Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 5501 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5501 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

87%
Arrive within 15 minutes
1 min early
Average arrival delay
1.6%
Cancelled
11 min early
Median arrival delay

Based on 317 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(46 flights)
  • Tue93%(44 flights)
  • Wed93%(42 flights)
  • Thu89%(44 flights)
  • Fri83%(46 flights)
  • Sat83%(41 flights)
  • Sun81%(48 flights)
On-time by departure window
  • 6–9 AM92%(85 flights)
  • 9 AM–12 PM77%(39 flights)
  • 12–3 PM85%(144 flights)
  • 3–6 PM95%(38 flights)
  • 6–9 PM—(5 flights)
On-time trend by month
96%
May

Jun 93% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202597%30
August 202581%31
September 202587%30
October 202596%28
November 202590%20
December 202596%28
January 202681%31
February 202679%28
March 202666%29
May 202696%22
Departures on time
88%
Diverted
0.3%
Flights flown
311
Months covered
12

Keep nerding

Based on 317 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.