Schedule: the flights that flew on Tuesday, Oct 20, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 4639
SCHEDULED · TYPICAL SCHEDULE
Tuesday, October 27 Today
OO 4639 · BOI → SFO
departs 8:13 AM MT · arrives 9:14 AM PT
Forecast issued Tue 2:00 AM ET · 8h before departure
Watch this flight
Other days
Today
Wed 10/28 16%
Thu 10/29 14%
Fri 10/30 31%
Sat 10/31 24%
Sun 11/1 35%
Mon 11/2 38%
Odds over time
Arrive at SFO more than 15 minutes late?
29%
chance · ±0 pts
+17 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
29%
Leave 15+ late
21%
Arrive 1h+ late
11%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.4d
2d
1d
12h
Now
Departs
Lands
Arrive at SFO more than 15 minutes late?
Calm-weather odds: 13% · changed +17 pts in 24h
+17 pts
29%
Yes 29%
No 71%
Leave BOI more than 15 minutes late?
Calm-weather odds: 17% · changed +6 pts in 24h
+6 pts
21%
Yes 21%
No 79%
Arrive at SFO more than an hour late?
Calm-weather odds: 5% · changed +5 pts in 24h
+5 pts
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: <1% · changed +1 pt in 24h
+1 pt
1%
Yes 1%
No 99%
How late will it get to SFO?
On time or early
70%
15–30 min late
12%
30 min–1 hour late
5%
1–2 hours late
4%
Over 2 hours late
7%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into SFO at that hour are often late
↑
SFO is prone to delays
↑
This flight has been late 44% of the time recently
↓
BOI usually runs smoothly
↓
8am departures from BOI are usually not late
Weather at each end
BOI (origin)
Gusts 10 kt Ceiling 7,000 ft Visibility 10+ mi Precip none
SFO (destination)
Gusts 22 kt Ceiling none (clear) Visibility 10+ 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.