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 717 SCHEDULED · TYPICAL SCHEDULE

Tuesday, September 29 Today

DL 717 · SFO → DTW

departs 2:19 PM PT · arrives 9:51 PM ET

Forecast issued Tue 9:00 PM ET · 4h after departure

Arrive at DTW more than 15 minutes late?

19% chance · ±1 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 DTW?

On time or early
81%
15–30 min late
8%
30 min–1 hour late
6%
1–2 hours late
3%
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

↑ 2pm departures from SFO are often late

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

↑ Arrivals into DTW at that hour are often late

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at SFO

Weather at each end

SFO (origin) Gusts19 kt Ceilingnone (clear) Visibility10+ mi Precipnone

DTW (destination) Gusts9 kt Ceilingnone (clear) Visibility9 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 717 · SFO → DTW

Odds over time

How late will it get to DTW?