Four days is the shortest version of this trip that still leaves room to breathe. This is the one that sleeps in Cusco each night; if you are walking, the same four days shift and the city morning goes.
Day 1: Arrival, and Not Much Else
You land at Alejandro Velasco Astete International Airport in Cusco, a city at 3,399 meters, and the honest plan for the rest of the day is a bed and a bottle of water. Hotel rooms in Cusco often are not ready until the afternoon, since check-in tends to run between 1 and 3 pm, so an early flight buys you a luggage store rather than a shower.
If you arrange your own transfer, authorized airport taxis charge around $3 to $5 for the 10 to 15 minute ride into the center, and ride-hailing apps do not operate there. However you get in, keep the first evening small: no alcohol, light food, coca tea if you want it. The temptation is to walk the plaza at sunset. Give it an hour, not four.

Day 2: Cusco and the Ruins Above It
This is the day the altitude earns its keep, because it is mostly standing and short walks rather than climbing. A shared Cusco tour usually starts at Coricancha, the Santo Domingo Convent built over the Inca sun temple, then moves to the Cathedral Basilica of the Virgin of the Assumption in the main square.
Then the bus climbs out of the city to Sacsayhuamán, the fortress on the hill, and carries on through Qenqo, Puca Pucara, and Tambomachay, known as the Inca spa. Those four sites run on one ticket, the partial Cusco Tourist Ticket at 152 PEN, and it is personal and non-transferable, so keep it on you and validate it at each gate.
A shared tour earns its money on day two for a reason that has little to do with history. Somebody else handles the driving and the ticket checks while you spend your energy on the altitude, and the morning starts gently rather than with you behind a wheel.
Day 3: Machu Picchu
The morning starts with a shared transfer to Ollantaytambo and a pickup window of up to 30 minutes, the one appointment of the week you should not treat loosely. Train to Aguas Calientes, bus up for 25 minutes, and then the citadel itself. As of November 2026, first entry requires a guide, and the guided walk runs about two and a half hours, so this is not a site you wander at your own speed from the gate.
Two things follow from that. The circuit you get, Circuit 2 or Circuit 3, is assigned by availability rather than chosen in advance. And if the climb to Machu Picchu Mountain is the point of the day for you, you have half an hour from your entry time to reach the trailhead. That is why the entry slot, not the train, sets the day.
The afternoon runs in reverse: bus down, a set lunch at Café Inkaterra looking over the Vilcanota River, train back to Ollantaytambo, transfer to the hotel.

Day 4: The Flight Out
Day four is a transfer to the airport and nothing else, so the flight time matters more than it looks. A morning departure leaves room for a pickup that runs late; an afternoon flight leaves you in a lobby with your bags. If you are booking your own domestic flights, take the early one.