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 3707
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
F9 3707 · SAT → DEN
departs 7:39 PM CT · arrives 9:14 PM MT
Forecast issued Wed 2:00 PM ET · 7h before departure
Watch this flight
Other days
Today
Thu 10/1 33%
Fri 10/2 30%
Sat 10/3 15%
Sun 10/4 15%
Mon 10/5 20%
Tue 10/6 14%
Odds over time
Arrive at DEN more than 15 minutes late?
39%
chance · ±0 pts
−17 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
39%
Leave 15+ late
30%
Arrive 1h+ late
10%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.8d
2d
1d
12h
Now
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 18% · changed −17 pts in 24h
−17 pts
39%
Yes 39%
No 61%
Leave SAT more than 15 minutes late?
Calm-weather odds: 20% · changed −10 pts in 24h
−10 pts
30%
Yes 30%
No 70%
Arrive at DEN more than an hour late?
Calm-weather odds: 5% · changed −12 pts in 24h
−12 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
60%
15–30 min late
18%
30 min–1 hour late
11%
1–2 hours late
4%
Over 2 hours late
5%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,300 ft forecast at SAT that day
↑
F9's recent on-time record
↑
Arrivals into DEN at that hour are often late
↓
Wednesdays in September are usually quieter than average
↓
SAT usually runs smoothly
Weather at each end
SAT (origin)
Gusts 24 kt Ceiling 1,300 ft Visibility 10+ mi Precip 0.04 in
DEN (destination)
Gusts 15 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.04 in
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.