Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1504
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5
DL 1504 · PIT → ATL
departs 5:45 AM ET · arrives 7:25 AM ET
Forecast issued Fri 12:00 PM ET · 66h before departure
Watch this flight
Other days
Today 5%
Sat 10/3 6%
Sun 10/4 7%
Mon 10/5
Tue 10/6 5%
Wed 10/7 4%
Thu 10/8 5%
Odds over time
Arrive at ATL more than 15 minutes late?
6%
chance · ±1 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
6%
Leave 15+ late
4%
Arrive 1h+ late
3%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
6.2d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 3% · changed +2 pts in 24h
+2 pts
6%
Yes 6%
No 94%
Leave PIT more than 15 minutes late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
Arrive at ATL more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
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
93%
15–30 min late
3%
30 min–1 hour late
<1%
1–2 hours late
<1%
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 300 ft, visibility down to 2 mi, 0.8 in of rain forecast at ATL that day
↑
Other factors
↓
Early flights usually leave on time
↓
5am departures from PIT are usually not late
Weather at each end
PIT (origin)
Gusts 14 kt Ceiling 2,200 ft Visibility 9 mi Precip none
ATL (destination)
Gusts 12 kt Ceiling 300 ft Visibility 2 mi Precip 0.75 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.