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Flight Reliability

UA 4265 · United Airlines

Washington → CHO (IAD–CHO)94% of its flights flew this route. The rest (ICT–IAH, IAD–GSO) are included in these numbers.

66
Usually Fine
WanderNerd Reliability Score
80%
Arrive within 15 minutes
28 min
Average arrival delay
3.3%
Cancelled
3 min early
Median arrival delay

Based on 301 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

UA 4265 arrived on time 85% of the time on Saturdays. On Sundays: 76%.

Keep a backup plan handy.

UA 4265 was cancelled 3.3% of the time. Typical for U.S. flights is around 1–2%.

Slipping a little lately.

UA 4265 arrived on time 78% of the time over the last three months in the data, compared with 83% in the three months before that.

The breakdown

On-time by weekday
  • Mon84%(44 flights)
  • Tue82%(33 flights)
  • Wed78%(32 flights)
  • Thu79%(43 flights)
  • Fri76%(42 flights)
  • Sat85%(48 flights)
  • Sun76%(49 flights)
On-time by departure window
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM—(6 flights)
  • 6–9 PM—(3 flights)
  • 9 PM–12 AM80%(273 flights)
On-time trend by month
87%
May

Jun 56% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202556%27
July 202567%27
August 202584%31
September 202597%30
October 202583%29
November 202591%23
December 202579%14
January 202682%11
February 202690%19
March 202671%28
April 202676%21
May 202687%31
Departures on time
81%
Diverted
0%
Flights flown
291
Months covered
12

Same route, other flights

Keep nerding

Based on 301 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.