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 685
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
F9 685 · DCA → DEN
departs 7:00 AM ET · arrives 9:01 AM MT
Forecast issued Wed 12:00 AM ET · 31h before departure
Watch this flight
Other days
Today 23%
Thu 10/1
Fri 10/2 12%
Sat 10/3 12%
Sun 10/4 12%
Mon 10/5 14%
Tue 10/6 11%
Odds over time
Arrive at DEN more than 15 minutes late?
15%
chance · ±2 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
9%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.7d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 11% · changed −1 pt in 24h
−1 pt
15%
Yes 15%
No 85%
Leave DCA more than 15 minutes late?
Calm-weather odds: 8% · changed +1 pt in 24h
+1 pt
9%
Yes 9%
No 91%
Arrive at DEN more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
85%
15–30 min late
4%
30 min–1 hour late
6%
1–2 hours late
2%
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
↑
Mostly benign weather forecast at DEN
↑
DCA is prone to delays
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at DCA
Weather at each end
DCA (origin)
Gusts 9 kt Ceiling none (clear) Visibility 9 mi Precip none
DEN (destination)
Gusts 20 kt Ceiling 8,000 ft Visibility 10+ 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.