Best Time to Fly SLC to MCI: On-Time Stats by Hour & Airline
Salt Lake City International → Kansas City International
Data through July 2026 · Last updated October 18, 2026
1,009 flights were scheduled from Salt Lake City (SLC) to Kansas City (MCI) in the last 12 months, and 85.6% of those that flew arrived on time, 8.0 points above the US average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (88% on time) and August the worst month (76%).
The cancellation rate was 1.0% (US average 1.8%).
SLC to MCI 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 | 85.6% | 58 min | 1.0% | 1,009 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SLC to MCI
On-time arrival % by scheduled departure hour (local time), 1,991 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 89.7% | 0.4% | 472 |
| 10am–11am | 87.7% | 0.8% | 254 |
| 11am–12pm | Limited data | 4 | |
| 1pm–2pm | 82.7% | 0.9% | 328 |
| 2pm–3pm | 82.6% | 0.0% | 138 |
| 3pm–4pm | 78.8% | 2.9% | 68 |
| 5pm–6pm | 83.8% | 0.5% | 193 |
| 6pm–7pm | Limited data | 16 | |
| 8pm–9pm | 80.0% | 0.5% | 368 |
| 9pm–10pm | 73.6% | 4.0% | 150 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SLC to MCI
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) | 69.4% | -16.5 pts | 0.0% | 36 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.5% | -9.4 pts | 1.2% | 82 |
| Summer peak (Jun 15 - Aug 15) | 76.9% | -9.0 pts | 0.6% | 363 |
| All other days | 86.0% | — | 1.0% | 1,510 |
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).