Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
REPUBLIC · FLIGHT YX 3520
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Tomorrow
YX 3520 · RDU → IAD
departs 7:45 PM ET · arrives 9:06 PM ET
Forecast issued Fri 11:00 PM ET · 45h before departure
Watch this flight
Other days
Sun 10/4
Mon 10/5 14%
Fri 10/9 17%
Odds over time
Arrive at IAD more than 15 minutes late?
31%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
31%
Leave 15+ late
31%
Arrive 1h+ late
10%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.9d
Now
1d
12h
6h
Departs
Lands
Arrive at IAD more than 15 minutes late?
Calm-weather odds: 12% · changed +0 pts in 24h
+0 pts
31%
Yes 31%
No 69%
Leave RDU more than 15 minutes late?
Calm-weather odds: 8% · changed +5 pts in 24h
+5 pts
31%
Yes 31%
No 69%
Arrive at IAD more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 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 IAD?
On time or early
68%
15–30 min late
6%
30 min–1 hour late
14%
1–2 hours late
6%
Over 2 hours late
4%
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, 0.8 in of rain forecast at RDU that day
↑
Cloud base down to 200 ft, visibility down to 0.8 mi, 0.3 in of rain forecast at IAD that day
↑
7pm departures from RDU are often late
↓
Sundays in October are usually quieter than average
↓
YX's recent on-time record
Weather at each end
RDU (origin)
Gusts 8 kt Ceiling 300 ft Visibility 2 mi Precip 0.78 in
IAD (destination)
Gusts 8 kt Ceiling 200 ft Visibility 0.8 mi Precip 0.29 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.