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 1633
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
B6 1633 · BOS → SFO
departs 7:05 PM ET · arrives 10:46 PM PT
Forecast issued Wed 2:00 PM ET · 5h before departure
Watch this flight
Other days
Today
Thu 10/1 50%
Fri 10/2 41%
Sun 10/4 42%
Mon 10/5 36%
Tue 10/6 26%
Odds over time
Arrive at SFO more than 15 minutes late?
35%
chance · ±0 pts
−10 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
35%
Leave 15+ late
36%
Arrive 1h+ late
11%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.7d
2d
1d
12h
Now
Departs
Lands
Arrive at SFO more than 15 minutes late?
Calm-weather odds: 41% · changed −10 pts in 24h
−10 pts
35%
Yes 35%
No 65%
Leave BOS more than 15 minutes late?
Calm-weather odds: 39% · changed −5 pts in 24h
−5 pts
36%
Yes 36%
No 64%
Arrive at SFO more than an hour late?
Calm-weather odds: 14% · changed −3 pts in 24h
−3 pts
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to SFO?
On time or early
65%
15–30 min late
5%
30 min–1 hour late
19%
1–2 hours late
7%
Over 2 hours late
4%
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
↑
7pm departures from BOS are often late
↑
Arrivals into SFO at that hour are often late
↓
Mostly benign weather forecast at SFO
↓
Wednesdays in September are usually quieter than average
Weather at each end
BOS (origin)
Gusts 8 kt Ceiling 700 ft Visibility 2 mi Precip 0.02 in
SFO (destination)
Gusts 13 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.