The short answer: for most people, Quito’s 2,850 m (9,350 ft) is uncomfortable rather than dangerous. Expect a mild headache, breathlessness on stairs, poor sleep, and low energy for the first 24–48 hours, then steady improvement. Serious altitude illness is rare at Quito’s height — it becomes a real planning issue only when you push higher, to the TelefériQo (3,945 m), Quilotoa (3,900 m), or the big volcanoes. The fix is mostly free: arrive, go slowly for two days, drink water, skip the first night’s beers, and climb higher only after you’ve adjusted. Here’s exactly how it plays out and how to speed it up.
How High Is Quito, Really?
Quito is the second-highest capital city in the world after La Paz, strung along an Andean valley at roughly 2,850 m — well above the ~2,500 m threshold where acute mountain sickness (AMS) starts appearing in medical literature. Crucially, almost everything you’ll do from Quito goes up:
- Quito old town: ~2,850 m
- TelefériQo cable car (Cruz Loma): 3,945 m
- Rucu Pichincha summit: 4,698 m
- Quilotoa crater rim: ~3,900 m
- Cotopaxi refuge / summit: 4,864 m / 5,897 m
- Chimborazo summit: 6,263 m
That ladder is actually good news. Quito is a near-perfect acclimatisation base: high enough to trigger adaptation, low enough that adaptation is easy — which is why sensible Ecuador itineraries start in Quito rather than flying straight into ambitious hikes.
Symptoms Timeline: What the First Days Feel Like
Hours 0–6: the arrival wobble
Stepping off the plane, most people feel nothing beyond slight breathlessness hauling luggage. Some notice a light head or faster pulse within a few hours. Quito’s airport sits a little lower than the city (about 2,400 m), so symptoms often start after you check in, not on landing.
Hours 6–24: the peak of it
AMS symptoms typically peak in the first night and morning: a dull frontal headache, disturbed sleep with odd waking-and-gasping moments (periodic breathing — unnerving, common, harmless), mild nausea or appetite loss, and fatigue out of proportion to what you’ve done. Quito’s hilly streets make every staircase feel like a gym session. Roughly a quarter to half of sea-level arrivals at this elevation report at least one symptom.
Days 2–3: the turn
For the large majority, day two is noticeably better and day three feels close to normal at city altitude. Your breathing rate and heart rate stay slightly elevated for days — that’s the adaptation working, not a problem.
When it’s not normal
A headache that worsens despite fluids and painkillers, vomiting, confusion, stumbling, or breathlessness at rest are red flags for severe AMS or, rarely, cerebral or pulmonary oedema (HACE/HAPE). These are very unusual at 2,850 m but medical emergencies at any height: the treatment is descent and a clinic, not toughing it out. Quito’s private hospitals and pharmacies handle soroche daily.
A 5-Day Acclimatisation Plan Before Cotopaxi or Chimborazo
If your trip builds toward high hikes or a summit attempt, sequence it like a ladder instead of a lottery:
- Days 1–2 — Quito, gently. Old-town wandering, museums, long lunches. No alcohol on night one, minimal on night two, and 3+ litres of water a day. This is prime time for the city’s flatter neighbourhoods — La Floresta cafés over stair-heavy Panecillo climbs.
- Day 3 — TelefériQo test flight. Ride the cable car to Cruz Loma at 3,945 m and walk the ridge for an hour or two. This is a superb, low-commitment altitude test: if you feel merely puffed, you’re adapting well; if you feel awful, you have your answer about attempting anything higher this week — and the descent is a 20-minute gondola, not a mountain rescue.
- Day 4 — sleep a bit higher or hike moderate. Otavalo and the Cuicocha crater loop (3,200–3,500 m), or a Cotopaxi National Park day trip to the 4,864 m José Rivas refuge, following the classic mountaineer’s rule: climb high, sleep low.
- Day 5+ — the big stuff. Quilotoa’s rim, Rucu Pichincha’s summit, or the start of a guided Cotopaxi programme. Reputable operators require exactly this kind of profile before a 5,897 m attempt; anyone selling you Cotopaxi’s summit on day two of your trip is selling you a miserable night.
