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Route Reliability

Rochester → Chicago

ROC–ORD · 528 miles · Frederick Douglass Greater Rochester International Airport to Chicago O'Hare International Airport

71
Usually Fine
WanderNerd Reliability Score
75%
Arrive within 15 minutes
16 min
Average arrival delay
2.2%
Cancelled
2,455
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.American Airlines77%1,144 flights
  2. 2.United Airlines73%1,311 flights

What the data says

Morning flights do better here.

ROC–ORD flights departing between 6–9 AM arrived on time 85% of the time, versus 53% between 3–6 PM.

Sunday scaries are real for this one.

ROC–ORD flights arrived on time 78% of the time on Tuesdays. On Sundays: 69%.

American Airlines has a slight edge here.

American Airlines arrived on time 77% of the time on this route; United Airlines managed 73%.

Trending in the right direction.

ROC–ORD flights arrived on time 76% of the time over the last three months in the data, compared with 68% in the three months before that.

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
  • Mon77%(354 flights)
  • Tue78%(342 flights)
  • Wed73%(345 flights)
  • Thu78%(351 flights)
  • Fri75%(349 flights)
  • Sat76%(302 flights)
  • Sun69%(357 flights)
On-time by departure window
  • 3–6 AM85%(27 flights)
  • 6–9 AM85%(669 flights)
  • 9 AM–12 PM84%(536 flights)
  • 12–3 PM79%(434 flights)
  • 3–6 PM53%(448 flights)
  • 6–9 PM62%(284 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
83%
May

Jun 78% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%213
July 202572%207
August 202582%196
September 202582%212
October 202574%229
November 202576%216
December 202563%202
January 202668%156
February 202672%160
March 202667%172
April 202678%217
May 202683%220

Same trip, other airports

Keep nerding

Based on 2,455 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.