Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 2453
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
DL 2453 · GRR → ATL
departs 6:10 AM ET · arrives 8:14 AM ET
Forecast issued Fri 1:00 AM ET · 5h before departure
Watch this flight
Other days
Today
Sat 10/3 7%
Sun 10/4 5%
Mon 10/5 5%
Tue 10/6 4%
Wed 10/7 4%
Thu 10/8 3%
Odds over time
Arrive at ATL more than 15 minutes late?
11%
chance · ±0 pts
+8 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
11%
Leave 15+ late
13%
Arrive 1h+ late
3%
Cancelled
9%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.3d
2d
1d
12h
Now
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 3% · changed +8 pts in 24h
+8 pts
11%
Yes 11%
No 89%
Leave GRR more than 15 minutes late?
Calm-weather odds: 5% · changed +8 pts in 24h
+8 pts
13%
Yes 13%
No 87%
Arrive at ATL more than an hour late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +8 pts in 24h
+8 pts
9%
Yes 9%
No 91%
How late will it get to ATL?
On time or early
81%
15–30 min late
8%
30 min–1 hour late
0%
1–2 hours late
1%
Over 2 hours late
2%
Cancelled
9%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 629 ft, 0.3 in of rain forecast at GRR that day
↓
Early flights usually leave on time
↓
GRR usually runs smoothly
Weather at each end
GRR (origin)
Gusts 16 kt Ceiling 1,100 ft Visibility 5 mi Precip 0.18 in
ATL (destination)
Gusts 8 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.02 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.