Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 3971
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Tomorrow
F9 3971 · DFW → PHX
departs 9:02 AM CT · arrives 9:50 AM MT
Forecast issued Tue 6:00 AM ET · 28h before departure
Watch this flight
Other days
Today 17%
Wed 10/28
Thu 10/29 23%
Fri 10/30 30%
Sat 10/31 22%
Sun 11/1 29%
Mon 11/2 29%
Odds over time
Arrive at PHX more than 15 minutes late?
18%
chance · ±2 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
13%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
6.4d
2d
Now
12h
6h
Departs
Lands
Arrive at PHX more than 15 minutes late?
Calm-weather odds: 16% · changed −1 pt in 24h
−1 pt
18%
Yes 18%
No 82%
Leave DFW more than 15 minutes late?
Calm-weather odds: 13% · changed +0 pts in 24h
+0 pts
13%
Yes 13%
No 87%
Arrive at PHX more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to PHX?
On time or early
82%
15–30 min late
10%
30 min–1 hour late
5%
1–2 hours late
1%
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
↑
9am departures from DFW are often late
↑
PHX is prone to delays
↑
F9's recent on-time record
↓
Mostly benign weather forecast at DFW
↓
Mostly benign weather forecast at PHX
Weather at each end
DFW (origin)
Gusts 18 kt
Ceiling none (clear)
Visibility 10+ mi
Precip none
PHX (destination)
Gusts 8 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.