Route · MCI → SLC · 2020–2025 BTS data
Kansas City to Salt Lake City
The MCI–SLC corridor (Kansas City, MO → Salt Lake City, UT) runs ahead of the national average, served by 4 carriers across roughly 920 miles.
Data updated 2026-06-13
- 89%
- On-time
- +10 pts
- vs US avg
- 90 min
- Delay when late
- 5,667
- Flights
Cancelled
1.0%
Best Month
Oct 2024 95%
Worst Month
Dec 2025 77%
Distance
920 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 90 | 21 | 1 | 0 | DL |
| Nov 2025 | 87 | 18 | 0 | 0 | DL |
| Oct 2025 | 91 | 15 | 0 | 1 | DL |
| Sep 2025 | 85 | 7 | 0 | 0 | DL |
| Aug 2025 | 91 | 8 | 1 | 0 | DL |
| Jul 2025 | 92 | 11 | 1 | 0 | DL |
| Jun 2025 | 89 | 9 | 1 | 0 | DL |
| May 2025 | 87 | 8 | 0 | 0 | DL |
| Apr 2025 | 84 | 7 | 1 | 0 | DL |
| Mar 2025 | 80 | 9 | 0 | 0 | DL |
| Feb 2025 | 65 | 15 | 0 | 0 | DL |
| Jan 2025 | 70 | 7 | 6 | 0 | DL |
| Dec 2024 | 83 | 5 | 0 | 0 | DL |
| Nov 2024 | 82 | 13 | 0 | 0 | DL |
| Oct 2024 | 84 | 4 | 0 | 0 | DL |
| Sep 2024 | 81 | 10 | 0 | 0 | DL |
| Aug 2024 | 85 | 11 | 0 | 1 | DL |
| Jul 2024 | 87 | 11 | 8 | 0 | DL |
| Jun 2024 | 83 | 10 | 0 | 0 | DL |
| May 2024 | 79 | 6 | 0 | 0 | DL |
| Apr 2024 | 77 | 9 | 0 | 1 | DL |
| Mar 2024 | 80 | 8 | 0 | 0 | DL |
| Feb 2024 | 66 | 7 | 0 | 0 | DL |
| Jan 2024 | 74 | 13 | 1 | 0 | DL,OO |
Cancellation Rate
1.0%
20 of 1,972 flights
Diversion Rate
0.2%
3 of 1,972 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MCI - Kansas City
Full on-time, delay-cause, and seasonal performance for Kansas City, MO.
Origin airport →SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Destination airport →Compare the two airports
See MCI and SLC side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to MCI–SLC.
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What the Data Says About MCI to SLC
Kansas City to Salt Lake City (MCI to SLC) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89% on-time rate across 5,667 flights, with delays that do happen averaging 90.2 minutes. The corridor runs roughly 920 miles and is served by 4 carriers. Over the most recent 24 months, 20 of 1,972 flights were cancelled (1.0%) and 3 diverted (0.2%).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 95% on-time, while Dec 2025 came in at just 77% - a 19-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.