Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 520 SCHEDULED · TYPICAL SCHEDULE

Monday, October 5 Tomorrow

DL 520 · ATL → LGA

departs 9:00 PM ET · arrives 11:24 PM ET

Forecast issued Sun 9:00 AM ET · 36h before departure

Arrive at LGA more than 15 minutes late?

26% chance · ±3 pts −1 pt · 24h

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

How late will it get to LGA?

On time or early
73%
15–30 min late
13%
30 min–1 hour late
7%
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

↑ 9pm departures from ATL are often late

↑ Arrivals into LGA at that hour are often late

↑ Later flights pick up delays from earlier in the day

↓ ATL usually runs smoothly

↓ Mondays in October are usually quieter than average

Weather at each end

ATL (origin) Gusts11 kt Ceiling400 ft Visibility4.33333 mi Precip0.05 in

LGA (destination) Gusts23 kt Ceiling3,833 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 520 · ATL → LGA

Odds over time

How late will it get to LGA?