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Flight Reliability

UA 2136 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2136 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

68%
Arrive within 15 minutes
20 min
Average arrival delay
1.6%
Cancelled
1 min early
Median arrival delay

Based on 446 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(62 flights)
  • Tue70%(63 flights)
  • Wed63%(62 flights)
  • Thu57%(62 flights)
  • Fri73%(62 flights)
  • Sat86%(62 flights)
  • Sun62%(65 flights)
On-time by departure window
  • 6–9 AM57%(23 flights)
  • 9 AM–12 PM68%(25 flights)
  • 12–3 PM—(7 flights)
  • 6–9 PM67%(329 flights)
  • 9 PM–12 AM82%(54 flights)
On-time trend by month
81%
May

Jun 49% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202549%35
July 202561%59
August 202568%31
September 202551%53
October 202552%31
November 202579%28
December 202586%29
January 202690%29
February 202691%23
March 202677%30
April 202668%59
May 202681%31
Departures on time
70%
Diverted
0.2%
Flights flown
438
Months covered
12

Keep nerding

Based on 446 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.