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 3511
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
F9 3511 · BOS → ATL
departs 11:52 AM ET · arrives 2:46 PM ET
Forecast issued Wed 7:00 AM ET · 29h before departure
Watch this flight
Other days
Today 33%
Thu 10/1
Fri 10/2 22%
Sat 10/3 26%
Sun 10/4 23%
Mon 10/5 31%
Tue 10/6 21%
Odds over time
Arrive at ATL more than 15 minutes late?
25%
chance · ±3 pts
+3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
25%
Leave 15+ late
24%
Arrive 1h+ late
10%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 20% · changed +3 pts in 24h
+3 pts
25%
Yes 25%
No 75%
Leave BOS more than 15 minutes late?
Calm-weather odds: 22% · changed +2 pts in 24h
+2 pts
24%
Yes 24%
No 76%
Arrive at ATL more than an hour late?
Calm-weather odds: 9% · changed +2 pts in 24h
+2 pts
10%
Yes 10%
No 90%
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
75%
15–30 min late
4%
30 min–1 hour late
10%
1–2 hours late
8%
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 30% of the time recently
↑
11am departures from BOS are often late
↓
Mostly benign weather forecast at ATL
↓
Mostly benign weather forecast at BOS
Weather at each end
BOS (origin)
Gusts 16 kt Ceiling none (clear) Visibility 7 mi Precip none
ATL (destination)
Gusts 13 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.