Schedule: a typical summer Tuesday (the flights of Jul 28, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
JETBLUE · FLIGHT B6 1388
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29
B6 1388 · LAX → BOS
departs 10:59 AM PT · arrives 7:42 PM ET
Forecast issued Tue 10:00 PM ET · 8h after departure
Watch this flight
Other days
Tue 9/29
Today 25%
Sun 10/4 46%
Mon 10/5 32%
Fri 10/9 26%
Odds over time
Arrive at BOS more than 15 minutes late?
37%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
37%
Leave 15+ late
27%
Arrive 1h+ late
18%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
2d
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 37% · changed −2 pts in 24h
−2 pts
37%
Yes 37%
No 63%
Leave LAX more than 15 minutes late?
Calm-weather odds: 27% · changed −4 pts in 24h
−4 pts
27%
Yes 27%
No 73%
Arrive at BOS more than an hour late?
Calm-weather odds: 18% · changed +1 pt in 24h
+1 pt
18%
Yes 18%
No 82%
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
63%
15–30 min late
10%
30 min–1 hour late
9%
1–2 hours late
15%
Over 2 hours late
3%
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
↑
10am departures from LAX are often late
↑
B6's recent on-time record
↓
Mostly benign weather forecast at LAX
↓
Tuesdays in September are usually quieter than average
Weather at each end
LAX (origin)
Gusts 24 kt Ceiling none (clear) Visibility 10+ mi Precip none
BOS (destination)
Gusts 11 kt Ceiling 600 ft Visibility 1.5 mi Precip 0.03 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.