Schedule: the flights that flew on Wednesday, Oct 7, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1247
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 14
DL 1247 · ORD → ATL
departs 6:35 AM CT · arrives 9:37 AM ET
Forecast issued Mon 2:00 AM ET · 54h before departure
Watch this flight
Other days
Today 7%
Tue 10/13 6%
Wed 10/14
Thu 10/15 12%
Fri 10/16 10%
Sat 10/17 8%
Sun 10/18 14%
Odds over time
Arrive at ATL more than 15 minutes late?
14%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
14%
Leave 15+ late
7%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.3d
Now
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 5% · changed – in 24h
–
14%
Yes 14%
No 86%
Leave ORD more than 15 minutes late?
Calm-weather odds: 5% · changed – in 24h
–
7%
Yes 7%
No 93%
Arrive at ATL more than an hour late?
Calm-weather odds: 2% · changed – in 24h
–
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to ATL?
On time or early
85%
15–30 min late
4%
30 min–1 hour late
6%
1–2 hours late
2%
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
↑
Cloud base down to 200 ft, 0.3 in of rain forecast at ORD that day
↑
ORD is busy at that time
↑
6am departures from ORD are often late
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at ATL
Weather at each end
ORD (origin)
Gusts 16 kt Ceiling 200 ft Visibility 3 mi Precip 0.26 in
ATL (destination)
Gusts 5 kt Ceiling none (clear) Visibility 9 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.