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.
REPUBLIC · FLIGHT YX 3487
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5
YX 3487 · IAD → CHS
departs 12:35 PM ET · arrives 2:27 PM ET
Forecast issued Sat 10:00 AM ET · 51h before departure
Watch this flight
Other days
Today 21%
Sun 10/4 19%
Mon 10/5
Fri 10/9 10%
Odds over time
Arrive at CHS more than 15 minutes late?
10%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
10%
Leave 15+ late
10%
Arrive 1h+ late
2%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.5d
Now
1d
12h
6h
Departs
Lands
Arrive at CHS more than 15 minutes late?
Calm-weather odds: 6% · changed – in 24h
–
10%
Yes 10%
No 90%
Leave IAD more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
10%
Yes 10%
No 90%
Arrive at CHS more than an hour late?
Calm-weather odds: 2% · changed – in 24h
–
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
1%
Yes 1%
No 99%
How late will it get to CHS?
On time or early
89%
15–30 min late
3%
30 min–1 hour late
5%
1–2 hours late
<1%
Over 2 hours late
1%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 300 ft, visibility down to 2 mi, 1.4 in of rain forecast at CHS that day
↓
Mondays in October are usually quieter than average
↓
CHS usually runs smoothly
Weather at each end
IAD (origin)
Gusts 20 kt Ceiling 200 ft Visibility 0.7 mi Precip none
CHS (destination)
Gusts 13 kt Ceiling 300 ft Visibility 2 mi Precip 1.73 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.