Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
JETBLUE · FLIGHT B6 1633
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Yesterday
B6 1633 · BOS → SFO
departs 7:05 PM ET · arrives 10:46 PM PT
Forecast issued Tue 10:00 PM ET · 3h after departure
Watch this flight
Other days
Tue 9/29
Today 51%
Thu 10/1 36%
Fri 10/2 36%
Sun 10/4 42%
Mon 10/5 36%
Tue 10/6 26%
Odds over time
Arrive at SFO more than 15 minutes late?
45%
chance · ±2 pts
+8 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
45%
Leave 15+ late
48%
Arrive 1h+ late
14%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
2d
1d
12h
6h
Departs
Now
Lands
Arrive at SFO more than 15 minutes late?
Calm-weather odds: 42% · changed +8 pts in 24h
+8 pts
45%
Yes 45%
No 55%
Leave BOS more than 15 minutes late?
Calm-weather odds: 48% · changed +0 pts in 24h
+0 pts
48%
Yes 48%
No 52%
Arrive at SFO more than an hour late?
Calm-weather odds: 14% · changed +1 pt in 24h
+1 pt
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 SFO?
On time or early
55%
15–30 min late
12%
30 min–1 hour late
19%
1–2 hours late
9%
Over 2 hours late
5%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 40% of the time recently
↑
Arrivals into SFO at that hour are often late
↑
7pm departures from BOS are often late
↓
Other factors
↓
Tuesdays in September are usually quieter than average
Weather at each end
BOS (origin)
Gusts 11 kt Ceiling 600 ft Visibility 1.5 mi Precip 0.03 in
SFO (destination)
Gusts 19 kt Ceiling none (clear) 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.