Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 900 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Today

DL 900 · BOS → ATL

departs 8:40 PM ET · arrives 11:55 PM ET

Forecast issued Sun 3:00 PM ET · 6h before departure

Arrive at ATL more than 15 minutes late?

42% chance · ±0 pts +10 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

How late will it get to ATL?

On time or early
58%
15–30 min late
23%
30 min–1 hour late
5%
1–2 hours late
12%
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

↑ 8pm departures from BOS are often late

↑ Later flights pick up delays from earlier in the day

↑ Arrivals into ATL at that hour are often late

↓ Other factors

↓ ATL usually runs smoothly

Weather at each end

BOS (origin) Gusts13 kt Ceiling6,000 ft Visibility10+ mi Precipnone

ATL (destination) Gusts6 kt Ceiling900 ft Visibility4 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 900 · BOS → ATL

Odds over time

How late will it get to ATL?