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Flight Reliability

UA 3534 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3534 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

79%
Arrive within 15 minutes
9 min
Average arrival delay
5.2%
Cancelled
8 min early
Median arrival delay

Based on 345 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(43 flights)
  • Tue85%(46 flights)
  • Wed79%(47 flights)
  • Thu81%(48 flights)
  • Fri79%(47 flights)
  • Sat85%(46 flights)
  • Sun63%(49 flights)
On-time by departure window
  • 6–9 AM64%(11 flights)
  • 9 AM–12 PM83%(138 flights)
  • 12–3 PM84%(38 flights)
  • 3–6 PM73%(26 flights)
  • 6–9 PM76%(113 flights)
On-time trend by month
67%
May

Jun 76% → May 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 202558%24
August 202586%29
September 202579%29
October 202587%31
November 202579%28
December 202580%30
January 202690%29
February 202696%25
March 202674%31
April 202672%29
May 202667%12
Departures on time
84%
Diverted
0.3%
Flights flown
326
Months covered
12

Keep nerding

Based on 345 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.