Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
JETBLUE · FLIGHT B6 198
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
B6 198 · SEA → BOS
departs 11:21 PM PT · arrives 7:39 AM ET
Forecast issued Thu 7:00 PM ET · 55h before departure
Watch this flight
Other days
Today 38%
Fri 10/2 43%
Sat 10/3
Sun 10/4 46%
Mon 10/5 42%
Tue 10/6 38%
Wed 10/7 38%
Odds over time
Arrive at BOS more than 15 minutes late?
41%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
41%
Leave 15+ late
39%
Arrive 1h+ late
10%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.2d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 41% · changed – in 24h
–
41%
Yes 41%
No 59%
Leave SEA more than 15 minutes late?
Calm-weather odds: 34% · changed – in 24h
–
39%
Yes 39%
No 61%
Arrive at BOS more than an hour late?
Calm-weather odds: 12% · changed – in 24h
–
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to BOS?
On time or early
58%
15–30 min late
18%
30 min–1 hour late
13%
1–2 hours late
7%
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 40% of the time recently
↑
B6's recent on-time record
↑
Later flights pick up delays from earlier in the day
↓
Cloud base down to 200 ft forecast at SEA that day
↓
Mostly benign weather forecast at BOS
Weather at each end
SEA (origin)
Gusts 12 kt Ceiling 300 ft Visibility 10+ mi Precip none
BOS (destination)
Gusts 12 kt Ceiling 6,333 ft 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.