Schedule: a typical Sunday (the flights of Jul 26, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

DELTA · FLIGHT DL 2439 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4

DL 2439 · BNA → DTW

departs 6:05 AM CT · arrives 8:46 AM ET

Forecast issued Thu 1:00 PM ET · 66h before departure

Arrive at DTW more than 15 minutes late?

7% chance · ±1 pts +2 pts · 24h

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

How late will it get to DTW?

On time or early
92%
15–30 min late
1%
30 min–1 hour late
1%
1–2 hours late
3%
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

↑ Cloud base down to 200 ft, visibility down to 0.7 mi forecast at BNA that day

↑ Other factors

↓ Early flights usually leave on time

↓ 6am departures from BNA are usually not late

Weather at each end

BNA (origin) Gusts7 kt Ceiling200 ft Visibility0.4 mi Precip0.20 in

DTW (destination) Gusts5 kt Ceilingnone (clear) 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 2439 · BNA → DTW

Odds over time

How late will it get to DTW?