BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ORD→TUS

Chicago, IL (ORD) to Tucson, AZ (TUS) flight delay odds

67.4% of 1,041 official scheduled ORD-to-TUS flights arrived on time; 20.7% arrived at least 30 minutes late and 1.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
67.4%arrived on time
20.7%30+ min late
1.7%cancelled
1,041scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.0%all scheduled flights
120+ minutes late4.3%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+16.5 mincompleted flights

Which departure time was most reliable for ORD to TUS?

Among qualifying ORD-to-TUS departure window results, Early morning had the highest on-time rate: 78.8% of 80 flights. Night was lowest at 44.2% across 86 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning8078.8%12.5%0.0%
Late morning56773.5%14.8%0.7%
Evening28458.5%27.1%4.2%
Night8644.2%44.2%2.3%

Which weekday was most reliable for ORD to TUS?

Among qualifying ORD-to-TUS weekday results, Tuesday had the highest on-time rate: 79.2% of 149 flights. Friday was lowest at 58.4% across 149 flights.

DayFlightsOn time30+ minCancelled
Monday15160.9%27.2%2.0%
Tuesday14979.2%14.8%1.3%
Wednesday14465.3%21.5%1.4%
Thursday14868.9%16.9%4.1%
Friday14958.4%23.5%0.7%
Saturday15068.7%22.0%1.3%
Sunday15070.7%18.7%1.3%

Which airline was most reliable for ORD to TUS?

Among qualifying ORD-to-TUS airline results, United Airlines had the highest on-time rate: 71.4% of 77 flights. American Airlines was lowest at 64.9% across 482 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines48264.9%22.6%1.9%
SkyWest Airlines46369.8%18.4%1.9%
United Airlines7771.4%19.5%0.0%
Envoy Air1957.9%31.6%0.0%

Which month was most reliable for ORD to TUS?

Among qualifying ORD-to-TUS month results, September 2025 had the highest on-time rate: 85.0% of 60 flights. April 2026 was lowest at 50.0% across 114 flights.

MonthFlightsOn time30+ minCancelled
July 20259254.3%31.5%4.3%
August 20256680.3%15.2%1.5%
September 20256085.0%13.3%0.0%
October 20256867.6%17.6%0.0%
November 20259078.9%7.8%3.3%
December 20259065.6%26.7%0.0%
January 20268560.0%24.7%1.2%
February 20268068.8%20.0%0.0%
March 20269375.3%16.1%1.1%
April 202611450.0%25.4%3.5%
May 202611369.0%20.4%0.9%
June 20269067.8%23.3%3.3%

What drove ORD to TUS delay minutes?

Late aircraft was the largest recorded ORD-to-TUS delay category, accounting for 41.8% of 24,885 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.4%
Late aircraft41.8%
National airspace17.3%
Weather6.5%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.