Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 3565
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
F9 3565 · DTW → DEN
departs 1:19 PM ET · arrives 2:35 PM MT
Forecast issued Thu 10:00 PM ET · 63h before departure
Watch this flight
Other days
Today 37%
Fri 10/2 19%
Sat 10/3 14%
Sun 10/4
Mon 10/5 21%
Tue 10/6 14%
Wed 10/7 15%
Odds over time
Arrive at DEN more than 15 minutes late?
15%
chance · ±4 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
19%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.6d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 13% · changed – in 24h
–
15%
Yes 15%
No 85%
Leave DTW more than 15 minutes late?
Calm-weather odds: 16% · changed – in 24h
–
19%
Yes 19%
No 81%
Arrive at DEN more than an hour late?
Calm-weather odds: 4% · changed – in 24h
–
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
84%
15–30 min late
6%
30 min–1 hour late
4%
1–2 hours late
2%
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
↑
1pm departures from DTW are often late
↑
Arrivals into DEN at that hour are often late
↓
Mostly benign weather forecast at DTW
↓
Gusts to 27 kt forecast at DEN that day
Weather at each end
DTW (origin)
Gusts 16 kt Ceiling none (clear) Visibility 10+ mi Precip none
DEN (destination)
Gusts 28 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.