UA 1398 · COS → ORD

departs 12:11 PM MT · arrives 3:56 PM CT

Forecast issued Wed 5:00 AM ET · 9h before departure

Arrive at ORD more than 15 minutes late?

64% chance · ±0 pts +16 pts · 24h

HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.

How late will it get to ORD?

On time or early
34%
15–30 min late
6%
30 min–1 hour late
10%
1–2 hours late
28%
Over 2 hours late
16%
Cancelled
6%

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

What’s moving the odds

↑ Cloud base down to 700 ft, 0.9 in of rain forecast at ORD that day

↑ Gusts to 38 kt, cloud base down to 1,300 ft, visibility down to 2 mi, 0.7 in of rain forecast at COS that day

↑ Arrivals into ORD at that hour are often late

↓ Wednesdays in September are usually quieter than average

↓ Other factors

Weather at each end

COS (origin) Gusts38 kt Ceiling1,300 ft Visibility2 mi Precip0.72 in

ORD (destination) Gusts20 kt Ceiling700 ft Visibility3 mi Precip0.90 in

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 1398 · COS → ORD

Odds over time

How late will it get to ORD?