Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1737
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
WN 1737 · DEN → SLC
departs 8:55 PM MT · arrives 10:40 PM MT
Forecast issued Thu 6:00 AM ET · 17h before departure
Watch this flight
Other days
Today
Fri 10/2 38%
Sat 10/3 22%
Sun 10/4 26%
Mon 10/5 23%
Tue 10/6 17%
Wed 10/7 15%
Odds over time
Arrive at SLC more than 15 minutes late?
30%
chance · ±11 pts
+0 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
45%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 25% · changed +0 pts in 24h
+0 pts
30%
Yes 30%
No 70%
Leave DEN more than 15 minutes late?
Calm-weather odds: 43% · changed −2 pts in 24h
−2 pts
45%
Yes 45%
No 55%
Arrive at SLC more than an hour late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to SLC?
On time or early
70%
15–30 min late
14%
30 min–1 hour late
9%
1–2 hours late
5%
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
↑
8pm departures from DEN are often late
↑
Later flights pick up delays from earlier in the day
↑
This flight has been late 44% of the time recently
↓
Other factors
↓
Mostly benign weather forecast at DEN
Weather at each end
DEN (origin)
Gusts 23 kt Ceiling 9,000 ft Visibility 10+ mi Precip none
SLC (destination)
Gusts 11 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.