Most Three Passes itineraries run for 18 to 22 days from Kathmandu back to Kathmandu, and 20 or 21 days is the length that gives the best balance of safety, comfort and weather margin. Anything much shorter squeezes the acclimatisation that the route depends on. Everyone's body adapts differently, but the Three Passes spends so long above 4,500 m that rushed plans tend to fail on health rather than fitness.
What each length usually means
An 18 day plan is the practical minimum that still includes all three passes, Gokyo and Everest Base Camp. It usually has one rest day at Namche, one at Gokyo and little spare time, so it suits trekkers with prior altitude experience and good flexibility on dates. A 20 or 21 day plan adds a second acclimatisation night at Dingboche or Lobuche, a spare day for weather and a gentler pace on the pass days. A 22 day plan adds a full buffer for flights and for a bad weather window on one of the passes.
Where extra days are worth spending
- At Namche Bazaar, to begin the high section properly adapted.
- At Gokyo, before Cho La, because you will have just crossed Renjo La.
- At Dingboche or Chhukung, before the last pass.
- One spare day at the end for flight delays.
Why not shorten it by flying out
Some trekkers consider a helicopter return from Gorak Shep or Lukla to save two or three days at the end. This is a legitimate option if you run short of time or feel unwell, but it does nothing for the climb and it does not shorten the highest section. Ask your operator whether a helicopter return is possible, what it costs and who pays if you only use it because the schedule slipped.
How to count your leave
Add one day to reach Kathmandu, at least one night in Kathmandu before the trek for permits and a briefing, the trek itself and one buffer night at the end. For a 20 day trek that usually means between 23 and 25 days away from home. If you travel from India, flights to Kathmandu are short, so you can often trim a day compared with long-haul visitors.
A simple rule of thumb
If you have never been above 4,500 m, choose 21 or 22 days. If you have trekked at that height before and know how you sleep there, 19 to 20 days is realistic. If you only have 14 to 16 days, a Gokyo Lakes trek or the classic Everest Base Camp trek will give a safer and more enjoyable holiday than a rushed Three Passes. Our team can help you choose.
