Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 3157
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 3157 · MSY → ATL
departs 3:22 PM CT · arrives 6:01 PM ET
Forecast issued Thu 6:00 AM ET · 58h before departure
Watch this flight
Other days
Today 31%
Fri 10/2 28%
Sat 10/3
Sun 10/4 21%
Mon 10/5 17%
Tue 10/6 16%
Wed 10/7 14%
Odds over time
Arrive at ATL more than 15 minutes late?
42%
chance · ±5 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
42%
Leave 15+ late
28%
Arrive 1h+ late
9%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.8d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 9% · changed – in 24h
–
42%
Yes 42%
No 58%
Leave MSY more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
28%
Yes 28%
No 72%
Arrive at ATL more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
2%
Yes 2%
No 98%
How late will it get to ATL?
On time or early
57%
15–30 min late
20%
30 min–1 hour late
13%
1–2 hours late
7%
Over 2 hours late
2%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 900 ft, 1.1 in of rain forecast at MSY that day
↑
0.4 in of rain forecast at ATL that day
↑
Arrivals into ATL at that hour are often late
↓
DL's recent on-time record
↓
Saturdays in October are usually quieter than average
Weather at each end
MSY (origin)
Gusts 13 kt Ceiling 900 ft Visibility 3 mi Precip 1.12 in
ATL (destination)
Gusts 8 kt Ceiling 3,800 ft Visibility 4 mi Precip 0.40 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.