Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 5587 · United Airlines

MRY → Denver (MRY–DEN)97% of its flights flew this route. The rest (OMA–ORD, ORD–CMH) are included in these numbers.

100
Nerd Approved
WanderNerd Reliability Score
96%
Arrive within 15 minutes
10 min early
Average arrival delay
0%
Cancelled
16 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Tuesday comes out ahead.

A small edge: 98% on time on Tuesdays against 92% on Saturdays.

Well ahead of the United Airlines network.

UA 5587 arrived on time 96% of the time, versus 79% across the United Airlines network.

It basically never cancels.

Out of 364 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon96%(52 flights)
  • Tue98%(52 flights)
  • Wed98%(51 flights)
  • Thu94%(52 flights)
  • Fri98%(51 flights)
  • Sat92%(52 flights)
  • Sun96%(53 flights)
On-time by departure window
  • 3–6 AM97%(352 flights)
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM—(9 flights)
On-time trend by month
94%
May

Jun 93% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 2025100%31
August 202594%31
September 202597%30
October 2025100%31
November 202597%30
December 202593%30
January 202697%31
February 202696%27
March 202697%31
April 202697%30
May 202694%31
Departures on time
95%
Diverted
0.3%
Flights flown
363
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.