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 4346
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
YX 4346 · JFK → BOS
departs 5:08 PM ET · arrives 6:44 PM ET
Forecast issued Fri 12:00 AM ET · 41h before departure
Watch this flight
Other days
Today 51%
Sat 10/3
Sun 10/4 32%
Mon 10/5 32%
Tue 10/6 20%
Wed 10/7 40%
Odds over time
Arrive at BOS more than 15 minutes late?
17%
chance · ±3 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
17%
Leave 15+ late
13%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 13% · changed −2 pts in 24h
−2 pts
17%
Yes 17%
No 83%
Leave JFK more than 15 minutes late?
Calm-weather odds: 10% · changed +0 pts in 24h
+0 pts
13%
Yes 13%
No 87%
Arrive at BOS more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
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
82%
15–30 min late
6%
30 min–1 hour late
6%
1–2 hours late
3%
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
↑
Arrivals into BOS at that hour are often late
↑
This flight has been late 33% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at JFK
↓
YX's recent on-time record
Weather at each end
JFK (origin)
Gusts 15 kt Ceiling 5,000 ft Visibility 10+ mi Precip none
BOS (destination)
Gusts 12 kt Ceiling 6,667 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.