Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 1254
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
DL 1254 · SJC → SLC
departs 1:40 PM PT · arrives 4:33 PM MT
Forecast issued Wed 6:00 AM ET · 35h before departure
Watch this flight
Other days
Today 8%
Thu 10/1
Fri 10/2 11%
Sat 10/3 8%
Sun 10/4 10%
Mon 10/5 9%
Tue 10/6 6%
Odds over time
Arrive at SLC more than 15 minutes late?
8%
chance · ±1 pts
−1 pt · 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
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
2.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 8% · changed −1 pt in 24h
−1 pt
8%
Yes 8%
No 92%
Leave SJC more than 15 minutes late?
Calm-weather odds: 9% · changed −1 pt in 24h
−1 pt
9%
Yes 9%
No 91%
Arrive at SLC more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
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
91%
15–30 min late
2%
30 min–1 hour late
2%
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
↑
Other factors
↑
SJC is prone to delays
↑
Early flights usually leave on time
↓
This flight has been late 8% of the time recently
↓
Mostly benign weather forecast at SLC
Weather at each end
SJC (origin)
Gusts 11 kt Ceiling 1,100 ft Visibility 6 mi Precip none
SLC (destination)
Gusts 11 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.