Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 4000
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
F9 4000 · SFO → DFW
departs 12:29 AM PT · arrives 6:10 AM CT
Forecast issued Wed 10:00 PM ET · 18h after departure
Watch this flight
Other days
Wed 9/30
Today 30%
Mon 10/5 19%
Fri 10/9 17%
Odds over time
Arrive at DFW more than 15 minutes late?
30%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
30%
Leave 15+ late
34%
Arrive 1h+ late
10%
Cancelled
3%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at DFW more than 15 minutes late?
Calm-weather odds: 30% · changed +2 pts in 24h
+2 pts
30%
Yes 30%
No 70%
Leave SFO more than 15 minutes late?
Calm-weather odds: 34% · changed +2 pts in 24h
+2 pts
34%
Yes 34%
No 66%
Arrive at DFW more than an hour late?
Calm-weather odds: 10% · changed +2 pts in 24h
+2 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
3%
Yes 3%
No 97%
How late will it get to DFW?
On time or early
68%
15–30 min late
11%
30 min–1 hour late
7%
1–2 hours late
6%
Over 2 hours late
4%
Cancelled
3%
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 40% of the time recently
↑
Gusts to 30 kt, 0.4 in of rain, thunderstorms forecast at DFW that day
↓
Mostly benign weather forecast at SFO
↓
Early flights usually leave on time
Weather at each end
SFO (origin)
Gusts 22 kt Ceiling none (clear) Visibility 10+ mi Precip none
DFW (destination)
Gusts 30 kt Ceiling 2,000 ft Visibility 5 mi Precip 0.25 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.