Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 2131
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
DL 2131 · ATL → PHL
departs 1:00 PM ET · arrives 3:02 PM ET
Forecast issued Tue 7:00 PM ET · 42h before departure
Watch this flight
Other days
Today 14%
Wed 9/30 11%
Thu 10/1
Fri 10/2 20%
Sat 10/3 13%
Sun 10/4 19%
Mon 10/5 16%
Odds over time
Arrive at PHL more than 15 minutes late?
13%
chance · ±2 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
13%
Leave 15+ late
13%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at PHL more than 15 minutes late?
Calm-weather odds: 12% · changed −2 pts in 24h
−2 pts
13%
Yes 13%
No 87%
Leave ATL more than 15 minutes late?
Calm-weather odds: 12% · changed +1 pt in 24h
+1 pt
13%
Yes 13%
No 87%
Arrive at PHL 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 PHL?
On time or early
86%
15–30 min late
6%
30 min–1 hour late
5%
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
↑
This flight has been late 27% of the time recently
↑
1pm departures from ATL are often late
↑
ATL is busy at that time
↓
Mostly benign weather forecast at ATL
↓
ATL usually runs smoothly
Weather at each end
ATL (origin)
Gusts 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
PHL (destination)
Gusts 11 kt Ceiling 10,000 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.