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 640
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Yesterday
B6 640 · CLE → BOS
departs 4:38 PM ET · arrives 6:29 PM ET
Forecast issued Tue 10:00 PM ET · 5h after departure
Watch this flight
Other days
Tue 9/29
Today 45%
Thu 10/1 30%
Fri 10/2 43%
Sat 10/3 14%
Sun 10/4 42%
Mon 10/5 42%
Tue 10/6 24%
Odds over time
Arrive at BOS more than 15 minutes late?
56%
chance · ±0 pts
−5 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
56%
Leave 15+ late
43%
Arrive 1h+ late
39%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 56% · changed −5 pts in 24h
−5 pts
56%
Yes 56%
No 44%
Leave CLE more than 15 minutes late?
Calm-weather odds: 43% · changed −4 pts in 24h
−4 pts
43%
Yes 43%
No 57%
Arrive at BOS more than an hour late?
Calm-weather odds: 39% · changed +0 pts in 24h
+0 pts
39%
Yes 39%
No 61%
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
44%
15–30 min late
20%
30 min–1 hour late
0%
1–2 hours late
30%
Over 2 hours late
6%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into BOS at that hour are often late
↑
B6's recent on-time record
↑
Cloud base down to 600 ft, visibility down to 1.5 mi forecast at BOS that day
↓
Mostly benign weather forecast at CLE
↓
Tuesdays in September are usually quieter than average
Weather at each end
CLE (origin)
Gusts 7 kt Ceiling none (clear) Visibility 10+ mi Precip none
BOS (destination)
Gusts 11 kt Ceiling 600 ft Visibility 1.5 mi Precip 0.03 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.