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Route Reliability

Chicago → PIA

ORD–PIA · 130 miles · Chicago O'Hare International Airport to PIA Airport

57
A Little Dicey
WanderNerd Reliability Score
68%
Arrive within 15 minutes
18 min
Average arrival delay
3.7%
Cancelled
2,828
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.American Airlines74%1,021 flights
  2. 2.United Airlines65%1,807 flights

What the data says

Morning flights do better here.

ORD–PIA flights departing between 6–9 AM arrived on time 75% of the time, versus 65% between 12–3 PM.

Sunday scaries are real for this one.

ORD–PIA flights arrived on time 75% of the time on Tuesdays. On Sundays: 61%.

American Airlines runs this route best.

American Airlines arrived on time 74% of the time on this route; United Airlines managed 65%.

Keep a backup plan handy.

This route was cancelled 3.7% of the time. Typical for U.S. flights is around 1–2%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon66%(388 flights)
  • Tue75%(395 flights)
  • Wed68%(395 flights)
  • Thu69%(392 flights)
  • Fri69%(393 flights)
  • Sat72%(351 flights)
  • Sun61%(406 flights)
On-time by departure window
  • 12–3 AM—(1 flights)
  • 6–9 AM75%(404 flights)
  • 9 AM–12 PM72%(439 flights)
  • 12–3 PM65%(376 flights)
  • 3–6 PM65%(654 flights)
  • 6–9 PM65%(421 flights)
  • 9 PM–12 AM70%(425 flights)
On-time trend by month
73%
May

Jun 69% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%209
July 202557%209
August 202576%215
September 202578%229
October 202572%239
November 202567%203
December 202559%202
January 202666%206
February 202670%215
March 202662%244
April 202670%274
May 202673%275

Keep nerding

Based on 2,828 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.