Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1143
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5
DL 1143 · LAX → IAH
departs 9:40 AM PT · arrives 3:04 PM CT
Forecast issued Sat 5:00 PM ET · 44h before departure
Watch this flight
Other days
Today 15%
Sun 10/4 25%
Mon 10/5
Tue 10/6 13%
Wed 10/7 14%
Thu 10/8 16%
Fri 10/9 17%
Odds over time
Arrive at IAH more than 15 minutes late?
10%
chance · ±2 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
10%
Leave 15+ late
16%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.5d
Now
1d
12h
6h
Departs
Lands
Arrive at IAH more than 15 minutes late?
Calm-weather odds: 9% · changed −2 pts in 24h
−2 pts
10%
Yes 10%
No 90%
Leave LAX more than 15 minutes late?
Calm-weather odds: 15% · changed +0 pts in 24h
+0 pts
16%
Yes 16%
No 84%
Arrive at IAH more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to IAH?
On time or early
89%
15–30 min late
2%
30 min–1 hour late
4%
1–2 hours late
2%
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
↑
9am departures from LAX are often late
↑
LAX is prone to delays
↑
IAH is prone to delays
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at LAX
Weather at each end
LAX (origin)
Gusts 16 kt Ceiling none (clear) Visibility 10+ mi Precip none
IAH (destination)
Gusts 18 kt Ceiling 4,500 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.