Heading the other way relieves everything: Baños (1,820 m), Mindo (1,250 m), the Amazon and the coast are all effectively altitude-free, and the Galápagos sit at sea level. If altitude hits someone in your group hard, re-ordering the itinerary downhill for a few days is a legitimate fix — just route the lowland legs with our region-by-region Ecuador safety check in hand.
Coca Tea, Pills and What Actually Works
Acetazolamide (Diamox) — the one with real evidence
Acetazolamide speeds acclimatisation by nudging your breathing chemistry, and it’s the prevention drug backed by CDC and Wilderness Medical Society guidance — typically 125 mg twice daily, started the day before ascent and continued for the first two days or so at altitude. It’s prescription-only in most countries, causes tingling fingers and makes beer taste flat (truly), and is unsuitable for people with sulfa allergies. For a straightforward Quito city stay most travellers don’t need it; for a fast itinerary that sleeps high early, it’s worth discussing with a travel clinic.
Painkillers and the boring basics
Ibuprofen or paracetamol handle the altitude headache. Hydration matters because Quito’s dry, thin air dehydrates you faster than you notice, and dehydration mimics AMS. Alcohol and sleeping pills both worsen night-time breathing at altitude — the first 48 hours is the time to skip them. Eat lighter than usual; digestion competes for oxygen you don’t have spare.
Coca tea — manage your expectations
The famous Andean remedy is more of a Peru and Bolivia institution than an Ecuadorian one; don’t count on finding mate de coca on every Quito menu the way you would in Cusco. Locals are likelier to hand you a cinnamon-and-citrus tea and tell you to rest. Evidence for coca tea is thin anyway — mild stimulant, pleasant ritual, no proven acclimatisation effect. And whatever you do, don’t carry coca leaves or tea bags onward across borders: they’re illegal in the U.S., much of Europe, and most of the world.
Oxygen cans and “altitude apps”
Canned oxygen gives a few minutes of relief and then wears off — fine as a psychological crutch, useless as a strategy. Adaptation is the only cure, and it’s free.
Who Should Actually Worry
- People with heart or lung conditions (COPD, heart failure, pulmonary hypertension, severe asthma) should clear the trip with their doctor — Quito’s oxygen level is about 72% of sea level’s effective pressure, a genuine cardiovascular load.
- Anyone with a previous bad AMS episode. Prior history is the strongest single predictor; pre-emptive acetazolamide is often sensible.
- Pregnant travellers are generally fine visiting Quito itself but should discuss anything above ~3,000 m with their obstetrician.
- Fit young people who sprint. Fitness does not protect against AMS — the classic victim is the marathon runner who lands and immediately goes hiking. Pace beats fitness at altitude, every time.
Children acclimatise about as well as adults but can’t always articulate symptoms — watch for unusual fussiness, appetite loss, and lethargy, and be conservative about taking them high.
FAQ
Will I get altitude sickness in Quito?
You’ll probably feel the altitude — breathlessness on hills, maybe a first-night headache and poor sleep — but full-blown AMS needing treatment is uncommon at 2,850 m. Around half of visitors notice symptoms; the vast majority are fine within 48 hours.
How long does it take to acclimatise to Quito?
Two to three days for city altitude. Give it four to five days (including a TelefériQo or similar test to ~4,000 m) before committing to Quilotoa, Rucu Pichincha, or any Cotopaxi programme.
Should I take Diamox just for Quito?
Usually no — for a city-based visit, gradual pacing and hydration are enough. Consider it (with a doctor’s advice) if you’ve had AMS before, or your itinerary sleeps above ~3,000 m within the first couple of days.
Is the TelefériQo safe to ride on your first day?
It runs, and people do it, but jumping from sea level to 3,945 m within hours of landing is the classic way to feel dreadful. Ride it on day three instead — it doubles as a perfect test of how your acclimatisation is going.
Does altitude affect Cuenca and Baños too?
Cuenca (2,560 m) is gentler than Quito and rarely troubles anyone more than a day. Baños (1,820 m), Mindo, the Amazon, the coast, and the Galápagos are low enough to ignore altitude entirely — useful escape valves when planning your route around Ecuador.