Schedule: the flights that flew on Thursday, Oct 22, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 2919
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 29 Yesterday
DL 2919 · BOS → SFO
departs 8:55 PM ET · arrives 12:33 AM PT
Forecast issued Thu 11:00 PM ET · 2h after departure
Watch this flight
Other days
Thu 10/29
Today 40%
Sun 11/1 41%
Mon 11/2 32%
Odds over time
Arrive at SFO more than 15 minutes late?
30%
chance · ±1 pts
+4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
30%
Leave 15+ late
31%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.9d
2d
1d
12h
6h
Departs
Now
Lands
Arrive at SFO more than 15 minutes late?
Calm-weather odds: 30% · changed +4 pts in 24h
+4 pts
30%
Yes 30%
No 70%
Leave BOS more than 15 minutes late?
Calm-weather odds: 31% · changed +2 pts in 24h
+2 pts
31%
Yes 31%
No 69%
Arrive at SFO more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SFO?
On time or early
70%
15–30 min late
7%
30 min–1 hour late
17%
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
↑
8pm departures from BOS are often late
↑
This flight has been late 30% of the time recently
↑
Arrivals into SFO at that hour are often late
↓
Mostly benign weather forecast at SFO
↓
Mostly benign weather forecast at BOS
Weather at each end
BOS (origin)
Gusts 24 kt Ceiling none (clear) Visibility 10+ mi Precip none
SFO (destination)
Gusts 9 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.