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Flight Reliability

UA 5807 · United Airlines

PIA → Chicago (PIA–ORD)83% of its flights flew this route. The rest (IAH–SAT, ORD–JAX) are included in these numbers.

67
Usually Fine
WanderNerd Reliability Score
74%
Arrive within 15 minutes
16 min
Average arrival delay
3.1%
Cancelled
5 min early
Median arrival delay

Based on 255 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

UA 5807 departing between 3–6 PM arrived on time 84% of the time, versus 74% between 9 AM–12 PM.

Sunday scaries are real for this one.

UA 5807 arrived on time 89% of the time on Tuesdays and just 62% on Sundays. That gap is worth planning around.

A bit ahead of the PIA–ORD route.

UA 5807 arrived on time 74% of the time, versus 70% across the PIA–ORD route.

A bit behind the United Airlines network.

UA 5807 arrived on time 74% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon64%(36 flights)
  • Tue89%(35 flights)
  • Wed74%(34 flights)
  • Thu69%(36 flights)
  • Fri86%(36 flights)
  • Sat76%(33 flights)
  • Sun62%(37 flights)
On-time by departure window
  • 6–9 AM—(6 flights)
  • 9 AM–12 PM74%(205 flights)
  • 12–3 PM82%(11 flights)
  • 3–6 PM84%(25 flights)
On-time trend by month
84%
May

Jun 70% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%30
July 202574%31
August 202555%31
September 202590%30
October 202574%31
November 202579%24
December 202569%16
March 202676%25
May 202684%25
Departures on time
76%
Diverted
0%
Flights flown
247
Months covered
10

Same route, other flights

Keep nerding

Based on 255 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.