Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

DELTA · FLIGHT DL 537 SCHEDULED · TYPICAL SCHEDULE

Thursday, October 1 Tomorrow

DL 537 · ATL → DCA

departs 9:59 PM ET · arrives 11:52 PM ET

Forecast issued Wed 1:00 AM ET · 45h before departure

Arrive at DCA more than 15 minutes late?

20% chance · ±1 pts +3 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
79%
15–30 min late
5%
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

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

↑ 9pm departures from ATL are often late

↑ Later flights pick up delays from earlier in the day

↓ Mostly benign weather forecast at DCA

↓ Mostly benign weather forecast at ATL

Weather at each end

ATL (origin) Gusts13 kt Ceilingnone (clear) Visibility10+ mi Precipnone

DCA (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 537 · ATL → DCA

Odds over time

How late will it get to DCA?