Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 2663
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
DL 2663 · DEN → SLC
departs 7:09 PM MT · arrives 8:49 PM MT
Forecast issued Wed 4:00 AM ET · 17h before departure
Watch this flight
Other days
Today
Thu 10/1 28%
Fri 10/2 28%
Sat 10/3 22%
Sun 10/4 26%
Mon 10/5 21%
Tue 10/6 14%
Odds over time
Arrive at SLC more than 15 minutes late?
42%
chance · ±6 pts
−18 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
42%
Leave 15+ late
43%
Arrive 1h+ late
9%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
2.9d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 22% · changed −18 pts in 24h
−18 pts
42%
Yes 42%
No 58%
Leave DEN more than 15 minutes late?
Calm-weather odds: 19% · changed −15 pts in 24h
−15 pts
43%
Yes 43%
No 57%
Arrive at SLC more than an hour late?
Calm-weather odds: 3% · changed −7 pts in 24h
−7 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 99%
How late will it get to SLC?
On time or early
57%
15–30 min late
18%
30 min–1 hour late
15%
1–2 hours late
5%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
7pm departures from DEN are often late
↑
Mostly benign weather forecast at DEN
↑
Later flights pick up delays from earlier in the day
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at SLC
Weather at each end
DEN (origin)
Gusts 19 kt Ceiling 4,500 ft Visibility 8 mi Precip 0.11 in
SLC (destination)
Gusts 16 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.