Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 688
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
F9 688 · DEN → DCA
departs 11:25 AM MT · arrives 4:59 PM ET
Forecast issued Sun 7:00 PM ET · 18h before departure
Watch this flight
Other days
Today 41%
Mon 10/5
Tue 10/6 15%
Thu 10/8 21%
Fri 10/9 28%
Sat 10/10 18%
Odds over time
Arrive at DCA more than 15 minutes late?
33%
chance · ±3 pts
+3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
33%
Leave 15+ late
34%
Arrive 1h+ late
10%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.6d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at DCA more than 15 minutes late?
Calm-weather odds: 28% · changed +3 pts in 24h
+3 pts
33%
Yes 33%
No 67%
Leave DEN more than 15 minutes late?
Calm-weather odds: 28% · changed +7 pts in 24h
+7 pts
34%
Yes 34%
No 66%
Arrive at DCA more than an hour late?
Calm-weather odds: 8% · changed +1 pt in 24h
+1 pt
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 DCA?
On time or early
66%
15–30 min late
11%
30 min–1 hour late
11%
1–2 hours late
7%
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
↑
Arrivals into DCA at that hour are often late
↑
11am departures from DEN are often late
↓
Mostly benign weather forecast at DEN
↓
Mondays in October are usually quieter than average
Weather at each end
DEN (origin)
Gusts 19 kt Ceiling none (clear) Visibility 10+ mi Precip none
DCA (destination)
Gusts 19 kt Ceiling 100 ft Visibility 0.2 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.