Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 5388
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
OO 5388 · DEN → HLN
departs 11:30 AM MT · arrives 1:33 PM MT
Forecast issued Sun 10:00 AM ET · 28h before departure
Watch this flight
Other days
Today 28%
Mon 10/5
Tue 10/6 9%
Wed 10/7 13%
Thu 10/8 10%
Fri 10/9 12%
Sat 10/10 12%
Odds over time
Arrive at HLN more than 15 minutes late?
13%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
13%
Leave 15+ late
19%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.6d
2d
Now
12h
6h
Departs
Lands
Arrive at HLN more than 15 minutes late?
Calm-weather odds: 11% · changed +1 pt in 24h
+1 pt
13%
Yes 13%
No 87%
Leave DEN more than 15 minutes late?
Calm-weather odds: 18% · changed +2 pts in 24h
+2 pts
19%
Yes 19%
No 81%
Arrive at HLN more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to HLN?
On time or early
87%
15–30 min late
3%
30 min–1 hour late
5%
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
↑
11am departures from DEN are often late
↑
DEN is busy at that time
↑
OO's recent on-time record
↓
Mostly benign weather forecast at DEN
↓
HLN usually runs smoothly
Weather at each end
DEN (origin)
Gusts 19 kt Ceiling none (clear) Visibility 10+ mi Precip none
HLN (destination)
Gusts 24 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.