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Flight Reliability

UA 2172 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2172 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

83%
Arrive within 15 minutes
1 min
Average arrival delay
0.8%
Cancelled
8 min early
Median arrival delay

Based on 353 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(52 flights)
  • Tue81%(53 flights)
  • Wed85%(54 flights)
  • Thu87%(55 flights)
  • Fri78%(55 flights)
  • Sat74%(34 flights)
  • Sun85%(47 flights)
On-time by departure window
  • 6–9 AM87%(111 flights)
  • 9 AM–12 PM87%(125 flights)
  • 3–6 PM72%(112 flights)
  • 6–9 PM—(2 flights)
On-time trend by month
100%
May

Jun 91% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%21
July 202548%25
August 202577%30
September 202583%18
October 202583%30
November 202586%28
December 202580%46
January 202678%50
February 202688%25
March 202684%25
April 2026100%26
May 2026100%26
Departures on time
87%
Diverted
0%
Flights flown
350
Months covered
12

Keep nerding

Based on 353 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.