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Flight Reliability

UA 310 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 310 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

80%
Arrive within 15 minutes
10 min
Average arrival delay
0.4%
Cancelled
3 min early
Median arrival delay

Based on 459 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(71 flights)
  • Tue94%(70 flights)
  • Wed77%(69 flights)
  • Thu77%(66 flights)
  • Fri80%(64 flights)
  • Sat81%(52 flights)
  • Sun69%(64 flights)
On-time by departure window
  • 6–9 AM96%(22 flights)
  • 9 AM–12 PM89%(107 flights)
  • 12–3 PM81%(131 flights)
  • 3–6 PM69%(128 flights)
  • 6–9 PM78%(68 flights)
On-time trend by month
82%
Feb

Jun 83% → Feb 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%71
July 202572%61
August 202585%60
September 202585%59
October 202578%58
November 202574%53
December 202566%32
January 202693%30
February 202682%28
Departures on time
82%
Diverted
0.2%
Flights flown
456
Months covered
10

Keep nerding

Based on 459 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.