Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

DELTA · FLIGHT DL 517 SCHEDULED · TYPICAL SCHEDULE

Tuesday, September 29 Yesterday

DL 517 · ATL → SFO

departs 6:08 PM ET · arrives 8:05 PM PT

Forecast issued Tue 10:00 PM ET · 4h after departure

Arrive at SFO more than 15 minutes late?

22% chance · ±0 pts +0 pts · 24h

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

How late will it get to SFO?

On time or early
78%
15–30 min late
9%
30 min–1 hour late
6%
1–2 hours late
5%
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

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

↑ Arrivals into SFO at that hour are often late

↑ 6pm departures from ATL are often late

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at ATL

Weather at each end

ATL (origin) Gusts9 kt Ceilingnone (clear) Visibility10+ mi Precipnone

SFO (destination) Gusts19 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 517 · ATL → SFO

Odds over time

How late will it get to SFO?