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 727 SCHEDULED · TYPICAL SCHEDULE

Saturday, October 3

DL 727 · ATL → DCA

departs 7:55 PM ET · arrives 9:49 PM ET

Forecast issued Wed 11:00 PM ET · 69h before departure

Arrive at DCA more than 15 minutes late?

19% chance · ±2 pts +0 pts · 24h

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

How late will it get to DCA?

On time or early
80%
15–30 min late
7%
30 min–1 hour late
5%
1–2 hours late
3%
Over 2 hours late
4%
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 42% of the time recently

↑ Cloud base down to 300 ft, 0.5 in of rain forecast at ATL that day

↑ 7pm departures from ATL are often late

↓ ATL usually runs smoothly

↓ Saturdays in October are usually quieter than average

Weather at each end

ATL (origin) Gusts10 kt Ceiling300 ft Visibility4 mi Precip0.46 in

DCA (destination) Gusts15 kt Ceiling2,233 ft Visibility10+ mi Precip0.03 in

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 727 · ATL → DCA

Odds over time

How late will it get to DCA?