Schedule: a typical summer Sunday (the flights of Jul 26, 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
Sunday, October 4
DL 1691 · MCO → SLC
departs 7:25 PM ET · arrives 10:11 PM MT
Forecast issued Fri 11:00 AM ET · 56h before departure
Watch this flight
Other days
Today 53%
Sat 10/3 21%
Sun 10/4
Mon 10/5 16%
Tue 10/6 8%
Wed 10/7 11%
Thu 10/8 21%
Odds over time
Arrive at SLC more than 15 minutes late?
31%
chance · ±3 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
31%
Leave 15+ late
32%
Arrive 1h+ late
11%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 23% · changed – in 24h
–
31%
Yes 31%
No 69%
Leave MCO more than 15 minutes late?
Calm-weather odds: 21% · changed – in 24h
–
32%
Yes 32%
No 68%
Arrive at SLC more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
1%
Yes 1%
No 99%
How late will it get to SLC?
On time or early
68%
15–30 min late
10%
30 min–1 hour late
11%
1–2 hours late
6%
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
↑
Mostly benign weather forecast at MCO
↑
7pm departures from MCO are often late
↑
Later flights pick up delays from earlier in the day
↓
Sundays in October are usually quieter than average
↓
Mostly benign weather forecast at SLC
Weather at each end
MCO (origin)
Gusts 13 kt Ceiling 8,000 ft Visibility 10+ mi Precip 0.13 in
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.