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 257
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Yesterday
B6 257 · BOS → BZN
departs 8:43 AM ET · arrives 11:42 AM MT
Forecast issued Wed 10:00 PM ET · 13h after departure
Watch this flight
Other days
Wed 9/30
Today 21%
Fri 10/2 15%
Sat 10/3 16%
Sun 10/4 16%
Mon 10/5 14%
Tue 10/6 12%
Wed 10/7 12%
Odds over time
Arrive at BZN more than 15 minutes late?
15%
chance · ±0 pts
+4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
15%
Leave 15+ late
15%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at BZN more than 15 minutes late?
Calm-weather odds: 15% · changed +4 pts in 24h
+4 pts
15%
Yes 15%
No 85%
Leave BOS more than 15 minutes late?
Calm-weather odds: 15% · changed +3 pts in 24h
+3 pts
15%
Yes 15%
No 85%
Arrive at BZN more than an hour late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BZN?
On time or early
84%
15–30 min late
4%
30 min–1 hour late
6%
1–2 hours late
4%
Over 2 hours late
2%
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
↑
Cloud base down to 700 ft, visibility down to 2 mi forecast at BOS that day
↑
This flight has been late 26% of the time recently
↓
BZN usually runs smoothly
↓
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
BZN (destination)
Gusts 20 kt Ceiling 7,500 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.