Best Time to Fly CMH to SLC: On-Time Stats by Hour & Airline
John Glenn Columbus International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 90.0% of Columbus (CMH) to Salt Lake City (SLC) flights arrived on time (363 scheduled flights). That is 12.4 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
August has been the best month (98% on time) and Saturday the weakest day of the week (86%).
0.6% of flights were cancelled, versus 1.8% nationally.
CMH to SLC on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 90.0% | 64 min | 0.6% | 363 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CMH to SLC
On-time arrival % by scheduled departure hour (local time), 728 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 89.2% | 0.4% | 491 |
| 8am–9am | 95.8% | 0.0% | 237 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CMH to SLC
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 29 | ||
| Summer peak (Jun 15 - Aug 15) | 95.1% | +3.5 pts | 0.8% | 124 |
| All other days | 91.6% | — | 0.2% | 561 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).