Schedule: the flights that flew on Friday, Oct 23, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1551
SCHEDULED · TYPICAL SCHEDULE
Friday, October 30 Tomorrow
WN 1551 · DEN → BOI
departs 1:08 PM MT · arrives 3:05 PM MT
Forecast issued Thu 2:00 AM ET · 37h before departure
Watch this flight
Other days
Today 19%
Fri 10/30
Sat 10/31 18%
Sun 11/1 35%
Mon 11/2 27%
Odds over time
Arrive at BOI more than 15 minutes late?
19%
chance · ±2 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
27%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.6d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at BOI more than 15 minutes late?
Calm-weather odds: 19% · changed +1 pt in 24h
+1 pt
19%
Yes 19%
No 81%
Leave DEN more than 15 minutes late?
Calm-weather odds: 24% · changed +0 pts in 24h
+0 pts
27%
Yes 27%
No 73%
Arrive at BOI more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to BOI?
On time or early
81%
15–30 min late
7%
30 min–1 hour late
9%
1–2 hours late
2%
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
↑
This flight has been late 49% of the time recently
↑
1pm departures from DEN are often late
↑
WN's recent on-time record
↓
Mostly benign weather forecast at DEN
↓
DEN usually runs smoothly
Weather at each end
DEN (origin)
Gusts 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
BOI (destination)
Gusts 12 kt Ceiling 3,200 ft Visibility 9 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.