Singapore AirlinesSQ100% on time
Flights SQ441 06:15 daily
live
Direct flights from Kathmandu (KTM) to Singapore (SIN): 7 nonstop departures observed each week across 1 airline. 100% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 20 minutes early. No cancellations were recorded across the 6 tracked flights. The nonstop covers 3,538 km, an estimated 5 hours 2 minutes in the air. Measured by Pro Flight Search from live flight boards at Kathmandu and Singapore. Updated 21 September 2026 at 01:08 UTC.
KTM
Kathmandu
tracking
SIN
Singapore
smooth · +0
3,538 km · ~5h 02m est.
Runs reliable · 1 airline · 7x weekly · nonstop
100% on time
of the last 6 operated KTM → SIN flights arrived within 15 minutes
Median arrival delay is −20 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−20 minacross the last 6 operated legs
Flight time~5h 02mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Singapore Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Kathmandu to Singapore route actually runs
Pro Flight Search records official board updates for nonstop KTM to SIN flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Kathmandu (KTM) to Singapore (SIN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/KTM-SIN
KTM to SIN questions
Is KTM–SIN running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from KTM to SIN?
Great-circle distance is 3,538 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 280–333 min gate-to-gate on this route.
How often does KTM–SIN fly?
Singapore Airlines runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at KTM and arrival-side delay at SIN, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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