Need help booking?
Unpublished phone-only deals available
KTM to ALN: distance & flight time
Kathmandu (Tribhuvan International Airport) → Alton/St Louis (St Louis Regional Airport)
7,827 mi
12,596 km · 6,801 nm
15h 49m
estimated nonstop flight time
—
time difference · heading north
See live KTM→ALN fares Phone-only fares on this route — call free
Flight time details
7,827 miles nonstop takes roughly 15h 49m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
- ALN — St Louis Regional Airport · Alton/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 ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is KTM from ALN?
The flight distance from Kathmandu (KTM) to Alton/St Louis (ALN) is 7,827 miles (12,596 km, 6,801 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KTM to ALN?
A nonstop flight takes about 15h 49m 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 cheapest way to fly from KTM to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KTM–ALN that never appear on search engines, with no booking fees.