Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 2551
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
F9 2551 · PHL → ATL
departs 6:30 AM ET · arrives 9:05 AM ET
Forecast issued Fri 1:00 AM ET · 30h before departure
Watch this flight
Other days
Today 19%
Sat 10/3
Sun 10/4 21%
Mon 10/5 25%
Tue 10/6 19%
Wed 10/7 17%
Odds over time
Arrive at ATL more than 15 minutes late?
18%
chance · ±0 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
15%
Arrive 1h+ late
6%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.4d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 18% · changed −1 pt in 24h
−1 pt
18%
Yes 18%
No 82%
Leave PHL more than 15 minutes late?
Calm-weather odds: 13% · changed +3 pts in 24h
+3 pts
15%
Yes 15%
No 85%
Arrive at ATL more than an hour late?
Calm-weather odds: 6% · 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 ATL?
On time or early
81%
15–30 min late
6%
30 min–1 hour late
5%
1–2 hours late
3%
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 28% of the time recently
↑
ATL is prone to delays
↓
Early flights usually leave on time
↓
Other factors
Weather at each end
PHL (origin)
Gusts 13 kt Ceiling 6,333 ft Visibility 10+ mi Precip 0.01 in
ATL (destination)
Gusts 7 kt Ceiling 600 ft Visibility 6 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.