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 1583
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
DL 1583 · IAH → SLC
departs 7:35 AM CT · arrives 9:48 AM MT
Forecast issued Fri 1:00 PM ET · 20h before departure
Watch this flight
Other days
Today 20%
Sat 10/3
Sun 10/4 16%
Mon 10/5 13%
Tue 10/6 8%
Wed 10/7 7%
Thu 10/8 9%
Odds over time
Arrive at SLC more than 15 minutes late?
13%
chance · ±1 pts
−3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
13%
Leave 15+ late
12%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.4d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 10% · changed −3 pts in 24h
−3 pts
13%
Yes 13%
No 87%
Leave IAH more than 15 minutes late?
Calm-weather odds: 10% · changed −2 pts in 24h
−2 pts
12%
Yes 12%
No 88%
Arrive at SLC more than an hour late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SLC?
On time or early
86%
15–30 min late
5%
30 min–1 hour late
3%
1–2 hours late
3%
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
↑
SLC is prone to delays
↓
DL's recent on-time record
↓
Mostly benign weather forecast at SLC
Weather at each end
IAH (origin)
Gusts 15 kt Ceiling 1,300 ft Visibility 10+ mi Precip 0.21 in
SLC (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.