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

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

71.9% of 2,803 official scheduled PHX-to-MDW flights arrived on time; 14.7% arrived at least 30 minutes late and 1.1% 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
71.9%arrived on time
14.7%30+ min late
1.1%cancelled
2,803scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.6%all scheduled flights
120+ minutes late1.7%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+10.1 mincompleted flights

Which departure time was most reliable for PHX to MDW?

Among qualifying PHX-to-MDW departure window results, Early morning had the highest on-time rate: 87.4% of 856 flights. Evening was lowest at 57.5% across 593 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning85687.4%4.9%0.8%
Late morning41576.1%9.9%0.5%
Afternoon82763.5%19.1%1.5%
Evening59357.5%27.0%1.5%
Night11276.8%10.7%0.0%

Which weekday was most reliable for PHX to MDW?

Among qualifying PHX-to-MDW weekday results, Wednesday had the highest on-time rate: 78.4% of 384 flights. Monday was lowest at 68.5% across 432 flights.

DayFlightsOn time30+ minCancelled
Monday43268.5%17.6%1.2%
Tuesday39773.6%12.1%0.3%
Wednesday38478.4%9.6%0.3%
Thursday43370.2%17.1%1.4%
Friday42371.2%15.4%1.4%
Saturday31873.6%10.4%1.9%
Sunday41669.2%19.2%1.2%

Which airline was most reliable for PHX to MDW?

Among qualifying PHX-to-MDW airline results, Southwest Airlines had the highest on-time rate: 72.2% of 2,676 flights. Frontier Airlines was lowest at 65.4% across 127 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines2,67672.2%14.5%1.0%
Frontier Airlines12765.4%18.9%1.6%

Which month was most reliable for PHX to MDW?

Among qualifying PHX-to-MDW month results, September 2025 had the highest on-time rate: 83.3% of 204 flights. March 2026 was lowest at 58.3% across 283 flights.

MonthFlightsOn time30+ minCancelled
July 202525273.4%14.3%0.4%
August 202521276.4%13.7%0.5%
September 202520483.3%8.3%1.0%
October 202526681.6%10.5%0.0%
November 202522370.0%16.6%4.5%
December 202524275.2%12.4%0.4%
January 202620175.6%10.9%0.5%
February 202620478.4%7.4%0.0%
March 202628358.3%21.2%3.2%
April 202625171.3%16.7%0.8%
May 202623662.7%16.5%0.8%
June 202622961.1%25.3%0.4%

What drove PHX to MDW delay minutes?

Late aircraft was the largest recorded PHX-to-MDW delay category, accounting for 42.8% of 36,546 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.2%
Late aircraft42.8%
National airspace15.0%
Weather4.7%
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.