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Flight Reliability

UA 5124 · United Airlines

Chicago → EAU (ORD–EAU)97% of its flights flew this route. The rest (ORD–PLN, PLN–ORD) are included in these numbers.

36
Bring Snacks
WanderNerd Reliability Score
65%
Arrive within 15 minutes
33 min
Average arrival delay
5.2%
Cancelled
1 min
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 71% of the time, against 65% between 9 PM–12 AM.

Skip Tuesday if you can.

UA 5124 arrived on time 70% of the time on Fridays. On Tuesdays: 59%.

Lagging the United Airlines network.

UA 5124 arrived on time 65% of the time, versus 79% across the United Airlines network.

Keep a backup plan handy.

UA 5124 was cancelled 5.2% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon65%(48 flights)
  • Tue59%(49 flights)
  • Wed63%(49 flights)
  • Thu66%(47 flights)
  • Fri70%(50 flights)
  • Sat64%(47 flights)
  • Sun69%(51 flights)
On-time by departure window
  • 3–6 PM71%(14 flights)
  • 6–9 PM—(5 flights)
  • 9 PM–12 AM65%(322 flights)
On-time trend by month
67%
May

Jun 47% → May 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202547%30
July 202558%31
August 202561%31
September 202583%29
October 202577%31
November 202569%26
December 202548%25
January 202667%30
February 202679%28
March 202663%24
April 202662%26
May 202667%30
Departures on time
70%
Diverted
1.1%
Flights flown
341
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.