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 638
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
B6 638 · AUS → BOS
departs 6:42 PM CT · arrives 11:50 PM ET
Forecast issued Tue 3:00 PM ET · 5h before departure
Watch this flight
Other days
Today
Wed 9/30 37%
Thu 10/1 56%
Fri 10/2 36%
Sat 10/3 37%
Sun 10/4 48%
Mon 10/5 45%
Odds over time
Arrive at BOS more than 15 minutes late?
40%
chance · ±1 pts
−3 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
40%
Leave 15+ late
45%
Arrive 1h+ late
27%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.7d
2d
1d
12h
Now
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 33% · changed −3 pts in 24h
−3 pts
40%
Yes 40%
No 60%
Leave AUS more than 15 minutes late?
Calm-weather odds: 38% · changed +4 pts in 24h
+4 pts
45%
Yes 45%
No 55%
Arrive at BOS more than an hour late?
Calm-weather odds: 19% · changed −8 pts in 24h
−8 pts
27%
Yes 27%
No 73%
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
60%
15–30 min late
0%
30 min–1 hour late
12%
1–2 hours late
22%
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
↑
B6's recent on-time record
↑
Arrivals into BOS at that hour are often late
↑
6pm departures from AUS are often late
↓
Tuesdays in September are usually quieter than average
↓
AUS usually runs smoothly
Weather at each end
AUS (origin)
Gusts 21 kt Ceiling 1,300 ft Visibility 10+ mi Precip none
BOS (destination)
Gusts 11 kt Ceiling 600 ft Visibility 1.5 mi Precip 0.01 in
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.