Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 2166
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 2166 · LAX → BOS
departs 3:20 PM PT · arrives 11:51 PM ET
Forecast issued Thu 5:00 PM ET · 49h before departure
Watch this flight
Other days
Today 25%
Fri 10/2 30%
Sat 10/3
Sun 10/4 29%
Mon 10/5 24%
Tue 10/6 17%
Wed 10/7 22%
Odds over time
Arrive at BOS more than 15 minutes late?
18%
chance · ±0 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
13%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.8d
Now
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 11% · changed – in 24h
–
18%
Yes 18%
No 82%
Leave LAX more than 15 minutes late?
Calm-weather odds: 10% · changed – in 24h
–
13%
Yes 13%
No 87%
Arrive at BOS more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to BOS?
On time or early
82%
15–30 min late
4%
30 min–1 hour late
9%
1–2 hours late
3%
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
↑
Arrivals into BOS at that hour are often late
↑
3pm departures from LAX are often late
↑
This flight has been late 22% of the time recently
↓
DL's recent on-time record
↓
Saturdays in October are usually quieter than average
Weather at each end
LAX (origin)
Gusts 14 kt Ceiling none (clear) Visibility 5 mi Precip none
BOS (destination)
Gusts 12 kt Ceiling 8,667 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.