Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1843
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
DL 1843 · ATL → GEG
departs 7:45 PM ET · arrives 9:32 PM PT
Forecast issued Wed 10:00 PM ET · 2h after departure
Watch this flight
Other days
Wed 9/30
Today 45%
Mon 10/5 15%
Thu 10/8 14%
Fri 10/9 18%
Odds over time
Arrive at GEG more than 15 minutes late?
20%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
20%
Leave 15+ late
15%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
2d
1d
12h
6h
Departs
Now
Lands
Arrive at GEG more than 15 minutes late?
Calm-weather odds: 20% · changed +1 pt in 24h
+1 pt
20%
Yes 20%
No 80%
Leave ATL more than 15 minutes late?
Calm-weather odds: 15% · changed +1 pt in 24h
+1 pt
15%
Yes 15%
No 85%
Arrive at GEG more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
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 GEG?
On time or early
79%
15–30 min late
10%
30 min–1 hour late
5%
1–2 hours late
4%
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
↑
Later flights pick up delays from earlier in the day
↑
7pm departures from ATL are often late
↑
ATL is busy at that time
↓
Wednesdays in September are usually quieter than average
↓
Cloud base down to 200 ft, visibility down to 0.5 mi forecast at ATL that day
Weather at each end
ATL (origin)
Gusts 9 kt Ceiling 200 ft Visibility 0.5 mi Precip none
GEG (destination)
Gusts 15 kt Ceiling 5,000 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.