Key takeaways
- A Three Passes day runs 5 to 8 hours of walking plus tea house stops; budget 10 to 12 hours from breakfast to bed at altitude.
- The trek tops out at 5,535 m on Kongma La, not at Everest Base Camp; the passes are the harder days, not the summit.
- Choose the 21-day variant if it is your first time above 5,000 m, the 18-day variant if you have done EBC before.
- Crampons are not always needed but they earn their weight in March, early April, and after fresh snow on Cho La and Kongma La.
In this guide (7 sections)
Eighteen days is the shortest realistic plan for the Three Passes, and most operators will quietly tell you to take twenty-one. The reason is not scenery. It is the simple fact that you cross three cols above 5,300 m and you cannot compress altitude, however fit you are. We send clients on this trek every spring and autumn, and the difference between the 18-day and 21-day version is almost always one extra acclimatization night, not extra sightseeing. Decide which fits before you look at the calendar.
The Three Passes is not Everest Base Camp with bonus climbs on the side. EBC sits at 5,364 m and you walk there gradually. Kongma La, Cho La, and Renjo La sit at 5,535 m, 5,420 m, and 5,360 m, and you climb to each from a high camp in a few hours of steep scree or snow. The mental shift matters. You are committing to three pass days where the trail tops out above any altitude you have probably walked at before.
Three Passes vs the Alternatives
Most trekkers pick between three Khumbu itineraries: the classic EBC walk to base camp and back, the Gokyo Lakes and Renjo La loop, and the Three Passes that joins both with the Kongma La detour. The Three Passes is the longest and the most committing. It is also the most varied, because you visit three valleys that never see each other from the trail.
If you only care about standing at base camp and getting a photo of the Khumbu Icefall, you do not need the Three Passes. A standard EBC trek tops out lower, costs less, and fits in twelve to fourteen days. If you only care about Gokyo Ri and the lakes, do the Gokyo loop with the Renjo La add-on in about twelve days. The Three Passes only makes sense if you want all three crossings and you have the time to do them properly. See the Everest Base Camp trek page for the shorter option if altitude budget is tight.
The Hour by Hour Shape of a Pass Day
A pass day has the same rhythm whether it is Kongma La, Cho La, or Renjo La. You are moving early, you are moving steadily, and you are off the col by early afternoon. We tell clients to treat the day like a flight: brief, punctual, and no surprises. A pass day rarely involves more than six hours of walking, but the elevation gain per hour is brutal, which is why the body reads it as ten.
The 5 a.m. wake-up is not a suggestion. By 7 a.m. you want to be on the trail. Mornings are calm, the snow is still frozen, and you get the col before clouds build. By 11 a.m. you want to be descending the far side. Afternoon wind on Kongma La and Cho La regularly hits forty to sixty kilometres an hour, and a descent that felt fine in the morning becomes miserable if you are still up there.
- 5:00 to 5:30 a.m. Wake-up, dress in summit layers, pack water and snacks in daypack
- 5:30 to 6:30 a.m. Tea and porridge at the lodge, sometimes dal bhat if you can eat early
- 6:30 to 7:00 a.m. Final boot-up, headlamp on if still dark, leave the lodge
- 7:00 to 9:30 a.m. Steady climb to the col, breaks every forty minutes, no long rests
- 9:30 to 10:30 a.m. On the pass, photos, snack bar, water, do not linger more than 20 minutes
- 10:30 a.m. to 1:30 p.m. Descent to next valley, lunch at Machhermo, Dzonglha, or Chhukung depending on direction
- 1:30 to 3:30 p.m. Afternoon walk into the next village, slow because legs are heavy
- 3:30 to 5:00 p.m. Tea house, hot drink, wash face, check boots
- 6:00 to 7:30 p.m. Dinner, usually dal bhat or Sherpa stew, then sleep by 8
The pass is at 10 a.m., not 2 p.m. People who push late to avoid clouds end up fighting wind and altitude at the same time. Move early and the mountain gives you a window.
