Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ENVOY · FLIGHT MQ 3663SCHEDULED · TYPICAL ODDS
MQ 3663 · ORD → GRB
departs 11:00 PM CT · arrives 12:12 AM CT
Forecast issued Sat 8:00 PM ET · 148h before departure
Typical odds
Too early for a weather forecast — these are typical odds for this flight on a Friday in October, from the weather this date has had in past years (the range shows how much they varied). They’ll switch to forecast-based odds about 3 days before departure.
Odds over time
Arrive at GRB more than 15 minutes late?
12%chance · ±2 pts+0 pts · 24h
HOW SURE WE ARELow. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
How late will it get to GRB?
On time or early
86%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
4%
Over 2 hours late
<1%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.