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Flight Reliability

UA 5683 · United Airlines

Salt Lake City → Denver (SLC–DEN)80% of its flights flew this route. The rest (MAF–IAH, IAH–MEM) are included in these numbers.

100
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
10 min early
Average arrival delay
0.6%
Cancelled
15 min early
Median arrival delay

Based on 330 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 3–6 AM arrived on time 95% of the time, against 88% between 9 AM–12 PM.

Friday is doing you no favors.

UA 5683 arrived on time 98% of the time on Mondays. On Fridays: 89%.

Well ahead of the SLC–DEN route.

UA 5683 arrived on time 94% of the time, versus 77% across the SLC–DEN route.

Well ahead of the United Airlines network.

UA 5683 arrived on time 94% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon98%(51 flights)
  • Tue96%(49 flights)
  • Wed96%(48 flights)
  • Thu94%(49 flights)
  • Fri89%(45 flights)
  • Sat97%(37 flights)
  • Sun90%(49 flights)
On-time by departure window
  • 3–6 AM95%(264 flights)
  • 9 AM–12 PM88%(34 flights)
  • 12–3 PM93%(30 flights)
On-time trend by month
100%
May

Jun 93% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202590%31
August 2025100%31
September 2025100%28
October 202596%24
November 202588%24
December 202595%20
January 202692%25
February 202687%23
March 202697%31
April 202690%30
May 2026100%31
Departures on time
92%
Diverted
0%
Flights flown
328
Months covered
12

Same route, other flights

Keep nerding

Based on 330 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.