Pemba, lead guide, Khumbu spring 2025
Comparing the Three Passes on Paper
The three cols are often listed side by side like they are interchangeable. They are not. Kongma La is the highest and the most remote. Cho La has the most technical ground, a short section of steep snow or ice just below the top that catches people out. Renjo La is the easiest of the three on a clear day but the most exposed to wind from the west. You will feel all three differently.
Weather windows on all three are narrow. March and early April see more snow on the cols, which is why we recommend carrying crampons even if you never put them on. October and November are drier and the rock is mostly clear. Late November and December can be bitter but stable. For a full month-by-month view of timing, our Nepal trekking packages calendar is worth checking before you book flights.
| Pass | Highest point | Approx walking hours from high camp | Difficulty | Crampons useful? | Best window |
|---|---|---|---|---|---|
| Kongma La | 5,535 m | 5 to 7 | Hard | Early season / after snow | Mid-Oct to late Nov |
An 18-Day vs a 21-Day Itinerary
The 18-day version compresses acclimatization to one night in Namche and one night in Dingboche. It works for fit trekkers who have previously slept above 5,000 m. The 21-day version adds rest days at Gokyo and sometimes Chhukung, which is where most of the difference actually lives. You are not walking more in 21 days. You are walking less per day, with shorter afternoon legs, which is what keeps people healthy at altitude.
Cost-wise, the difference is mostly tea house nights. Budget around NPR 4,000 to 6,500 per person per night in the Khumbu for a twin room with three meals, depending on whether you are in the October peak or shoulder season. Three extra nights, mostly at Gokyo and Chhukung, add roughly NPR 12,000 to 19,500. If you do not have three weeks, do not pretend a shorter schedule is the same trek. Choose EBC instead.
- Days 1 to 3: Fly or drive to Lukla, trek to Phakding, then Namche Bazaar
- Days 4 to 5: Acclimatization day in Namche, optional hike to Everest View Hotel
- Day 6: Trek to Tengboche or Deboche via the Dudh Kosi
- Day 7: Trek to Dingboche via Pangboche
- Day 8: Rest day at Dingboche, hike to Nangkartshang peak
- Day 9: Trek to Chhukung
- Day 10: Cross Kongma La to Lobuche
- Day 11: Trek to Gorak Shep and Everest Base Camp, sleep at Gorak Shep or descend to Lobuche
- Day 12: Trek to Dzonglha
- Day 13: Cross Cho La to Thagnak or Gokyo
- Day 14: Acclimatization at Gokyo, climb Gokyo Ri
- Day 15: Trek to Lungden via the fifth lake
- Day 16: Cross Renjo La to Marlung
- Day 17: Trek down to Thame or Namche
- Day 18: Trek to Lukla
- Day 19: Fly back to Kathmandu or Ramechapa
Where the Real Time Goes
Most of the day on a Three Passes day is not walking. Breakfast at the lodge takes thirty to forty-five minutes. Lunch, if you stop at a tea house, takes an hour. Tea breaks add up to roughly forty minutes over the day. Even on a six-hour walking day, you are at the table or on a bench for another two to three hours. Plan for it.
The other chunk of time is weather. If the morning is foggy, you wait. If the col is whiteout, you wait or you turn back. We have spent entire mornings in Chhukung waiting for Kongma La to clear. A good guide reads the sky at first light and makes the call before you have finished your porridge. That decision, more than any training plan, is what gets people across in safety.
Food adds its own tax. Dal bhat is the smart choice because refills are free and the carbohydrates help at altitude. Most lodges charge NPR 600 to 900 for dal bhat in the Khumbu, more in October peak. Eggs are NPR 150 to 250 each. A bowl of Sherpa stew runs NPR 450 to 700. Soup at altitude is worth every rupee even when you are not hungry.
When the Day Breaks and When It Ends
Above 4,500 m, your body clock shifts. You wake earlier, you crash earlier, and you sleep worse. Lodges turn generators off by 9 or 10 p.m. and most trekkers are in bed by 8:30. Sleeping at altitude in the Khumbu is cold year-round. Lodges are unglazed or single-glazed, and a good minus-fifteen-degree-Celsius sleeping bag is not optional. We have had clients turn back on day six simply because they could not sleep.
