Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
FRONTIER · FLIGHT F9 2399
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
F9 2399 · ATL → IAH
departs 8:45 AM ET · arrives 10:03 AM CT
Forecast issued Wed 4:00 PM ET · 7h after departure
Watch this flight
Other days
Today
Thu 10/1 31%
Fri 10/2 34%
Sat 10/3 24%
Sun 10/4 25%
Mon 10/5 28%
Tue 10/6 19%
Odds over time
Arrive at IAH more than 15 minutes late?
31%
chance · ±1 pts
+8 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
31%
Leave 15+ late
18%
Arrive 1h+ late
9%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at IAH more than 15 minutes late?
Calm-weather odds: 28% · changed +8 pts in 24h
+8 pts
31%
Yes 31%
No 69%
Leave ATL more than 15 minutes late?
Calm-weather odds: 17% · changed +3 pts in 24h
+3 pts
18%
Yes 18%
No 82%
Arrive at IAH more than an hour late?
Calm-weather odds: 9% · changed +2 pts in 24h
+2 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to IAH?
On time or early
68%
15–30 min late
14%
30 min–1 hour late
8%
1–2 hours late
6%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
F9's recent on-time record
↑
ATL is busy at that time
↑
IAH is prone to delays
↓
Wednesdays in September are usually quieter than average
↓
ATL usually runs smoothly
Weather at each end
ATL (origin)
Gusts 10 kt Ceiling 200 ft Visibility 0.5 mi Precip none
IAH (destination)
Gusts 22 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.