Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 1279
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
F9 1279 · MIA → DEN
departs 6:00 AM ET · arrives 8:23 AM MT
Forecast issued Fri 4:00 PM ET · 14h before departure
Watch this flight
Other days
Today 12%
Sat 10/3
Sun 10/4 13%
Mon 10/5 15%
Tue 10/6 10%
Wed 10/7 10%
Thu 10/8 13%
Odds over time
Arrive at DEN more than 15 minutes late?
12%
chance · ±1 pts
−2 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
12%
Leave 15+ late
13%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.3d
2d
1d
Now
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 13% · changed −2 pts in 24h
−2 pts
12%
Yes 12%
No 88%
Leave MIA more than 15 minutes late?
Calm-weather odds: 13% · changed −1 pt in 24h
−1 pt
13%
Yes 13%
No 87%
Arrive at DEN more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
88%
15–30 min late
4%
30 min–1 hour late
4%
1–2 hours late
2%
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
↑
F9's recent on-time record
↑
MIA is prone to delays
↓
Early flights usually leave on time
↓
6am departures from MIA are usually not late
Weather at each end
MIA (origin)
Gusts 23 kt Ceiling none (clear) Visibility 10+ mi Precip none
DEN (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.