About 1 in 19 DL 4237 flights from St. George arrived 15+ minutes late, diverted or cancelled over the past year (5%); 0.0% were cancelled. The typical flight landed 11 minutes early.
DL 4237: SGU → SLC
Scheduled to leave St. George at 8:50 a.m. local time, operated by SkyWest as OO 4237. Over the past year it arrived on time 95% of the time (282 flights), in line with other DL flights on the route at that hour (95%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 42 | 98% |
| Tuesday | 40 | 93% |
| Wednesday | 40 | 100% |
| Thursday | 40 | 98% |
| Friday | 40 | 95% |
| Saturday | 40 | 83% |
| Sunday | 40 | 98% |
Why it was late
All flights SGU → SLC · Connecting off DL 4237? Check the risk
Questions
How often is DL 4237 from SGU to SLC late?
Delta Air Lines 4237 from St. George, UT to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 5% of 282 scheduled flights between September 2025 and August 2026. 0.0% 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.