Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 1290
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 1290 · ATL → TYS
departs 8:41 AM ET · arrives 9:38 AM ET
Forecast issued Thu 6:00 PM ET · 39h before departure
Watch this flight
Other days
Today 11%
Fri 10/2 8%
Sat 10/3
Sun 10/4 9%
Mon 10/5 7%
Tue 10/6 6%
Odds over time
Arrive at TYS more than 15 minutes late?
16%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
16%
Leave 15+ late
14%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.4d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at TYS more than 15 minutes late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
16%
Yes 16%
No 84%
Leave ATL more than 15 minutes late?
Calm-weather odds: 8% · changed +3 pts in 24h
+3 pts
14%
Yes 14%
No 86%
Arrive at TYS 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 TYS?
On time or early
83%
15–30 min late
2%
30 min–1 hour late
10%
1–2 hours late
2%
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
↑
Cloud base down to 300 ft, visibility down to 0.4 mi forecast at TYS that day
↑
0.4 in of rain forecast at ATL that day
↑
Other factors
↓
DL's recent on-time record
↓
Arrivals into TYS at that hour are usually not late
Weather at each end
ATL (origin)
Gusts 8 kt Ceiling 3,800 ft Visibility 4 mi Precip 0.43 in
TYS (destination)
Gusts 7 kt Ceiling 300 ft Visibility 0.4 mi Precip 0.12 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.