Is IAH–UBN running on time right now?
High disruption likely. The departure side at IAH is the weaker end, route health score 0/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Houston (IAH) to Ulaanbaatar (UBN) run nonstop between the two airports. The nonstop covers 11,102 km, an estimated 14 hours 44 minutes in the air.
IAH
Houston
disrupted · +99
UBN
Ulaanbaatar
tracking
11,102 km · ~14h 44m est.
Disrupted · 0 airlines · nonstop
0 / 100
route health from live IAH and UBN delay boards
Flight time~14h 44mestimated from route distance
Airports right now
live boardsnext sweep in 120s
How the Houston to Ulaanbaatar route actually runs
Pro Flight Search records official board updates for nonstop IAH to UBN 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
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Suggested citation
Pro Flight Search — Houston (IAH) to Ulaanbaatar (UBN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IAH-UBN
IAH to UBN questions
How long is the flight from IAH to UBN?
Great-circle distance is 11,102 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 814–982 min gate-to-gate on this route.
What does the route health score measure?
A blend of departure-side delay at IAH and arrival-side delay at UBN, 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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