Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
REPUBLIC · FLIGHT YX 4666
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
YX 4666 · BUF → BOS
departs 10:33 AM ET · arrives 12:15 PM ET
Forecast issued Fri 5:00 AM ET · 30h before departure
Watch this flight
Other days
Today 22%
Sat 10/3
Sun 10/4 6%
Mon 10/5 15%
Tue 10/6 9%
Wed 10/7 15%
Thu 10/8 14%
Odds over time
Arrive at BOS more than 15 minutes late?
6%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
6%
Leave 15+ late
6%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
4.5d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 5% · changed +2 pts in 24h
+2 pts
6%
Yes 6%
No 94%
Leave BUF more than 15 minutes late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
6%
Yes 6%
No 94%
Arrive at BOS 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 BOS?
On time or early
93%
15–30 min late
2%
30 min–1 hour late
<1%
1–2 hours late
2%
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
↓
YX's recent on-time record
↓
Mostly benign weather forecast at BUF
Weather at each end
BUF (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
BOS (destination)
Gusts 11 kt Ceiling 4,500 ft Visibility 10+ mi Precip 0.02 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.