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KTM to STL: distance & flight time
Kathmandu (Tribhuvan International Airport) → St. Louis (St Louis Lambert International Airport)
7,838 mi
12,613 km · 6,811 nm
15h 50m
estimated nonstop flight time
-10.7h
time difference · heading north
See live KTM→STL fares Phone-only fares on this route — call free
Flight time details
7,838 miles nonstop takes roughly 15h 50m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.7-hour time set-back when reading arrival times on your ticket.
The two airports
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
- STL — St Louis Lambert International Airport · St. Louis, United States
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 KTM
- SIF · Simara Airport44 mi away
- RHP · Ramechhap Airport48 mi away
- BHR · Bharatpur Airport57 mi away
- MEY · Meghauli Airport70 mi away
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Frequently asked questions
How far is KTM from STL?
The flight distance from Kathmandu (KTM) to St. Louis (STL) is 7,838 miles (12,613 km, 6,811 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KTM to STL?
A nonstop flight takes about 15h 50m 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 Kathmandu and St. Louis?
St. Louis is 10.7 hours behind Kathmandu.
What is the cheapest way to fly from KTM to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KTM–STL that never appear on search engines, with no booking fees.