Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

UNITED · FLIGHT UA 2155 SCHEDULED · TYPICAL SCHEDULE

Saturday, October 3

UA 2155 · IDA → DEN

departs 2:30 PM MT · arrives 4:18 PM MT

Forecast issued Thu 1:00 PM ET · 52h before departure

Arrive at DEN more than 15 minutes late?

15% chance · ±2 pts – · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to DEN?

On time or early
85%
15–30 min late
5%
30 min–1 hour late
3%
1–2 hours late
5%
Over 2 hours late
2%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ Arrivals into DEN at that hour are often late

↑ This flight has been late 24% of the time recently

↑ DEN is busy at that time

↓ Mostly benign weather forecast at IDA

↓ Mostly benign weather forecast at DEN

Weather at each end

IDA (origin) Gusts13 kt Ceilingnone (clear) Visibility10+ mi Precipnone

DEN (destination) Gusts24 kt Ceilingnone (clear) Visibility10+ mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

UA 2155 · IDA → DEN

Odds over time

How late will it get to DEN?