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Flight Reliability

UA 2131 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2131 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

82%
Arrive within 15 minutes
5 min
Average arrival delay
1.5%
Cancelled
7 min early
Median arrival delay

Based on 400 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(58 flights)
  • Tue74%(50 flights)
  • Wed82%(50 flights)
  • Thu76%(59 flights)
  • Fri85%(60 flights)
  • Sat84%(57 flights)
  • Sun80%(59 flights)
On-time by departure window
  • 6–9 AM83%(57 flights)
  • 12–3 PM78%(105 flights)
  • 3–6 PM85%(52 flights)
  • 6–9 PM70%(60 flights)
  • 9 PM–12 AM89%(119 flights)
On-time trend by month
93%
May

Jun 93% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%27
July 202564%28
August 202585%26
September 202593%29
October 202594%49
November 202575%28
December 202585%46
January 202652%31
February 202665%26
March 202681%31
April 202687%30
May 202693%42
Departures on time
85%
Diverted
0.3%
Flights flown
393
Months covered
12

Keep nerding

Based on 400 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.