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Flight Reliability

UA 5102 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5102 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

86%
Arrive within 15 minutes
5 min early
Average arrival delay
1.4%
Cancelled
15 min early
Median arrival delay

Based on 355 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(65 flights)
  • Tue85%(13 flights)
  • Wed88%(64 flights)
  • Thu89%(62 flights)
  • Fri84%(63 flights)
  • Sat92%(13 flights)
  • Sun94%(65 flights)
On-time by departure window
  • 6–9 AM87%(273 flights)
  • 9 AM–12 PM87%(46 flights)
  • 12–3 PM76%(25 flights)
  • 3–6 PM—(1 flights)
On-time trend by month
91%
May

Jun 79% → May 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%29
July 202584%44
August 202583%35
September 202598%48
October 202588%41
November 202595%20
December 202582%22
January 202675%20
February 202680%20
March 202686%21
April 202686%22
May 202691%23
Departures on time
88%
Diverted
1.4%
Flights flown
345
Months covered
12

Keep nerding

Based on 355 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.