Kathmandu-Lukla Flights Shut Down for All of Autumn 2026 — Why Every Everest Trekker Now Flies From Manthali Instead
Nepal's aviation authority again grounds direct Kathmandu-Lukla flights from 25 September to 30 November 2026 — here's why the Ramechhap diversion actually makes flying to Everest Base Camp more reliable, and how many buffer days to plan for.
Lukla's Tenzing-Hillary Airport is famous as the world's most dangerous, a single sloped runway cut into a mountainside at 2,860 metres with a cliff at one end and a rock wall at the other. It is the gateway almost every Everest trekker flies through. Yet for the whole of autumn 2026, hardly any of those flights will actually leave from Kathmandu at all.
From 25 September to 30 November 2026, Nepal's Civil Aviation Authority (CAAN) is again routing every scheduled Lukla flight away from Kathmandu's Tribhuvan International Airport and onto a small regional strip at Manthali, in Ramechhap district around 132km to the southeast. This is not a one-off closure. CAAN first ordered the diversion in 2022 to ease congestion at Kathmandu during the two peak trekking windows, spring (mid-March to mid-May) and autumn (late September to late November), and it has run every peak season since, autumn 2026 included.
Key facts
- Autumn 2026 diversion window: 25 September to 30 November
- Road transfer Kathmandu to Manthali: roughly 4 to 5 hours on the BP Highway, usually leaving around 1:30am
- Manthali to Lukla flight time: about 15 to 20 minutes
- Direct Kathmandu-Lukla flights in peak season: reserved for aircraft repositioning only, a small fraction of autumn departures
The reason is weather, not bureaucracy. Kathmandu's morning haze and rising afternoon cloud narrow the usable flying window for the small STOL aircraft that serve Lukla, so decades of Everest-bound traffic squeezed through a handful of clear-sky hours at one of Nepal's busiest international airports, producing long queues and multi-day pileups whenever cloud closed in early. Manthali sits lower and clearer, with a longer, cleaner visual-flight window each morning, so airlines can run several rotations back-to-back before midday cloud builds over the foothills.
Flights run direct Kathmandu-Lukla, but low cloud and rain ground aircraft for hours, sometimes days, at a stretch.
CAAN's seasonal order takes effect. Every scheduled flight moves to the Ramechhap airstrip for the rest of autumn.
Nepal's clearest, most stable air of the year, and the fastest, most reliable stretch to fly Lukla all season.
The mandate lifts and direct Kathmandu-Lukla flights resume for the quieter winter months.
| Route | Share of flights | Transfer time | Air time |
|---|---|---|---|
| Kathmandu → Manthali (road) → Lukla | ~99% | 4-5 hrs | 15-20 min |
| Kathmandu → Lukla (direct) | <1% | — | 30-35 min |
The diversion adds cost as well as time: the road transfer typically adds a shared jeep or bus fare on top of the standard one-way Lukla airfare, on top of an earlier alarm clock. It is a trade nearly every operator and airline in the Khumbu now treats as worth making, because a five-hour drive beats a five-day flight backlog.
What this means for trekkers
Practically, it means your Everest Base Camp trip does not start with a flight, it starts with a pre-dawn drive. Most agencies, ours included, collect trekkers between 1am and 2am for the run east on the BP Highway, aiming to reach Manthali in time for the first flight wave once visibility opens. It is a long start to day one, but it is also the safer, steadier option: airlines consistently report far fewer weather cancellations flying out of Manthali than out of Kathmandu across the same weeks, precisely because Ramechhap clears earlier and holds its window longer.
What this means for your trip
Build at least one full buffer day into any Everest Base Camp itinerary, on both ends of the Lukla flight, and two if your onward international flight cannot move. Even Manthali's better weather cannot fully rule out a fogged-in morning in late autumn, and a single missed rotation can cascade into a two or three day backlog while airlines work through the queue. If your schedule truly cannot absorb a delay, a helicopter transfer is the fastest way to jump a backlog once one forms.
None of this changes what the trek itself costs or requires, only how you reach its start line. Our 14-day Everest Base Camp itinerary already carries a contingency day for exactly this reason, and travellers who would rather remove flight risk altogether can fly the entire route by helicopter on our helicopter return trip instead. Either way, plan around Manthali, not Kathmandu, and this autumn's flight schedule will not catch you out.
Source: The Himalayan Times, reporting on CAAN's seasonal Ramechhap-Lukla diversion policy.
Cover photo: Steve Hicks via Wikimedia Commons (CC BY 2.0).
Source: The Himalayan Times
Planning a trek?
We handle the permits, logistics & guides
NMA-certified local guides, transparent pricing, 5,000+ treks since 1998. Tell us your dates and we'll sort the rest.
Popular Nepal treks
All treks →
More in Flights & Access
Flights & Access
Nepal Domestic Flight Fares Are Up 40% in 2026 — What It Means If You're Flying to Pokhara or Lukla
Jet fuel prices nearly doubled overnight in April, domestic airlines lost over half a million passengers in a single year, and the routes trekkers use to reach the mountains were hit hardest.
Flights & Access
Booking a Nepal Trek for October 2026: How Late Is Too Late?
One bottleneck airport and one two-week festival shape the whole month — know which part of October you're aiming for and the risk mostly disappears.
Flights & Access
Planning a Nepal Trek from Malaysia in 2026: Flights, Ringgit Costs & Halal Food
Kuala Lumpur to Kathmandu is under 5 hours direct — one of the easiest gateways to the Himalaya in all of Asia. Here are the real flights, an all-in cost in ringgit, and where to eat halal on the trail.
Latest from the desk
Industry & Tourism
How Much Should You Tip Your Nepal Trekking Guide and Porter in 2026? The Real Numbers
Nepal has no official tipping rate — but gratuities make up an estimated 30-50% of a guide or porter's yearly income. Here's what international trekkers actually pay, verified against porter-welfare guidelines.
Safety & Advisories
Everest Base Camp: Trek It or Fly It? The Honest 2026 Cost, Time and Safety Comparison
A helicopter can put you at Everest Base Camp in one day for about the same group price as the trek. Here's what the extra 9-14 days actually buy you, according to CDC altitude-risk guidance and our own 2026 pricing.
Safety & Advisories
How Fit Do You Actually Need to Be for Everest Base Camp vs Annapurna Base Camp? The Honest 2026 Benchmarks
EBC and ABC are both sold as moderate treks, but altitude, not distance, is what actually separates them. Here are the real training benchmarks, not the hype.