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Flight Reliability

UA 5772 · United Airlines

Aspen → Denver (ASE–DEN)95% of its flights flew this route. The rest (ORD–CID, ORD–GRR) are included in these numbers.

67
Usually Fine
WanderNerd Reliability Score
75%
Arrive within 15 minutes
10 min
Average arrival delay
3.8%
Cancelled
7 min early
Median arrival delay

Based on 313 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 5772 departing between 9 AM–12 PM arrived on time 76% of the time, versus 50% between 3–6 PM.

Mondays have been rough.

UA 5772 arrived on time 83% of the time on Saturdays and just 61% on Mondays. That gap is worth planning around.

A bit behind the United Airlines network.

UA 5772 arrived on time 75% of the time, versus 79% across the United Airlines network.

Keep a backup plan handy.

UA 5772 was cancelled 3.8% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon61%(44 flights)
  • Tue74%(39 flights)
  • Wed78%(45 flights)
  • Thu82%(44 flights)
  • Fri79%(42 flights)
  • Sat83%(41 flights)
  • Sun69%(45 flights)
On-time by departure window
  • 9 AM–12 PM76%(286 flights)
  • 3–6 PM50%(14 flights)
On-time trend by month
59%
May

Jun 41% → May 59% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202541%27
July 202579%29
August 202573%30
September 202587%30
October 202577%31
November 202593%28
December 202573%30
February 202658%19
March 202690%29
April 202686%22
May 202659%22
Departures on time
75%
Diverted
0.3%
Flights flown
300
Months covered
12

Same route, other flights

Keep nerding

Based on 313 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.