UL455SriLankanIn the air, 143 min late
Left NRT at 13:43, 143 min after its 11:20 slot.
Track UL455 →
live
Direct flights from Tokyo (NRT) to Colombo (CMB): 4 nonstop departures observed each week across 1 airline. No cancellations were recorded across the 5 tracked flights. The nonstop covers 6,894 km, an estimated 9 hours 20 minutes in the air. Measured by Pro Flight Search from live flight boards at Tokyo and Colombo. Updated 31 October 2026 at 07:20 UTC.
Today, NRT → CMB
Sat 31 Oct · local times- 11:20 UL455SriLankan Left 13:43 +143 ·
Checked NRT board 16:20
NRT
Tokyo
smooth · +14
CMB
Colombo
tracking
6,894 km · ~9h 20m est.
Running clean · 1 airline · 4x weekly · nonstop
82 / 100
route health from live NRT and CMB delay boards
0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Flight time~9h 20mestimated from route distance
Weekly departures4x1 direct airline on the leg
Who flies it
observed on the boards · 7 daysSriLankan AirlinesUL
Flights UL455 varies Tu Th Sa Su
History
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 Tokyo to Colombo route actually runs
Pro Flight Search records official board updates for nonstop NRT to CMB 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: Tokyo (NRT) to Colombo (CMB) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/NRT-CMB
NRT to CMB questions
Is NRT–CMB running on time right now?
Smooth skies ahead. The departure side at NRT is the weaker end, route health score 82/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from NRT to CMB?
Great-circle distance is 6,894 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 517–621 min gate-to-gate on this route.
How often does NRT–CMB fly?
SriLankan Airlines runs the route with about 4 flights a week (sun, tue, thu, sat). 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 NRT and arrival-side delay at CMB, 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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