Schedule: the flights that flew on Wednesday, Oct 7, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
REPUBLIC · FLIGHT YX 4678
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 14
YX 4678 · STL → DCA
departs 7:03 AM CT · arrives 10:24 AM ET
Forecast issued Mon 10:00 AM ET · 46h before departure
Watch this flight
Other days
Today 11%
Tue 10/13 6%
Wed 10/14
Thu 10/15 8%
Fri 10/16 8%
Sat 10/17 7%
Odds over time
Arrive at DCA more than 15 minutes late?
8%
chance · ±1 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
8%
Leave 15+ late
9%
Arrive 1h+ late
3%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
6.3d
Now
1d
12h
6h
Departs
Lands
Arrive at DCA more than 15 minutes late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
8%
Yes 8%
No 92%
Leave STL more than 15 minutes late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
9%
Yes 9%
No 91%
Arrive at DCA more than an hour late?
Calm-weather odds: 3% · changed −1 pt in 24h
−1 pt
3%
Yes 3%
No 97%
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
91%
15–30 min late
2%
30 min–1 hour late
2%
1–2 hours late
1%
Over 2 hours late
2%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 200 ft, visibility down to 0.8 mi, 0.7 in of rain forecast at STL that day
↑
This flight has been late 35% of the time recently
↓
Wednesdays in October are usually quieter than average
↓
Mostly benign weather forecast at DCA
Weather at each end
STL (origin)
Gusts 10 kt Ceiling 200 ft Visibility 2.16667 mi Precip 0.57 in
DCA (destination)
Gusts 11 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.