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Flight Reliability

UA 5066 · United Airlines

Los Angeles → PRC (LAX–PRC)81% of its flights flew this route. The rest (PRC–DEN, PRC–LAX) are included in these numbers.

73
Usually Fine
WanderNerd Reliability Score
81%
Arrive within 15 minutes
32 min
Average arrival delay
0.8%
Cancelled
8 min early
Median arrival delay

Based on 400 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 5066 departing between 9 AM–12 PM arrived on time 88% of the time, versus 77% between 3–6 PM.

Friday is doing you no favors.

UA 5066 arrived on time 88% of the time on Tuesdays. On Fridays: 77%.

Trending in the right direction.

UA 5066 arrived on time 87% of the time over the last three months in the data, compared with 76% in the three months before that.

The breakdown

On-time by weekday
  • Mon79%(57 flights)
  • Tue88%(56 flights)
  • Wed84%(57 flights)
  • Thu82%(54 flights)
  • Fri77%(56 flights)
  • Sat77%(57 flights)
  • Sun78%(59 flights)
On-time by departure window
  • 9 AM–12 PM88%(16 flights)
  • 12–3 PM81%(198 flights)
  • 3–6 PM77%(60 flights)
  • 6–9 PM80%(122 flights)
On-time trend by month
87%
May

Jun 62% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%29
July 202563%30
August 202581%31
September 202590%30
October 202584%37
November 202590%58
December 202581%32
January 202671%31
February 202675%28
March 202693%30
April 202679%29
May 202687%31
Departures on time
79%
Diverted
0.3%
Flights flown
396
Months covered
12

Same route, other flights

Keep nerding

Based on 400 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.