Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 1451
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29
DL 1451 · PHX → SLC
departs 7:20 PM MT · arrives 9:59 PM MT
Forecast issued Tue 10:00 PM ET · 0h before departure
Watch this flight
Other days
Tue 9/29
Today 26%
Fri 10/2 15%
Sun 10/4 15%
Mon 10/5 19%
Tue 10/6 11%
Wed 10/7 10%
Odds over time
Arrive at SLC more than 15 minutes late?
33%
chance · ±2 pts
+11 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
33%
Leave 15+ late
31%
Arrive 1h+ late
8%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 30% · changed +11 pts in 24h
+11 pts
33%
Yes 33%
No 67%
Leave PHX more than 15 minutes late?
Calm-weather odds: 24% · changed +3 pts in 24h
+3 pts
31%
Yes 31%
No 69%
Arrive at SLC more than an hour late?
Calm-weather odds: 8% · changed +0 pts in 24h
+0 pts
8%
Yes 8%
No 92%
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
67%
15–30 min late
16%
30 min–1 hour late
8%
1–2 hours late
4%
Over 2 hours late
4%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,300 ft, visibility down to 0.5 mi, 0.3 in of rain, thunderstorms forecast at PHX that day
↑
7pm departures from PHX are often late
↑
Later flights pick up delays from earlier in the day
↓
Tuesdays in September are usually quieter than average
↓
This flight has been late 12% of the time recently
Weather at each end
PHX (origin)
Gusts 21 kt Ceiling 1,300 ft Visibility 0.5 mi Precip 0.34 in
SLC (destination)
Gusts 15 kt Ceiling 6,500 ft 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.