Dawn at Gokyo is around 5:30 a.m. in October. By 7:30 a.m. you should be above the moraine if you are climbing Gokyo Ri. Sunset is around 5:45 p.m. and the temperature drops fast. Plan your day around daylight, not clock time. Most trekkers find that after four or five days above 4,000 m, their legs and lungs adjust and the hours feel longer, which is a good thing when you need to pace yourself up a col.
| Item | Cost (USD) | Notes |
|---|---|---|
| Kathmandu to Lukla flight | 180 to 220 | Round trip, TIA to Lukla, weather dependent |
Total realistic budget, excluding international flights, sits between USD 2,800 and USD 3,800 per person for a guided 21-day trek in October 2026. The 18-day version cuts roughly USD 300 to 500 from accommodation and porter days, but does not change the flight or permit cost.
Which Variant to Book in 2026
Book the 21-day version if this is your first trek above 5,000 m. The extra acclimatization is not a luxury, it is the only reason you might finish with all three passes. Book the 18-day version if you have done EBC or another high trek and you know how your body responds above 5,000 m. Book neither if you have less than sixteen full days including Kathmandu transfers.
For autumn 2026, mid-October to early November is the safest window. Early October still has monsoon residue on the cols, late November starts to feel December. Spring 2026, the equivalent is the first half of April. We carry crampons from late February through the end of April regardless of the forecast. They weigh almost nothing in a porter bag and earn their place every time the col is iced over.
The Three Passes is a strong trek for solo trekkers willing to join a group, less so for fully solo walkers. The trails are busy enough that you will find company in the lodges, but the technical sections and the weather calls benefit from a guide who has read the mountain that morning. If you want to compare with shorter Khumbu itineraries, the Mardi Himal trek or the Ghorepani Poon Hill trek are good ways to test your legs before committing to three weeks at altitude.
Walk slow. Wake early. Eat dal bhat twice a day. The pass will still be there at ten in the morning.
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Frequently asked questions
How hard is the Everest Three Passes compared to EBC?
The Three Passes is harder because you cross three cols above 5,300 m rather than topping out at base camp at 5,364 m. Total walking days are also longer, typically eighteen to twenty-one versus twelve to fourteen for the standard EBC trek. If you have done EBC without symptoms, you can do Three Passes. If you have not, do EBC first.
Do I need crampons for the Three Passes?
Crampons are not mandatory every day but they are strongly recommended for March, early April, and any week after fresh snow on Kongma La or Cho La. Yaktrax do not work on the hard ice of the Cho La step. Carry real crampons, even if you never strap them on. Your guide will decide at the trailhead whether the col needs them.
Which pass is the hardest?
Kongma La is usually the hardest because it is the highest at 5,535 m and the approach from Chhukung involves a long, steady climb on rocky terrain. Cho La has a short, steep, icy step just below the top that is the most technical single section on the trek. Renjo La is the easiest of the three on a clear day but the most exposed to wind. Plan and pack for the hardest, not the easiest.
How much does the Three Passes cost in 2026?
A guided twenty-one-day trek in October 2026 runs roughly USD 2,800 to USD 3,800 per person, including Kathmandu-Lukla flights, permits, guide and porter, tea house accommodation and meals. The Lukla flight alone is USD 360 to 440 round trip and is the single biggest variable. Weather delays can add another USD 200 to 400 in extra nights.
When is the best month for the Three Passes?
Mid-October to early November is the most reliable window. The monsoon has cleared, the lodges are open, and the cols are usually snow-free. Late November and December are colder but often stable. Spring is the second-best window, with the first half of April being the prime time. January and February are possible but very cold, and February sometimes still has winter snow on the cols.
Can I do the Three Passes without a guide?
Solo trekking is technically possible but practically risky above 5,000 m. The cols have short technical sections where a guide reading the snow decides whether it is safe to cross. If you go solo, you still need a TIMS card and the Sagarmatha National Park permit, and you need a real plan for weather days. For most trekkers, the cost of a guide is worth it for the safety margin and the lodge logistics.
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