears in perhaps a third of the enquiries we receive, usually written as Hanoi, Ha Long, Hoi An, Ho Chi Minh City and the Mekong, and it is the one plan we will argue about before quoting.
Count it out. Day 1 is an arrival day, and after a long-haul flight most people are good for an afternoon walk and nothing else. Day 8 is a departure day, which usually means a transfer and an airport. That leaves six. The bay costs a day out and — because the pier is 3 hours 30 from Noi Bai — most of a day back. Two internal flights cost a day between them. Six minus three is three days of actual sightseeing spread across three regions, which is one day each in places that deserve two or three.
- You will see Hanoi through a car window between the airport and the pier.
- Hoi An gets one afternoon and one morning, which is not enough for the old town, My Son and Tra Que, so two of the three get cut on the day.
- The Mekong becomes a day trip out of the city, 2 hours each way to My Tho or Ben Tre, and you are back in traffic by six.
- You change hotel four times in eight nights. Packing and check-in is roughly an hour each time, so that is half a day of luggage.
- Any delay — a cancelled flight, a closed road — has nowhere to go, because there is no spare hour anywhere in the plan.
The fix is not more days, necessarily. It is fewer regions. Eight days across the north and centre is a good trip; eight days across all three is a transfer schedule with sightseeing attached. If eight days is genuinely your ceiling, take the eight-day north and centre route and leave the south for a second visit.
What one extra day is worth, and where to put it
Most itineraries are one day short rather than three. If you can find a single extra day, here is where it earns the most, in order.
A second night where you already are
Two nights in Hoi An instead of one converts a rushed afternoon into an early morning at My Son before the coaches, a bicycle ride to Tra Que, and an evening in the old town after the day trippers have gone. No transfer, no packing, all of the gain.
The day after the bay
A bay night followed by a 3-hour-30 drive to the airport is a hard day. Put a night in Hanoi after the boat and the whole end of the trip relaxes: a real last dinner, a daytime flight, no 04:30 alarm.
An arrival buffer
A day at the front absorbs a delayed long-haul flight and gives you one night of sleep before the first early start. It is the least glamorous use of a day and the one that most often saves a trip.
One drive you would otherwise skip
Ninh Binh at 1 hour 45 from Hanoi, or Pu Luong at 4 hours. Both are day-and-a-half propositions rather than day trips, and both change the shape of a northern week.
Where an extra day is worth least: adding a fourth region. A day is not enough to make a new region worth the flight, and the flight eats half of what you just added. The same logic runs the other way — if you are cutting a day, cut a region, not a night.
Party size changes none of this, but it changes what the days cost. Two travellers carry a whole vehicle and guide between them; six carry the same vehicle and the per-person figure falls by about a quarter. See what a Vietnam trip costs for the breakdown, and private or group for what you give up on a shared departure.
Count your own days before you write to us
Two rules make the arithmetic honest. First, the day you land is not a touring day; count it as half at best. Second, if your flight home leaves before midday, the last day is a transfer, not a day. A "ten-day trip" with an overnight arrival and an 08:00 departure is eight days of Vietnam, and the itinerary should be built for eight.
The other thing to settle at the same time is the month, because length and timing interact: a twelve-day north-to-south route in October runs into the central flood season, and a shorter northern route in the same month is close to perfect. When to go has the month-by-month table. Visas and entry has the paperwork, including the three working days the e-visa takes.
Tell us your dates, not your itinerary
Send the days you have and the two or three things you actually want, and we will come back with what fits and what we would leave out.
Questions travellers ask most
Do your day counts include the flights home and away?
Yes. A four-day trip means four days on the ground in Vietnam, with Day 1 as the arrival day and Day 4 as the departure day. That is why the four-day itinerary has two full touring days in the middle rather than four.
International flying time on top of that is your own. From western Europe expect to lose the better part of a day in each direction, which is worth remembering before booking a six-day trip.
Is four days in Vietnam worth it at all?
For one region, yes. Four days gives two nights in Hanoi and one on the water in Lan Ha Bay with a real morning at the end, and that is a coherent trip rather than a sampler.
For the country, no. Four days spread across Hanoi, Hoi An and Ho Chi Minh City is three airports and two hotel changes, and you will remember the transfers. If four days is what you have, spend them in one place — see the four-day northern trip.
Can we add Sa Pa to a one-week trip?
Only by giving up something else. Hanoi to Sa Pa is 5 hours 30 to 6 hours and 315 km each way, so a two-night stay costs three days of your week once you count the drives.
In a six- or seven-day northern trip that works, and it is exactly what the six-day route does. In a seven-day trip that also wants the centre, it does not: you would be flying to Da Nang on the back of two mountain drives, and something in the middle would be cut.
Does the overnight train to the north save a day?
It converts a daytime drive into a night, which is not quite the same as saving a day. You gain the daylight hours; you lose a night of proper sleep, and you still have a road transfer at the far end.
For parties who sleep well on trains it is a good trade and we use it. For parties who do not, a morning departure by private vehicle and an afternoon arrival is the better plan, because a tired first day in the mountains costs more than the hours it saved.
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