Miat - MongolianOM
Flights OM501 13:40 Su
live
Direct flights from Ulaanbaatar (ULN) to Tokyo (NRT): 1 nonstop departure observed each week across 1 airline. The median arrival is 13 minutes early. No cancellations were recorded across the 1 tracked flight. The nonstop covers 3,061 km, an estimated 4 hours 25 minutes in the air. Measured by Pro Flight Search from live flight boards at Ulaanbaatar and Tokyo. Updated 16 August 2026 at 04:53 UTC.
ULN
Ulaanbaatar
tracking
NRT
Tokyo
smooth · +0
3,061 km · ~4h 25m est.
Running clean · 1 airline · 1x weekly · nonstop
100 / 100
route health from live ULN and NRT delay boards
Median arrival delay is −13 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival−13 minacross the last 1 operated legs
Flight time~4h 25mestimated from route distance
Weekly departures1x1 direct airline on the leg
Current nonstop fares
ULN → NRT · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Miat - Mongolian
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 Ulaanbaatar to Tokyo route actually runs
Pro Flight Search tracks every published board update for nonstop ULN to NRT flights: 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. Fares link straight to the operating airline with no markups.
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 — Ulaanbaatar (ULN) to Tokyo (NRT) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ULN-NRT
ULN to NRT questions
Is ULN–NRT 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 ULN to NRT?
Great-circle distance is 3,061 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 246–292 min gate-to-gate on this route.
How often does ULN–NRT fly?
Miat - Mongolian runs the route with about 1 flight a week (sun). 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 ULN and arrival-side delay at NRT, 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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