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 1665
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 1665 · DTW → ORD
departs 8:00 PM ET · arrives 8:31 PM CT
Forecast issued Thu 9:00 PM ET · 47h before departure
Watch this flight
Other days
Today 78%
Fri 10/2 41%
Sat 10/3
Sun 10/4 43%
Mon 10/5 35%
Tue 10/6 38%
Wed 10/7 30%
Odds over time
Arrive at ORD more than 15 minutes late?
22%
chance · ±2 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
22%
Leave 15+ late
16%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.9d
Now
1d
12h
6h
Departs
Lands
Arrive at ORD more than 15 minutes late?
Calm-weather odds: 22% · changed −1 pt in 24h
−1 pt
22%
Yes 22%
No 78%
Leave DTW more than 15 minutes late?
Calm-weather odds: 16% · changed −1 pt in 24h
−1 pt
16%
Yes 16%
No 84%
Arrive at ORD more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to ORD?
On time or early
77%
15–30 min late
9%
30 min–1 hour late
10%
1–2 hours late
2%
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
↑
Arrivals into ORD at that hour are often late
↑
This flight has been late 33% of the time recently
↑
8pm departures from DTW are often late
↓
Mostly benign weather forecast at ORD
↓
DL's recent on-time record
Weather at each end
DTW (origin)
Gusts 9 kt Ceiling none (clear) Visibility 9 mi Precip none
ORD (destination)
Gusts 8 kt Ceiling none (clear) 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.