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 391 SCHEDULED · TYPICAL SCHEDULE

Saturday, October 3

DL 391 · ATL → RNO

departs 7:57 PM ET · arrives 9:42 PM PT

Forecast issued Thu 6:00 AM ET · 62h before departure

Arrive at RNO more than 15 minutes late?

31% chance · ±7 pts – · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to RNO?

On time or early
68%
15–30 min late
10%
30 min–1 hour late
11%
1–2 hours late
7%
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

↑ 0.4 in of rain forecast at ATL that day

↑ 7pm departures from ATL are often late

↑ This flight has been late 28% of the time recently

↓ DL's recent on-time record

↓ Mostly benign weather forecast at RNO

Weather at each end

ATL (origin) Gusts8 kt Ceiling3,800 ft Visibility4 mi Precip0.40 in

RNO (destination) Gusts13 kt Ceilingnone (clear) Visibility10+ mi Precipnone

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.

DL 391 · ATL → RNO

Odds over time

How late will it get to RNO?