Schedule: the flights that flew on Monday, Nov 9, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1503
SCHEDULED · TYPICAL SCHEDULE
Monday, November 16 Tomorrow
DL 1503 · GEG → SLC
departs 5:10 PM PT · arrives 7:55 PM MT
Forecast issued Sun 9:00 AM ET · 35h before departure
Watch this flight
Other days
Today 32%
Mon 11/16
Tue 11/17 24%
Wed 11/18 21%
Thu 11/19 21%
Sat 11/21 12%
Odds over time
Arrive at SLC more than 15 minutes late?
15%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
15%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 12% · changed +1 pt in 24h
+1 pt
15%
Yes 15%
No 85%
Leave GEG more than 15 minutes late?
Calm-weather odds: 11% · changed +1 pt in 24h
+1 pt
15%
Yes 15%
No 85%
Arrive at SLC more than an hour late?
Calm-weather odds: 3% · changed −1 pt in 24h
−1 pt
4%
Yes 4%
No 96%
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
84%
15–30 min late
7%
30 min–1 hour late
4%
1–2 hours late
3%
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
↑
Later flights pick up delays from earlier in the day
↑
DL's recent on-time record
↑
5pm departures from GEG are often late
↓
This flight has been late 15% of the time recently
↓
Mostly benign weather forecast at SLC
Weather at each end
GEG (origin)
Gusts 8 kt Ceiling 600 ft Visibility 3.33333 mi Precip 0.01 in
SLC (destination)
Gusts 16 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.