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 638
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
B6 638 · AUS → BOS
departs 6:42 PM CT · arrives 11:50 PM ET
Forecast issued Thu 5:00 AM ET · 63h before departure
Watch this flight
Other days
Today 68%
Fri 10/2 37%
Sat 10/3
Sun 10/4 48%
Mon 10/5 45%
Tue 10/6 32%
Wed 10/7 39%
Odds over time
Arrive at BOS more than 15 minutes late?
35%
chance · ±4 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
35%
Leave 15+ late
50%
Arrive 1h+ late
16%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 30% · changed – in 24h
–
35%
Yes 35%
No 65%
Leave AUS more than 15 minutes late?
Calm-weather odds: 27% · changed – in 24h
–
50%
Yes 50%
No 50%
Arrive at BOS more than an hour late?
Calm-weather odds: 13% · changed – in 24h
–
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
1%
Yes 1%
No 99%
How late will it get to BOS?
On time or early
64%
15–30 min late
7%
30 min–1 hour late
12%
1–2 hours late
10%
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 41% of the time recently
↑
B6's recent on-time record
↑
Cloud base down to 600 ft, 0.4 in of rain forecast at AUS that day
↓
Mostly benign weather forecast at BOS
↓
Saturdays in October are usually quieter than average
Weather at each end
AUS (origin)
Gusts 19 kt Ceiling 600 ft Visibility 4 mi Precip 0.41 in
BOS (destination)
Gusts 12 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.