Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 3340
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
F9 3340 · DEN → PHL
departs 11:59 PM MT · arrives 5:39 AM ET
Forecast issued Sun 7:00 AM ET · 43h before departure
Watch this flight
Other days
Today 37%
Mon 10/5
Fri 10/9 25%
Odds over time
Arrive at PHL more than 15 minutes late?
22%
chance · ±4 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
22%
Leave 15+ late
38%
Arrive 1h+ late
13%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
7.1d
Now
1d
12h
6h
Departs
Lands
Arrive at PHL more than 15 minutes late?
Calm-weather odds: 22% · changed +0 pts in 24h
+0 pts
22%
Yes 22%
No 78%
Leave DEN more than 15 minutes late?
Calm-weather odds: 32% · changed +1 pt in 24h
+1 pt
38%
Yes 38%
No 62%
Arrive at PHL more than an hour late?
Calm-weather odds: 9% · changed +0 pts in 24h
+0 pts
13%
Yes 13%
No 87%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to PHL?
On time or early
77%
15–30 min late
2%
30 min–1 hour late
7%
1–2 hours late
10%
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
↑
This flight has been late 36% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Cloud base down to 333 ft forecast at PHL that day
↓
Mostly benign weather forecast at DEN
Weather at each end
DEN (origin)
Gusts 18 kt Ceiling none (clear) Visibility 10+ mi Precip none
PHL (destination)
Gusts 20 kt Ceiling 700 ft 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.