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

Chicago, IL (ORD) to Phoenix, AZ (PHX) flight delay odds

71.4% of 5,594 official scheduled ORD-to-PHX flights arrived on time; 17.8% 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 SIGNALGenerally reliable
71.4%arrived on time
17.8%30+ min late
1.7%cancelled
5,594scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.8%all scheduled flights
120+ minutes late4.1%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+12.9 mincompleted flights

Which departure time was most reliable for ORD to PHX?

Among qualifying ORD-to-PHX departure window results, Early morning had the highest on-time rate: 83.1% of 1,080 flights. Night was lowest at 55.5% across 292 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,08083.1%8.7%1.9%
Late morning1,04977.7%13.9%0.6%
Afternoon1,88569.5%20.0%1.0%
Evening1,28862.7%23.2%3.2%
Night29255.5%26.7%3.8%

Which weekday was most reliable for ORD to PHX?

Among qualifying ORD-to-PHX weekday results, Tuesday had the highest on-time rate: 77.3% of 785 flights. Monday was lowest at 66.5% across 829 flights.

DayFlightsOn time30+ minCancelled
Monday82966.5%22.0%2.5%
Tuesday78577.3%12.9%1.1%
Wednesday74872.5%17.9%1.2%
Thursday81573.1%15.5%1.7%
Friday82268.2%20.1%1.9%
Saturday77376.2%14.5%1.8%
Sunday82266.7%21.2%1.6%

Which airline was most reliable for ORD to PHX?

Among qualifying ORD-to-PHX airline results, United Airlines had the highest on-time rate: 78.5% of 1,938 flights. Southwest Airlines was lowest at 56.7% across 460 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines2,99369.5%18.8%2.3%
United Airlines1,93878.5%13.7%0.4%
Southwest Airlines46056.7%26.3%2.2%
Frontier Airlines20364.5%21.2%3.9%

Which month was most reliable for ORD to PHX?

Among qualifying ORD-to-PHX month results, February 2026 had the highest on-time rate: 80.9% of 446 flights. June 2026 was lowest at 61.1% across 416 flights.

MonthFlightsOn time30+ minCancelled
July 202544162.1%22.4%2.3%
August 202541670.2%17.8%2.6%
September 202543573.8%14.5%1.1%
October 202543974.5%14.1%0.2%
November 202544571.9%17.8%4.3%
December 202548972.0%19.4%0.4%
January 202644673.5%16.8%1.8%
February 202644680.9%9.2%0.0%
March 202658575.0%15.6%2.9%
April 202653765.2%20.7%2.4%
May 202649975.4%15.8%0.4%
June 202641661.1%30.0%1.9%

What drove ORD to PHX delay minutes?

Late aircraft was the largest recorded ORD-to-PHX delay category, accounting for 49.2% of 114,045 BTS-attributed delay minutes during July 2025–June 2026.

Airline31.3%
Late aircraft49.2%
National airspace15.2%
Weather4.1%
Security0.2%
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.