Kansas City (MCI) to Salt Lake City (SLC): On-Time Performance
Data through July 2026
Kansas City (MCI) to Salt Lake City (SLC) effectively runs on two schedules. In October 2024, 95% of arrivals were on time; in December 2025 that fell to 76% — a 19-point seasonal swing. Across the full period the route averages 88% on-time against a national 78%. Morning departures also hold up better than evening ones (93% vs 84%), which matters most in the rough months.
- On-time
- 88%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 2.8
- last 12 months
- Duration
- 2h 44m
- scheduled
- Distance
- 920 mi
Monthly on-time trend
Best time to fly from MCI to SLC
Aim for departures around 8 a.m. (97% on-time); avoid 5 p.m. departures (82%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 85% | 11 min |
| Tuesdaybest | 90% | 7 min |
| Wednesday | 90% | 8 min |
| Thursday | 88% | 9 min |
| Friday | 89% | 11 min |
| Saturday | 88% | 11 min |
| Sunday | 85% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft59%
- Airline operations26%
- National airspace system12%
- Weather3%
Frequently asked questions
- How often are flights from MCI to SLC delayed?
- 12% of MCI–SLC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 9 minutes.
- What is the best time of day to fly from MCI to SLC?
- Departures around 8 a.m. have the best record (97% on-time), while departures around 5 p.m. have the worst (82%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MCI to SLC?
- The scheduled MCI–SLC flight time averages 2h 44m over 920 miles. Actual arrival times vary — flights on this route land 15+ minutes late 12% of the time.
- How often are MCI to SLC flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from MCI to SLC?
- December 2025 was the roughest month in this dataset, with only 76% of arrivals on time. The best was October 2024 at 95%. If your dates are flexible, that 19-point gap is worth planning around.
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Based on 2,078 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.