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Flight Reliability

UA 4546 · United Airlines

Chicago → AVP (ORD–AVP)80% of its flights flew this route. The rest (ORD–ROA, DAY–ORD) are included in these numbers.

48
Bring Snacks
WanderNerd Reliability Score
65%
Arrive within 15 minutes
29 min
Average arrival delay
3.9%
Cancelled
1 min early
Median arrival delay

Based on 363 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 4546 departing between 9 AM–12 PM arrived on time 95% of the time, versus 41% between 3–6 PM.

Wednesday is the weak spot.

UA 4546 arrived on time 74% of the time on Tuesdays. On Wednesdays: 62%.

A bit behind the ORD–AVP route.

UA 4546 arrived on time 65% of the time, versus 70% across the ORD–AVP route.

Lagging the United Airlines network.

UA 4546 arrived on time 65% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon65%(48 flights)
  • Tue74%(49 flights)
  • Wed62%(52 flights)
  • Thu67%(49 flights)
  • Fri62%(50 flights)
  • Sat62%(50 flights)
  • Sun65%(51 flights)
On-time by departure window
  • 6–9 AM72%(29 flights)
  • 9 AM–12 PM95%(20 flights)
  • 12–3 PM91%(21 flights)
  • 3–6 PM41%(39 flights)
  • 6–9 PM63%(240 flights)
On-time trend by month
86%
May

Jun 70% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%30
July 202561%31
August 202569%29
September 202580%30
October 202568%31
November 202577%26
December 202552%31
January 202646%28
February 202671%28
March 202657%28
April 202643%28
May 202686%29
Departures on time
67%
Diverted
0%
Flights flown
349
Months covered
12

Same route, other flights

Keep nerding

Based on 363 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.