Schedule: the flights that flew on Tuesday, Oct 6, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
CATHAY PACIFIC · FLIGHT CX 811
SCHEDULED · TYPICAL SCHEDULE
Tuesday, October 13
CX 811 · BOS → HKG
departs 1:45 AM ET · arrives 4:42 AM HKT
Forecast issued Sun 7:00 AM ET · 43h before departure
Watch this flight
Other days
Today 15%
Mon 10/12 19%
Tue 10/13
Wed 10/14 15%
Thu 10/15 14%
Fri 10/16 14%
Sat 10/17 18%
Odds over time
Arrive at HKG more than 15 minutes late?
13%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
13%
Leave 15+ late
12%
Arrive 1h+ late
2%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.1d
Now
1d
12h
6h
Departs
Lands
Arrive at HKG more than 15 minutes late?
Calm-weather odds: 9% · changed +1 pt in 24h
+1 pt
13%
Yes 13%
No 87%
Leave BOS more than 15 minutes late?
Calm-weather odds: 9% · changed +2 pts in 24h
+2 pts
12%
Yes 12%
No 88%
Arrive at HKG more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to HKG?
On time or early
86%
15–30 min late
7%
30 min–1 hour late
3%
1–2 hours late
1%
Over 2 hours late
<1%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This route's recent record
↑
BOS is busy at that time
↑
CX's recent on-time record
↓
Mostly benign weather forecast at HKG
↓
Tuesdays in October are usually quieter than average
Weather at each end
BOS (origin)
Gusts 17 kt Ceiling 300 ft Visibility 4 mi Precip 0.01 in
HKG (destination)
Gusts 8 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.