Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
REPUBLIC · FLIGHT YX 4491
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
YX 4491 · LGA → DCA
departs 7:43 AM ET · arrives 9:13 AM ET
Forecast issued Wed 6:00 PM ET · 10h after departure
Watch this flight
Other days
Today
Thu 10/1 7%
Fri 10/2 8%
Sun 10/4 10%
Mon 10/5 12%
Tue 10/6 9%
Odds over time
Arrive at DCA more than 15 minutes late?
11%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
11%
Leave 15+ late
6%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at DCA more than 15 minutes late?
Calm-weather odds: 11% · changed +3 pts in 24h
+3 pts
11%
Yes 11%
No 89%
Leave LGA more than 15 minutes late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Arrive at DCA more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
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
88%
15–30 min late
5%
30 min–1 hour late
4%
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
↑
LGA is prone to delays
↑
This flight has been late 14% of the time recently
↓
Mostly benign weather forecast at DCA
↓
Mostly benign weather forecast at LGA
Weather at each end
LGA (origin)
Gusts 9 kt Ceiling 2,700 ft Visibility 10+ mi Precip none
DCA (destination)
Gusts 10 kt Ceiling 4,700 ft 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.