Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
FRONTIER · FLIGHT F9 3406
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
F9 3406 · SEA → DEN
departs 12:35 PM PT · arrives 4:40 PM MT
Forecast issued Wed 1:00 AM ET · 39h before departure
Watch this flight
Other days
Today 58%
Thu 10/1
Fri 10/2 28%
Sat 10/3 25%
Sun 10/4 30%
Mon 10/5 31%
Tue 10/6 25%
Odds over time
Arrive at DEN more than 15 minutes late?
26%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
26%
Leave 15+ late
25%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 23% · changed +0 pts in 24h
+0 pts
26%
Yes 26%
No 74%
Leave SEA more than 15 minutes late?
Calm-weather odds: 21% · changed −3 pts in 24h
−3 pts
25%
Yes 25%
No 75%
Arrive at DEN more than an hour late?
Calm-weather odds: 5% · changed −1 pt in 24h
−1 pt
6%
Yes 6%
No 94%
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
73%
15–30 min late
11%
30 min–1 hour late
9%
1–2 hours late
4%
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
↑
Arrivals into DEN at that hour are often late
↑
SEA is busy at that time
↓
Mostly benign weather forecast at SEA
↓
Other factors
Weather at each end
SEA (origin)
Gusts 6 kt Ceiling 3,500 ft Visibility 7 mi Precip none
DEN (destination)
Gusts 20 kt Ceiling 8,000 ft Visibility 10+ mi Precip 0.16 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.