Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

DELTA · FLIGHT DL 391 SCHEDULED · TYPICAL SCHEDULE

Wednesday, September 30 Yesterday

DL 391 · ATL → RNO

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

Forecast issued Wed 10:00 PM ET · 2h after departure

Arrive at RNO more than 15 minutes late?

27% chance · ±2 pts +1 pt · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

How late will it get to RNO?

On time or early
72%
15–30 min late
13%
30 min–1 hour late
9%
1–2 hours late
4%
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

↑ 7pm departures from ATL are often late

↑ This flight has been late 29% of the time recently

↑ Later flights pick up delays from earlier in the day

↓ Wednesdays in September are usually quieter than average

↓ Mostly benign weather forecast at RNO

Weather at each end

ATL (origin) Gusts9 kt Ceiling200 ft Visibility0.5 mi Precipnone

RNO (destination) Gusts5 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?