Tracked live by the FAA. The scheduled times shown are from a typical Tuesday because the FAA's flight plan was first seen after takeoff.

DELTA · FLIGHT DL 820 LANDED 4:27 PM ET, ~2 MIN EARLY

Tuesday, September 29 Today

DL 820 · SLC → DCA

took off 10:48 AM MT · landed 4:27 PM ET (scheduled 10:29 AM MT → 4:35 PM ET)

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

Arrive at DCA more than 15 minutes late?

Not late chance · ±0 pts +2 pts · 24h

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

How late did it get to DCA?

RESOLVED

On time or early
✓
15–30 min late
–
30 min–1 hour late
–
1–2 hours late
–
Over 2 hours late
–

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

What’s moving the odds

↑ Arrivals into DCA at that hour are often late

↑ SLC is busy at that time

↑ Other factors

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at SLC

Weather at each end

SLC (origin) Gusts16 kt Ceiling6,500 ft Visibility10+ mi Precipnone

DCA (destination) Gusts7 kt Ceiling4,000 ft 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 820 · SLC → DCA

Odds over time

How late did it get to DCA?