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 1691
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5
DL 1691 · MCO → SLC
departs 7:25 PM ET · arrives 10:11 PM MT
Forecast issued Sat 1:00 PM ET · 54h before departure
Watch this flight
Other days
Today 52%
Sun 10/4 33%
Mon 10/5
Tue 10/6 8%
Wed 10/7 10%
Thu 10/8 21%
Fri 10/9 23%
Odds over time
Arrive at SLC more than 15 minutes late?
30%
chance · ±5 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
28%
Arrive 1h+ late
10%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.8d
Now
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 16% · changed – in 24h
–
30%
Yes 30%
No 70%
Leave MCO more than 15 minutes late?
Calm-weather odds: 12% · changed – in 24h
–
28%
Yes 28%
No 72%
Arrive at SLC more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
2%
Yes 2%
No 98%
How late will it get to SLC?
On time or early
69%
15–30 min late
13%
30 min–1 hour late
6%
1–2 hours late
6%
Over 2 hours late
4%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 400 ft, 0.5 in of rain forecast at MCO that day
↑
7pm departures from MCO are often late
↑
Later flights pick up delays from earlier in the day
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at SLC
Weather at each end
MCO (origin)
Gusts 10 kt Ceiling 400 ft Visibility 5 mi Precip 0.47 in
SLC (destination)
Gusts 14 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.