Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 2547
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
DL 2547 · GRR → ATL
departs 2:00 PM ET · arrives 4:08 PM ET
Forecast issued Fri 1:00 PM ET · 25h before departure
Watch this flight
Other days
Today 7%
Sat 10/3
Sun 10/4 14%
Mon 10/5 6%
Tue 10/6 7%
Wed 10/7 8%
Thu 10/8 6%
Odds over time
Arrive at ATL more than 15 minutes late?
9%
chance · ±1 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
9%
Leave 15+ late
12%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.7d
2d
Now
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
9%
Yes 9%
No 91%
Leave GRR more than 15 minutes late?
Calm-weather odds: 8% · changed −1 pt in 24h
−1 pt
12%
Yes 12%
No 88%
Arrive at ATL more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
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
91%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
1%
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 900 ft forecast at ATL that day
↑
Arrivals into ATL at that hour are often late
↓
DL's recent on-time record
↓
ATL usually runs smoothly
Weather at each end
GRR (origin)
Gusts 12 kt Ceiling none (clear) Visibility 9 mi Precip none
ATL (destination)
Gusts 8 kt Ceiling 700 ft Visibility 5 mi Precip 0.12 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.