Skip to content
WanderNerd
Check a flight

Route Reliability

Kansas City → Salt Lake City

MCI–SLC · 920 miles · Kansas City International Airport to Salt Lake City International Airport

90
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
2 min early
Average arrival delay
1.2%
Cancelled
1,015
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 88% of the time across 1,015 flights. No comparison to make.

What the data says

Morning flights do better here.

MCI–SLC flights departing between 6–9 AM arrived on time 92% of the time, versus 69% between 3–6 PM.

Monday is the weak spot.

MCI–SLC flights arrived on time 92% of the time on Wednesdays. On Mondays: 84%.

Trending in the right direction.

MCI–SLC flights arrived on time 91% of the time over the last three months in the data, compared with 84% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon84%(146 flights)
  • Tue91%(144 flights)
  • Wed92%(144 flights)
  • Thu87%(145 flights)
  • Fri90%(144 flights)
  • Sat85%(128 flights)
  • Sun84%(149 flights)
On-time by departure window
  • 6–9 AM92%(358 flights)
  • 12–3 PM87%(358 flights)
  • 3–6 PM69%(39 flights)
  • 6–9 PM85%(245 flights)
On-time trend by month
94%
May

Jun 90% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%88
July 202588%91
August 202591%90
September 202592%85
October 202584%90
November 202579%87
December 202578%89
January 202688%65
February 202687%62
March 202689%83
April 202691%85
May 202694%85

Keep nerding

Based on 1,015 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.