About 1 in 6 DL 1238 flights from Portland arrived 15+ minutes late, diverted or cancelled over the past year (16%); 5.4% were cancelled. The typical flight landed 11 minutes early.
DL 1238: PDX → SLC
Scheduled to leave Portland at 7:20 p.m. local time. Over the past year it arrived on time 84% of the time (148 flights), in line with other DL flights on the route at that hour (87%). Last seen in the data Aug 30, 2026.
Usually Delta Air Lines's last flight of the day from Portland to Salt Lake City (100% of days). Delta Air Lines's last PDX–SLC flight was cancelled 2.2% of the time, against 1.3% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 5:45 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 26 | 88% |
| Tuesday | 22 | 91% |
| Wednesday | 20 | 95% |
| Thursday | 24 | 83% |
| Friday | 26 | 85% |
| Saturday | 3 | — |
| Sunday | 27 | 74% |
Why it was late
All flights PDX → SLC · Connecting off DL 1238? Check the risk
DL 1238: SLC → PDX
Scheduled to leave Salt Lake City at 5:10 p.m. local time. Over the past year it arrived on time 78% of the time (148 flights), worse than other DL flights on the route at that hour (82%). Last seen in the data Aug 30, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 26 | 85% |
| Tuesday | 22 | 86% |
| Wednesday | 20 | 95% |
| Thursday | 24 | 75% |
| Friday | 26 | 73% |
| Saturday | 3 | — |
| Sunday | 27 | 70% |
Why it was late
All flights SLC → PDX · Connecting off DL 1238? Check the risk
Questions
How often is DL 1238 from PDX to SLC late?
Delta Air Lines 1238 from Portland, OR to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 16% of 148 scheduled flights between September 2025 and August 2026. 5.4% were cancelled.
How often is DL 1238 from SLC to PDX late?
Delta Air Lines 1238 from Salt Lake City, UT to Portland, OR arrived 15 or more minutes late, was diverted or was cancelled on 22% of 148 scheduled flights between September 2025 and August 2026. 5.4% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.