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 2231
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 14
DL 2231 · ORD → SLC
departs 7:45 AM CT · arrives 10:15 AM MT
Forecast issued Mon 2:00 AM ET · 55h before departure
Watch this flight
Other days
Today 20%
Tue 10/13 11%
Wed 10/14
Thu 10/15 17%
Fri 10/16 14%
Sat 10/17 15%
Sun 10/18 19%
Odds over time
Arrive at SLC more than 15 minutes late?
18%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
8%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.4d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
18%
Yes 18%
No 82%
Leave ORD more than 15 minutes late?
Calm-weather odds: 6% · changed – in 24h
–
8%
Yes 8%
No 92%
Arrive at SLC more than an hour late?
Calm-weather odds: 2% · changed – in 24h
–
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SLC?
On time or early
81%
15–30 min late
6%
30 min–1 hour late
9%
1–2 hours late
2%
Over 2 hours late
1%
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 prone to delays
↑
This flight has been late 19% of the time recently
↓
Wednesdays in October are usually quieter than average
↓
Early flights usually leave on time
Weather at each end
ORD (origin)
Gusts 16 kt Ceiling 200 ft Visibility 3 mi Precip 0.26 in
SLC (destination)
Gusts 14 kt Ceiling 3,200 ft Visibility 10+ mi Precip 0.10 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.