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.
SKYWEST · FLIGHT OO 3990
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
OO 3990 · GRR → MSP
departs 11:34 AM ET · arrives 12:14 PM CT
Forecast issued Fri 2:00 AM ET · 10h before departure
Watch this flight
Other days
Today
Sat 10/3 8%
Sun 10/4 4%
Mon 10/5 11%
Tue 10/6 8%
Wed 10/7 8%
Thu 10/8 7%
Odds over time
Arrive at MSP more than 15 minutes late?
18%
chance · ±0 pts
+13 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
17%
Arrive 1h+ late
5%
Cancelled
8%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.6d
2d
1d
Now
6h
Departs
Lands
Arrive at MSP more than 15 minutes late?
Calm-weather odds: 6% · changed +13 pts in 24h
+13 pts
18%
Yes 18%
No 82%
Leave GRR more than 15 minutes late?
Calm-weather odds: 11% · changed +8 pts in 24h
+8 pts
17%
Yes 17%
No 83%
Arrive at MSP more than an hour late?
Calm-weather odds: 4% · changed +2 pts in 24h
+2 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +7 pts in 24h
+7 pts
8%
Yes 8%
No 92%
How late will it get to MSP?
On time or early
75%
15–30 min late
12%
30 min–1 hour late
<1%
1–2 hours late
4%
Over 2 hours late
1%
Cancelled
8%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↓
Mostly benign weather forecast at MSP
↓
MSP usually runs smoothly
Weather at each end
GRR (origin)
Gusts 16 kt Ceiling 1,100 ft Visibility 6 mi Precip 0.18 in
MSP (destination)
Gusts 9 kt Ceiling 11,000 ft 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.