Schedule: the flights that flew on Thursday, Oct 22, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1440
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 29
DL 1440 · GEG → SLC
departs 5:54 AM PT · arrives 8:42 AM MT
Forecast issued Tue 4:00 AM ET · 53h before departure
Watch this flight
Other days
Today 5%
Wed 10/28 4%
Thu 10/29
Fri 10/30 7%
Sat 10/31 6%
Sun 11/1 8%
Mon 11/2 8%
Odds over time
Arrive at SLC more than 15 minutes late?
9%
chance · ±1 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
9%
Leave 15+ late
4%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.4d
Now
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 4% · changed – in 24h
–
9%
Yes 9%
No 91%
Leave GEG more than 15 minutes late?
Calm-weather odds: 3% · changed – in 24h
–
4%
Yes 4%
No 96%
Arrive at SLC 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 99%
How late will it get to SLC?
On time or early
90%
15–30 min late
7%
30 min–1 hour late
0%
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
↑
Cloud base down to 1,400 ft, visibility down to 2 mi forecast at GEG that day
↑
DL's recent on-time record
↓
Early flights usually leave on time
↓
5am departures from GEG are usually not late
Weather at each end
GEG (origin)
Gusts 9 kt Ceiling 1,400 ft Visibility 2 mi Precip 0.02 in
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.