Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
REPUBLIC · FLIGHT YX 4511
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
YX 4511 · ORD → CHA
departs 9:49 PM CT · arrives 12:43 AM ET
Forecast issued Fri 7:00 AM ET · 40h before departure
Watch this flight
Other days
Today 22%
Sat 10/3
Sun 10/4 22%
Mon 10/5 16%
Tue 10/6 22%
Wed 10/7 20%
Odds over time
Arrive at CHA more than 15 minutes late?
15%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
19%
Arrive 1h+ late
6%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.0d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at CHA more than 15 minutes late?
Calm-weather odds: 15% · changed +0 pts in 24h
+0 pts
15%
Yes 15%
No 85%
Leave ORD more than 15 minutes late?
Calm-weather odds: 16% · changed +0 pts in 24h
+0 pts
19%
Yes 19%
No 81%
Arrive at CHA more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to CHA?
On time or early
84%
15–30 min late
6%
30 min–1 hour late
3%
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
↑
9pm departures from ORD are often late
↑
This flight has been late 31% of the time recently
↑
Cloud base down to 200 ft, visibility down to 0.2 mi forecast at CHA that day
↓
Mostly benign weather forecast at ORD
↓
YX's recent on-time record
Weather at each end
ORD (origin)
Gusts 8 kt
Ceiling none (clear)
Visibility 10+ mi
Precip none
CHA (destination)
Gusts 8 kt
Ceiling 200 ft
Visibility 0.5 mi
Precip 0.23 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.