5A1531 Miles CityMLS BillingsBIL · 18:35
5A1531 by Alpine Air Express flies from Miles City (MLS) to Billings (BIL).
scheduled from MLS
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −10 min · 0 cancelled · 8 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How 5A1531 actually runs
Pro Flight Search has tracked every published board update for 5A1531 across the MLS and BIL boards: schedule changes, gate pushes and actual clocks. Usually lands ~10 min early. Based on 8 confirmed landings · 8/8 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how 5A1531 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as MLS and BIL published them.
Planning around 5A1531? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — 5A1531 Miles City to Billings on-time performance, measured from the MLS and BIL airport boards.
https://proflightsearch.com/flight/5A1531
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