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.
ENVOY · FLIGHT MQ 3505
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
MQ 3505 · ORD → PIA
departs 11:15 PM CT · arrives 12:22 AM CT
Forecast issued Fri 1:00 PM ET · 59h before departure
Watch this flight
Other days
Today 17%
Sat 10/3 9%
Sun 10/4
Mon 10/5 12%
Wed 10/7 11%
Odds over time
Arrive at PIA more than 15 minutes late?
10%
chance · ±1 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
10%
Leave 15+ late
15%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.1d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at PIA more than 15 minutes late?
Calm-weather odds: 9% · changed – in 24h
–
10%
Yes 10%
No 90%
Leave ORD more than 15 minutes late?
Calm-weather odds: 14% · changed – in 24h
–
15%
Yes 15%
No 85%
Arrive at PIA more than an hour late?
Calm-weather odds: 6% · changed – in 24h
–
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to PIA?
On time or early
89%
15–30 min late
2%
30 min–1 hour late
4%
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
↑
Later flights pick up delays from earlier in the day
↑
11pm departures from ORD are often late
↑
ORD is busy at that time
↓
Mostly benign weather forecast at ORD
↓
Mostly benign weather forecast at PIA
Weather at each end
ORD (origin)
Gusts 12 kt Ceiling none (clear) Visibility 10+ mi Precip none
PIA (destination)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
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.