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

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

73.7% of 2,797 official scheduled MDW-to-PHX flights arrived on time; 15.1% arrived at least 30 minutes late and 1.5% 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
73.7%arrived on time
15.1%30+ min late
1.5%cancelled
2,797scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.0%all scheduled flights
120+ minutes late2.3%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+8.8 mincompleted flights

Which departure time was most reliable for MDW to PHX?

Among qualifying MDW-to-PHX departure window results, Early morning had the highest on-time rate: 87.4% of 786 flights. Night was lowest at 51.4% across 175 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning78687.4%5.2%0.9%
Late morning45578.9%11.2%2.0%
Afternoon73072.3%15.3%1.4%
Evening65161.0%24.7%1.7%
Night17551.4%32.0%2.9%

Which weekday was most reliable for MDW to PHX?

Among qualifying MDW-to-PHX weekday results, Saturday had the highest on-time rate: 79.9% of 314 flights. Sunday was lowest at 69.1% across 418 flights.

DayFlightsOn time30+ minCancelled
Monday43370.0%17.1%1.8%
Tuesday39476.6%12.7%1.0%
Wednesday38076.8%13.4%0.8%
Thursday43373.7%15.0%1.8%
Friday42571.8%16.0%1.2%
Saturday31479.9%8.9%2.5%
Sunday41869.1%20.3%1.4%

Which airline was most reliable for MDW to PHX?

Among qualifying MDW-to-PHX airline results, Frontier Airlines had the highest on-time rate: 74.0% of 127 flights. Southwest Airlines was lowest at 73.7% across 2,670 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines2,67073.7%14.9%1.5%
Frontier Airlines12774.0%17.3%1.6%

Which month was most reliable for MDW to PHX?

Among qualifying MDW-to-PHX month results, September 2025 had the highest on-time rate: 88.3% of 205 flights. June 2026 was lowest at 56.9% across 218 flights.

MonthFlightsOn time30+ minCancelled
July 202525268.7%19.8%1.2%
August 202521382.6%8.5%1.4%
September 202520588.3%4.9%1.0%
October 202526574.7%13.2%0.0%
November 202522472.3%14.7%5.8%
December 202524266.1%23.6%0.8%
January 202620378.3%9.4%0.0%
February 202620681.6%8.7%0.0%
March 202628374.2%13.4%3.5%
April 202625167.7%19.5%0.8%
May 202623576.6%13.2%0.9%
June 202621856.9%28.9%2.3%

What drove MDW to PHX delay minutes?

Late aircraft was the largest recorded MDW-to-PHX delay category, accounting for 44.6% of 40,432 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.4%
Late aircraft44.6%
National airspace14.5%
Weather3.9%
Security0.6%
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.