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Flight Reliability

UA 4759 · United Airlines

Denver → FSD (DEN–FSD)99% of its flights flew this route. The rest (LAX–SFO, MSP–DEN) are included in these numbers.

92
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
3 min early
Average arrival delay
0.8%
Cancelled
10 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Friday is doing you no favors.

UA 4759 arrived on time 92% of the time on Tuesdays. On Fridays: 80%.

A bit ahead of the DEN–FSD route.

UA 4759 arrived on time 88% of the time, versus 81% across the DEN–FSD route.

Better than the United Airlines network average.

UA 4759 arrived on time 88% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon90%(52 flights)
  • Tue92%(52 flights)
  • Wed89%(52 flights)
  • Thu90%(51 flights)
  • Fri80%(51 flights)
  • Sat87%(52 flights)
  • Sun85%(52 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM88%(360 flights)
  • 12–3 PM—(1 flights)
On-time trend by month
87%
May

Jun 80% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202584%31
August 202577%31
September 202587%30
October 202594%31
November 202593%30
December 202577%30
January 202694%31
February 2026100%28
March 202690%30
April 202690%29
May 202687%31
Departures on time
85%
Diverted
0%
Flights flown
362
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.