PEK → UBNBeijing to Ulaanbaatar

live

Direct flights from Beijing (PEK) to Ulaanbaatar (UBN): 18 nonstop departures observed each week across 2 airlines. 1 of the 21 tracked flights was cancelled. The nonstop covers 1,149 km, an estimated 1 hour 58 minutes in the air. Measured by Pro Flight Search from live flight boards at Beijing and Ulaanbaatar. Updated 29 October 2026 at 22:38 UTC.

Today, PEK → UBN

Fri 30 Oct · local times
  1. 08:25 CA901 On scheduleGate E20 · T3 ·
  2. 13:00 CA955 On scheduleGate E22 · T3 ·
  3. 20:45 OM224 Sched 20:45Departure not confirmed by the board ·

Checked PEK board 06:38

PEK Beijing busy · +18
UBN Ulaanbaatar tracking
1,149 km · ~1h 58m est.
dep bank 08:45–21:1018x weekly
Running clean · 2 airlines · 18x weekly · nonstop
76 / 100

route health from live PEK and UBN delay boards

1 of 21 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Flight time~1h 58mestimated from route distance
Weekly departures18x2 direct airlines on the leg
Cancelled4.8%recent route rate · 1 of 21

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Air ChinaMIAT Mongolian 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 days
Air ChinaCA

Flights CA901 varies daily · CA955 13:00 Mo We Fr Su

MIAT Mongolian AirlinesOM

Flights OM224 varies daily

History

operated legs · board outcomes
10-29CA901departed+34
10-29OM224departed+18
10-28CA901departed+13
10-28CA955departed+27
10-28OM224departed+16
10-27CA901departed+14
10-27OM224departed+298
10-26CA901departed+10
10-26CA955departed+20
10-26OM224departed+20
10-25CA901departed+12
10-25CA955departed+14
10-25OM224departed+16
10-24CA901departed+17
10-24OM224departed+3
10-23CA901departed+14
10-23CA955departed+66
10-23OM224departed+18
10-22CA901departed+13
10-22OM224departed+11
10-22OM228cancelledCNX

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
PEKBeijing +18 min busy 🌤 clear · N 0 kt Full PEK delay board →
UBNUlaanbaatar tracking Full UBN delay board →

How the Beijing to Ulaanbaatar route actually runs

Pro Flight Search records official board updates for nonstop PEK 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

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: Beijing (PEK) to Ulaanbaatar (UBN) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/PEK-UBN
How we measure this →

PEK to UBN questions

Is PEK–UBN running on time right now?

Mostly on schedule. The departure side at PEK is the weaker end, route health score 76/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from PEK to UBN?

Great-circle distance is 1,149 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 111–128 min gate-to-gate on this route.

How often does PEK–UBN fly?

2 carriers operate this route, around 18 flights a week between them. Compare carrier days and times in the airline list above.

What does the route health score measure?

A blend of departure-side delay at PEK 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.