Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 2144 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Tomorrow

UA 2144 · ORD → STL

departs 7:58 PM CT · arrives 9:29 PM CT

Forecast issued Sat 11:00 AM ET · 34h before departure

Arrive at STL more than 15 minutes late?

24% chance · ±2 pts +5 pts · 24h

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

How late will it get to STL?

On time or early
75%
15–30 min late
7%
30 min–1 hour late
11%
1–2 hours late
4%
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

↑ 7pm departures from ORD are often late

↑ Later flights pick up delays from earlier in the day

↑ This flight has been late 33% of the time recently

↓ Mostly benign weather forecast at ORD

↓ Mostly benign weather forecast at STL

Weather at each end

ORD (origin) Gusts12 kt Ceilingnone (clear) Visibility10+ mi Precipnone

STL (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 2144 · ORD → STL

Odds over time

How late will it get to STL?