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Route Reliability

Tucson → Chicago

TUS–ORD · 1,437 miles · Tucson International Airport to Chicago O'Hare International Airport

72
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
15 min
Average arrival delay
1.5%
Cancelled
1,039
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines78%539 flights
  2. 2.American Airlines75%500 flights

What the data says

Morning flights do better here.

TUS–ORD flights departing between 6–9 AM arrived on time 86% of the time, versus 70% between 12–3 PM.

Monday is the weak spot.

TUS–ORD flights arrived on time 81% of the time on Thursdays. On Mondays: 68%.

Not much between United Airlines and American Airlines.

On this route they all land within 75% to 78% on time. Pick on schedule and price.

Slipping a little lately.

TUS–ORD flights arrived on time 77% of the time over the last three months in the data, compared with 82% 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
  • Mon68%(145 flights)
  • Tue78%(142 flights)
  • Wed74%(142 flights)
  • Thu81%(143 flights)
  • Fri80%(146 flights)
  • Sat81%(146 flights)
  • Sun72%(150 flights)
On-time by departure window
  • 3–6 AM—(6 flights)
  • 6–9 AM86%(348 flights)
  • 9 AM–12 PM73%(226 flights)
  • 12–3 PM70%(434 flights)
On-time trend by month
80%
May

Jun 76% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%89
July 202572%88
August 202572%64
September 202568%60
October 202573%67
November 202573%86
December 202579%87
January 202680%83
February 202688%80
March 202676%90
April 202675%110
May 202680%110

Same trip, other airports

Keep nerding

Based on 1,039 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.