Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
REPUBLIC · FLIGHT YX 4374
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
YX 4374 · LGA → BOS
departs 5:59 PM ET · arrives 7:28 PM ET
Forecast issued Fri 10:00 AM ET · 8h before departure
Watch this flight
Other days
Today
Sat 10/3 18%
Sun 10/4 44%
Mon 10/5 35%
Tue 10/6 22%
Wed 10/7 46%
Odds over time
Arrive at BOS more than 15 minutes late?
78%
chance · ±0 pts
+29 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
78%
Leave 15+ late
66%
Arrive 1h+ late
52%
Cancelled
15%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
3.8d
2d
1d
12h
Now
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 15% · changed +29 pts in 24h
+29 pts
78%
Yes 78%
No 22%
Leave LGA more than 15 minutes late?
Calm-weather odds: 17% · changed +19 pts in 24h
+19 pts
66%
Yes 66%
No 34%
Arrive at BOS more than an hour late?
Calm-weather odds: 5% · changed +30 pts in 24h
+30 pts
52%
Yes 52%
No 48%
Cancelled?
Calm-weather odds: <1% · changed −5 pts in 24h
−5 pts
15%
Yes 15%
No 85%
How late will it get to BOS?
On time or early
19%
15–30 min late
7%
30 min–1 hour late
15%
1–2 hours late
23%
Over 2 hours late
21%
Cancelled
15%
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
↑
Mostly benign weather forecast at LGA
↑
5pm departures from LGA are often late
↓
YX's recent on-time record
↓
Other factors
Weather at each end
LGA (origin)
Gusts 18 kt Ceiling 4,500 ft Visibility 10+ mi Precip 0.30 in
BOS (destination)
Gusts 21 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.23 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.