Schedule: the flights that flew on Tuesday, Oct 6, 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
Tuesday, October 13 Tomorrow
DL 1503 · GEG → SLC
departs 5:10 PM PT · arrives 7:55 PM MT
Forecast issued Mon 1:00 AM ET · 43h before departure
Watch this flight
Other days
Today 22%
Tue 10/13
Wed 10/14 11%
Thu 10/15 11%
Fri 10/16 14%
Sat 10/17 11%
Sun 10/18 15%
Odds over time
Arrive at SLC more than 15 minutes late?
11%
chance · ±2 pts
−4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
11%
Leave 15+ late
11%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.8d
Now
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 8% · changed −4 pts in 24h
−4 pts
11%
Yes 11%
No 89%
Leave GEG more than 15 minutes late?
Calm-weather odds: 8% · changed +1 pt in 24h
+1 pt
11%
Yes 11%
No 89%
Arrive at SLC more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
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
88%
15–30 min late
4%
30 min–1 hour late
5%
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 800 ft, 0.7 in of rain forecast at SLC that day
↑
Later flights pick up delays from earlier in the day
↓
Tuesdays in October are usually quieter than average
↓
Mostly benign weather forecast at GEG
Weather at each end
GEG (origin)
Gusts 6 kt Ceiling none (clear) Visibility 10+ mi Precip none
SLC (destination)
Gusts 17 kt Ceiling 1,700 ft Visibility 4 mi Precip 0.67 in
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.