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WBU to KTM: distance & flight time
Boulder (Boulder Municipal Airport) → Kathmandu (Tribhuvan International Airport)
7,707 mi
12,404 km · 6,698 nm
15h 35m
estimated nonstop flight time
+11.8h
time difference · heading north
See live WBU→KTM fares Phone-only fares on this route — call free
Flight time details
7,707 miles nonstop takes roughly 15h 35m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.8-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
Near KTM
- SIF · Simara Airport44 mi away
- RHP · Ramechhap Airport48 mi away
- BHR · Bharatpur Airport57 mi away
- MEY · Meghauli Airport70 mi away
Frequently asked questions
How far is WBU from KTM?
The flight distance from Boulder (WBU) to Kathmandu (KTM) is 7,707 miles (12,404 km, 6,698 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to KTM?
A nonstop flight takes about 15h 35m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Boulder and Kathmandu?
Kathmandu is 11.8 hours ahead of Boulder.
What is the cheapest way to fly from WBU to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–KTM that never appear on search engines, with no booking fees.