Schedule: the flights that flew on Saturday, Oct 24, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 2173 SCHEDULED · TYPICAL SCHEDULE

Saturday, October 31

UA 2173 · BOI → DEN

departs 2:40 PM MT · arrives 4:39 PM MT

Forecast issued Thu 2:00 AM ET · 63h before departure

Arrive at DEN more than 15 minutes late?

17% chance · ±4 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
82%
15–30 min late
7%
30 min–1 hour late
5%
1–2 hours late
3%
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

↑ Later flights pick up delays from earlier in the day

↓ Mostly benign weather forecast at DEN

↓ BOI usually runs smoothly

Weather at each end

BOI (origin) Gusts10 kt Ceiling2,300 ft Visibility6.66667 mi Precip0.09 in

DEN (destination) Gusts11 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 2173 · BOI → DEN

Odds over time

How late will it get to DEN?