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.

AMERICAN · FLIGHT AA 1878 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

AA 1878 · DFW → FSD

departs 2:46 PM CT · arrives 4:54 PM CT
Forecast issued Sat 2:00 AM ET · 38h before departure

Odds over time

Arrive at FSD more than 15 minutes late?
36% chance · ±2 pts −6 pts · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 5.7d 2d Now 1d 12h 6h Departs Lands

How late will it get to FSD?

  1. On time or early
    64%
  2. 15–30 min late
    14%
  3. 30 min–1 hour late
    11%
  4. 1–2 hours late
    6%
  5. Over 2 hours late
    5%
  6. Cancelled
    <1%

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