The order

First, the fixed points. Anything with a quota, a permit, a timed entry or a limited capacity. Machu Picchu tickets, Alhambra tickets, Anne Frank House, Vatican early access, national park lodges, a specific cruise sailing, a family tour departure. These sell out furthest ahead and they cannot be fixed later.

Second, the shape of the trip. How many nights where. Do not book anything else until this is settled, because changing it afterwards is where money is lost.

Third, flights. Once you know your dates and your entry and exit cities.

Fourth, accommodation. Book refundable rates wherever possible at this stage.

Fifth, internal transport. Trains and car hire.

Sixth, everything else. Guides, restaurants, day trips.

People do this almost exactly backwards, starting with flights because that feels like committing, and then building a trip around a flight that did not suit the trip.

How far ahead

Timed-entry attractions and permits. As soon as the booking window opens, which for some is a year ahead and for others is a fixed number of days before, and those two systems require entirely different behaviour. Find out which applies.

In-park national park lodges in the United States. Roughly a year, and they go within minutes.

Popular family tour departures and river cruise family sailings. A year for peak summer.

International flights. Generally three to six months out is the useful window, though this varies by route and season.

European train advance fares. Three to six months.

Accommodation. Three to six months for summer in popular places, and considerably earlier for anything small.

Restaurants worth booking. One to two months, sometimes more.

The refundable rate question

Book refundable early, then re-check closer to the date. This is the single most useful habit in independent planning.

You lock in availability when you do not yet know your plans, and you keep the option of switching if a better price or a better property appears.

Non-refundable rates save real money and should only be taken once the trip is genuinely fixed, which is usually much later than people commit.

Set a calendar reminder to re-check about six weeks out. Prices move and free cancellation means the downside is nothing.

The mistakes that cost the most

Booking flights first and building the trip around them.

Too many bases. Every hotel change costs you the best part of a day, and families consistently plan more moves than they should. Three nights minimum in each place, four if you can.

Underestimating transfer time. The train takes two hours and the day takes five once you have packed, checked out, travelled, arrived, checked in and found somewhere to eat.

Not checking passport validity and entry requirements early. Many countries require six months validity beyond your travel dates, and some require advance travel authorisation which takes time. Check the moment you decide to go.

Forgetting that school holidays are when everybody else goes, and that booking the same trip two weeks either side of them is often dramatically cheaper.

A workable planning sequence

Decide roughly where and when. Check school dates and any family constraints.

List the two or three things everybody would be disappointed to miss. Check what those require and when they release.

Sketch the nights. Write it as a simple list of dates and places.

Book the constrained things. Then flights. Then accommodation on refundable rates.

Leave a third of your days with nothing planned. This is not laziness, it is what makes the trip survivable, and it is the step people cut first and regret most.

When to stop doing it yourself

When there are more than about four moving parts that depend on each other. Multi-country rail routing, cruise plus land, anything with permits and timed entries stacked together.

When a mistake would be expensive or unfixable. Missed connections, visa requirements, a non-refundable series of bookings.

When you have spent more hours on it than the saving is worth, which happens more often than people admit.

Booking through an advisor generally costs the same as booking direct, because we are paid by the suppliers rather than by you, and there is somebody accountable if it goes wrong at eleven at night in a foreign airport.

Questions people actually ask