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.
DELTA · FLIGHT DL 1147
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 31
DL 1147 · ORD → ATL
departs 10:50 AM CT · arrives 1:47 PM ET
Forecast issued Wed 5:00 PM ET · 67h before departure
Watch this flight
Other days
Today 8%
Thu 10/29 11%
Fri 10/30 10%
Sat 10/31
Sun 11/1 17%
Mon 11/2 13%
Tue 11/3 13%
Odds over time
Arrive at ATL more than 15 minutes late?
33%
chance · ±3 pts
+7 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
33%
Leave 15+ late
25%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.5d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 13% · changed +7 pts in 24h
+7 pts
33%
Yes 33%
No 67%
Leave ORD more than 15 minutes late?
Calm-weather odds: 14% · changed +6 pts in 24h
+6 pts
25%
Yes 25%
No 75%
Arrive at ATL more than an hour late?
Calm-weather odds: 3% · changed +3 pts in 24h
+3 pts
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to ATL?
On time or early
67%
15–30 min late
14%
30 min–1 hour late
11%
1–2 hours late
4%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
0.3 in of rain forecast at ORD that day
↑
10am departures from ORD are often late
↑
Other factors
↓
ATL usually runs smoothly
↓
Early flights usually leave on time
Weather at each end
ORD (origin)
Gusts 10 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.29 in
ATL (destination)
Gusts 22 kt Ceiling 3,900 ft Visibility 10+ mi Precip none
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.