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.
SOUTHWEST · FLIGHT WN 1139
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
WN 1139 · BZN → SAN
departs 1:50 PM MT · arrives 3:30 PM PT
Forecast issued Sun 9:00 AM ET · 31h before departure
Watch this flight
Other days
Today 35%
Mon 10/5
Fri 10/9 32%
Odds over time
Arrive at SAN more than 15 minutes late?
22%
chance · ±1 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
22%
Leave 15+ late
28%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.7d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SAN more than 15 minutes late?
Calm-weather odds: 17% · changed −2 pts in 24h
−2 pts
22%
Yes 22%
No 78%
Leave BZN more than 15 minutes late?
Calm-weather odds: 24% · changed +1 pt in 24h
+1 pt
28%
Yes 28%
No 72%
Arrive at SAN more than an hour late?
Calm-weather odds: 4% · 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 SAN?
On time or early
77%
15–30 min late
12%
30 min–1 hour late
6%
1–2 hours late
3%
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
↑
SAN is prone to delays
↑
This flight has been late 22% of the time recently
↑
Arrivals into SAN at that hour are often late
↓
Mostly benign weather forecast at BZN
↓
Mondays in October are usually quieter than average
Weather at each end
BZN (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
SAN (destination)
Gusts 17 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.