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 1177
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 1177 · SLC → SAN
departs 7:45 AM MT · arrives 8:41 AM PT
Forecast issued Thu 6:00 AM ET · 52h before departure
Watch this flight
Other days
Today 13%
Fri 10/2 10%
Sat 10/3
Sun 10/4 13%
Mon 10/5 9%
Tue 10/6 8%
Wed 10/7 8%
Odds over time
Arrive at SAN more than 15 minutes late?
8%
chance · ±1 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
8%
Leave 15+ late
9%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.5d
Now
1d
12h
6h
Departs
Lands
Arrive at SAN more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
8%
Yes 8%
No 92%
Leave SLC more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
9%
Yes 9%
No 91%
Arrive at SAN more than an hour late?
Calm-weather odds: 2% · changed – in 24h
–
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 100%
How late will it get to SAN?
On time or early
91%
15–30 min late
3%
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
↑
SAN is prone to delays
↑
Other factors
↑
Saturdays in October are usually busier than average
↓
Mostly benign weather forecast at SLC
↓
DL's recent on-time record
Weather at each end
SLC (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
SAN (destination)
Gusts 15 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.