DL 409 · ONT → ATL

departs 7:01 AM PT · arrives 2:17 PM ET

Forecast issued Sun 11:00 PM ET · 11h before departure

Arrive at ATL more than 15 minutes late?

12% chance · ±0 pts +6 pts · 24h

HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.

How late will it get to ATL?

On time or early
87%
15–30 min late
8%
30 min–1 hour late
0%
1–2 hours late
2%
Over 2 hours late
2%
Cancelled
2%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ 0.3 in of rain forecast at ONT that day

↑ ATL is busy at that time

↓ Early flights usually leave on time

↓ 7am departures from ONT are usually not late

Weather at each end

ONT (origin) Gusts22 kt Ceiling2,200 ft Visibility6 mi Precip0.30 in

ATL (destination) Gusts18 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 409 · ONT → ATL

Odds over time

How late will it get to ATL?