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.
JETBLUE · FLIGHT B6 734
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
B6 734 · SFO → BOS
departs 3:18 PM PT · arrives 11:59 PM ET
Forecast issued Wed 5:00 PM ET · 1h before departure
Watch this flight
Other days
Today
Thu 10/1 30%
Fri 10/2 35%
Sat 10/3 21%
Sun 10/4 29%
Mon 10/5 34%
Tue 10/6 22%
Odds over time
Arrive at BOS more than 15 minutes late?
25%
chance · ±1 pts
−3 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
25%
Leave 15+ late
27%
Arrive 1h+ late
14%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 25% · changed −3 pts in 24h
−3 pts
25%
Yes 25%
No 75%
Leave SFO more than 15 minutes late?
Calm-weather odds: 27% · changed +0 pts in 24h
+0 pts
27%
Yes 27%
No 73%
Arrive at BOS more than an hour late?
Calm-weather odds: 14% · changed +0 pts in 24h
+0 pts
14%
Yes 14%
No 86%
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
74%
15–30 min late
7%
30 min–1 hour late
4%
1–2 hours late
11%
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
↑
B6's recent on-time record
↑
Arrivals into BOS at that hour are often late
↑
3pm departures from SFO are often late
↓
Mostly benign weather forecast at SFO
↓
Wednesdays in September are usually quieter than average
Weather at each end
SFO (origin)
Gusts 8 kt Ceiling none (clear) Visibility 10+ mi Precip none
BOS (destination)
Gusts 8 kt Ceiling 700 ft Visibility 2 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.