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 1389
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 1389 · IAH → DTW
departs 5:30 AM CT · arrives 9:18 AM ET
Forecast issued Thu 3:00 AM ET · 52h before departure
Watch this flight
Other days
Today 11%
Fri 10/2 7%
Sat 10/3
Sun 10/4 6%
Mon 10/5 6%
Tue 10/6 4%
Wed 10/7 4%
Odds over time
Arrive at DTW more than 15 minutes late?
6%
chance · ±0 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
6%
Leave 15+ late
8%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
4.4d
Now
1d
12h
6h
Departs
Lands
Arrive at DTW more than 15 minutes late?
Calm-weather odds: 5% · changed – in 24h
–
6%
Yes 6%
No 94%
Leave IAH more than 15 minutes late?
Calm-weather odds: 6% · changed – in 24h
–
8%
Yes 8%
No 92%
Arrive at DTW more than an hour late?
Calm-weather odds: 2% · changed – in 24h
–
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to DTW?
On time or early
93%
15–30 min late
<1%
30 min–1 hour late
3%
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
↑
IAH is prone to delays
↑
Other factors
↓
Early flights usually leave on time
↓
5am departures from IAH are usually not late
Weather at each end
IAH (origin)
Gusts 12 kt Ceiling 3,400 ft Visibility 10+ mi Precip 0.65 in
DTW (destination)
Gusts 10 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.