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Flight Reliability

UA 5866 · United Airlines

LNK → Denver (LNK–DEN)

96
Nerd Approved
WanderNerd Reliability Score
89%
Arrive within 15 minutes
4 min
Average arrival delay
0.3%
Cancelled
18 min early
Median arrival delay

Based on 359 historical flights. Data through May 2026.

What the data says

Thursday is the weak spot.

UA 5866 arrived on time 92% of the time on Mondays. On Thursdays: 82%.

Better than the LNK–DEN route average.

UA 5866 arrived on time 89% of the time, versus 79% across the LNK–DEN route.

Better than the United Airlines network average.

UA 5866 arrived on time 89% of the time, versus 79% across the United Airlines network.

It basically never cancels.

Out of 359 scheduled flights, only 0.3% were cancelled.

The breakdown

On-time by weekday
  • Mon92%(52 flights)
  • Tue89%(52 flights)
  • Wed92%(51 flights)
  • Thu82%(51 flights)
  • Fri90%(51 flights)
  • Sat88%(49 flights)
  • Sun90%(52 flights)
On-time trend by month
93%
May

Jun 79% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%29
July 202597%30
August 202581%31
September 202593%30
October 2025100%31
November 202593%29
December 202590%31
January 202687%31
February 202693%27
March 202674%31
April 202690%30
May 202693%28
Departures on time
89%
Diverted
0%
Flights flown
358
Months covered
12

Same route, other flights

Keep nerding

Based on 359 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.