Part of the data ring
FlyTime
LAX → KTM

Los Angeles to Kathmandu

16h 13mgate to gate

The flight from Los Angeles International Airport (LAX) to Tribhuvan International Airport (KTM) covers 12,718 km (7,903 miles) and takes approximately 16h 13m gate to gate for a typical jet.

The route heads north-west on an initial great-circle bearing of 337°, passing near 70.7° N, 154.7° E at its midpoint.

Great-circle strip Plate LAX–KTM
16h 13mGATE TO GATE4h 03m12h 10mLAXLos AngelesKTMKathmandu337° NORTH-WEST6,867 NM03,1806,3599,53912,718 km

Bearing 337° north-west Midpoint 70.7° N, 154.7° E Model 805 km/h + 25 min

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Flight time16h 13mestimated, gate to gate
Distance12,718km · 7,903 mi
Nautical6,867nautical miles
Direction337°north-west

How this is worked out

  1. Take both airports' published coordinates from OurAirports — nothing here is scraped from another flight site.
  2. Great-circle distance by haversine on a mean earth radius of 6,371.0088 km: 12,718 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 15h 48m.
  4. Add a flat 25 minutes for pushback, taxi, climb, descent and taxi-in — the reason a 400 km hop is never half an hour: 16h 13m gate to gate.
  5. Winds, aircraft type and airline schedule padding are not modelled. The cruise-speed table shows how much that assumption is worth.
12,718 km / 805 km/h = 15h 48m airborne
            + 25 min ground = 16h 13m gate to gate

The full model, and what it ignores →

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

The same route, plotted on a world grid

The strip above gives the route its length and its shape. This gives it a position: latitude and longitude only, no coastlines, because a hand-drawn coastline would be decoration pretending to be data. On a flat grid the shortest path looks bent; on a globe it is straight.

LAX KTM

Flight time at different cruise speeds

Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.

Typical ofCruise speedAirborneGate to gate
Turboprop / regional550 km/h23h 07m23h 33m
Narrowbody jet (A320, 737)780 km/h16h 18m16h 44m
Widebody jet (777, 787, A350)900 km/h14h 08m14h 33m
Private jet (Gulfstream)850 km/h14h 58m15h 23m

Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Both airports

LAXKTM
AirportLos Angeles International AirportTribhuvan International Airport
CityLos AngelesKathmandu
CountryUnited StatesNepal
ICAOKLAXVNKT
Coordinates33.9425, -118.40827.6966, 85.3591
Elevation125 ft4,390 ft

Every figure on this plate is geometry. The shape of the earth is knowable; the airline's schedule is not.

Questions this plate answers

How long is the flight from Los Angeles to Kathmandu?

A non-stop flight from Los Angeles (LAX) to Kathmandu (KTM) takes about 16h 13m. The great-circle distance is 12,718 km (7,903 miles, 6,867 nautical miles), flying north-west on an initial bearing of 337°.

How far is Los Angeles from Kathmandu?

12,718 kilometres in a straight line over the earth's surface — 7,903 miles or 6,867 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.

Is there a non-stop flight between LAX and KTM?

This page calculates the direct-line time and distance; it does not track airline schedules. At 12,718 km the route is within reach of long-range widebodies, though not every city pair is served non-stop. Check an airline or booking site for what is actually scheduled.

What should I expect on a 16h 13m flight?

Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.

Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.

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Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.