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

Chicago, IL (ORD) to Appleton, WI (ATW) flight delay odds

66.7% of 2,514 official scheduled ORD-to-ATW flights arrived on time; 20.4% arrived at least 30 minutes late and 4.5% 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 SIGNALHigher disruption
66.7%arrived on time
20.4%30+ min late
4.5%cancelled
2,514scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.6%all scheduled flights
120+ minutes late5.1%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+17.7 mincompleted flights

Which departure time was most reliable for ORD to ATW?

Among qualifying ORD-to-ATW departure window results, Early morning had the highest on-time rate: 79.8% of 356 flights. Evening was lowest at 56.8% across 442 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning35679.8%11.5%2.8%
Late morning40170.1%20.9%2.2%
Afternoon95665.4%21.3%4.0%
Evening44256.8%27.8%5.9%
Night35966.0%17.3%8.1%

Which weekday was most reliable for ORD to ATW?

Among qualifying ORD-to-ATW weekday results, Tuesday had the highest on-time rate: 72.5% of 349 flights. Monday was lowest at 61.2% across 371 flights.

DayFlightsOn time30+ minCancelled
Monday37161.2%25.3%7.3%
Tuesday34972.5%15.5%3.7%
Wednesday34766.3%20.7%2.6%
Thursday36368.0%17.6%4.7%
Friday37063.5%23.2%4.3%
Saturday35072.3%15.4%4.3%
Sunday36464.0%24.7%4.1%

Which airline was most reliable for ORD to ATW?

Among qualifying ORD-to-ATW airline results, Envoy Air had the highest on-time rate: 72.0% of 1,177 flights. SkyWest Airlines was lowest at 62.1% across 1,337 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,33762.1%23.9%5.4%
Envoy Air1,17772.0%16.6%3.4%

Which month was most reliable for ORD to ATW?

Among qualifying ORD-to-ATW month results, September 2025 had the highest on-time rate: 85.4% of 130 flights. December 2025 was lowest at 48.4% across 159 flights.

MonthFlightsOn time30+ minCancelled
July 202527160.9%26.6%1.1%
August 202519470.1%17.0%4.1%
September 202513085.4%8.5%0.8%
October 202518176.8%12.2%0.6%
November 202517266.3%15.7%9.3%
December 202515948.4%39.6%4.4%
January 202618262.6%25.8%4.9%
February 202620870.7%19.7%0.0%
March 202626361.2%19.8%11.8%
April 202633057.9%24.8%8.2%
May 202626076.5%16.2%1.2%
June 202616475.6%13.4%3.7%

What drove ORD to ATW delay minutes?

Late aircraft was the largest recorded ORD-to-ATW delay category, accounting for 35.6% of 56,264 BTS-attributed delay minutes during July 2025–June 2026.

Airline29.2%
Late aircraft35.6%
National airspace21.1%
Weather14.1%
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.