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 1331
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
DL 1331 · SFO → SLC
departs 5:50 AM PT · arrives 8:40 AM MT
Forecast issued Fri 11:00 AM ET · 2h after departure
Watch this flight
Other days
Today
Sat 10/3 3%
Sun 10/4 4%
Mon 10/5 4%
Tue 10/6 3%
Wed 10/7 3%
Thu 10/8 3%
Odds over time
Arrive at SLC more than 15 minutes late?
4%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
4%
Leave 15+ late
4%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
3.5d
2d
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Leave SFO more than 15 minutes late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
4%
Yes 4%
No 96%
Arrive at SLC more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
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
96%
15–30 min late
<1%
30 min–1 hour late
1%
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
↑
Other factors
↓
Early flights usually leave on time
↓
5am departures from SFO are usually not late
Weather at each end
SFO (origin)
Gusts 9 kt Ceiling 300 ft Visibility 6 mi Precip none
SLC (destination)
Gusts 12 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.