Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 1238
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
DL 1238 · SLC → PDX
departs 5:25 PM MT · arrives 6:18 PM PT
Forecast issued Tue 10:00 PM ET · 3h after departure
Watch this flight
Other days
Today
Wed 9/30 14%
Thu 10/1 11%
Fri 10/2 14%
Sun 10/4 16%
Mon 10/5 11%
Odds over time
Arrive at PDX more than 15 minutes late?
13%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
13%
Leave 15+ late
13%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at PDX more than 15 minutes late?
Calm-weather odds: 13% · changed −2 pts in 24h
−2 pts
13%
Yes 13%
No 87%
Leave SLC more than 15 minutes late?
Calm-weather odds: 13% · changed +2 pts in 24h
+2 pts
13%
Yes 13%
No 87%
Arrive at PDX more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to PDX?
On time or early
86%
15–30 min late
4%
30 min–1 hour late
5%
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
↑
Later flights pick up delays from earlier in the day
↑
SLC is busy at that time
↑
Arrivals into PDX at that hour are often late
↓
Tuesdays in September are usually quieter than average
↓
This flight has been late 14% of the time recently
Weather at each end
SLC (origin)
Gusts 15 kt Ceiling 6,500 ft Visibility 10+ mi Precip none
PDX (destination)
Gusts 16 kt Ceiling 2,700 ft Visibility 7 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.