Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
JETBLUE · FLIGHT B6 398
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Tomorrow
B6 398 · SEA → BOS
departs 12:09 AM PT · arrives 8:33 AM ET
Forecast issued Tue 2:00 AM ET · 25h before departure
Watch this flight
Other days
Today 20%
Wed 10/28
Thu 10/29 25%
Fri 10/30 33%
Sat 10/31 29%
Sun 11/1 26%
Odds over time
Arrive at BOS more than 15 minutes late?
18%
chance · ±1 pts
−4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
26%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.1d
2d
Now
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 22% · changed −4 pts in 24h
−4 pts
18%
Yes 18%
No 82%
Leave SEA more than 15 minutes late?
Calm-weather odds: 26% · changed +0 pts in 24h
+0 pts
26%
Yes 26%
No 74%
Arrive at BOS more than an hour late?
Calm-weather odds: 8% · changed +1 pt in 24h
+1 pt
8%
Yes 8%
No 92%
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
82%
15–30 min late
8%
30 min–1 hour late
3%
1–2 hours late
5%
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
↑
This flight has been late 41% of the time recently
↑
B6's recent on-time record
↑
Other factors
↓
Mostly benign weather forecast at BOS
↓
Early flights usually leave on time
Weather at each end
SEA (origin)
Gusts 20 kt Ceiling 1,500 ft Visibility 6 mi Precip 0.07 in
BOS (destination)
Gusts 10 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.