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

Oklahoma City, OK (OKC) to Chicago, IL (ORD) flight delay odds

72.7% of 2,594 official scheduled OKC-to-ORD flights arrived on time; 17.7% arrived at least 30 minutes late and 2.8% 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
72.7%arrived on time
17.7%30+ min late
2.8%cancelled
2,594scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.8%all scheduled flights
120+ minutes late5.3%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+15.1 mincompleted flights

Which departure time was most reliable for OKC to ORD?

Among qualifying OKC-to-ORD departure window results, Early morning had the highest on-time rate: 78.8% of 744 flights. Evening was lowest at 55.6% across 435 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning74478.8%13.0%2.6%
Late morning54877.6%14.1%1.6%
Afternoon86773.1%18.2%2.0%
Evening43555.6%29.2%6.2%

Which weekday was most reliable for OKC to ORD?

Among qualifying OKC-to-ORD weekday results, Tuesday had the highest on-time rate: 79.1% of 368 flights. Sunday was lowest at 62.6% across 385 flights.

DayFlightsOn time30+ minCancelled
Monday39072.3%19.2%3.8%
Tuesday36879.1%13.9%1.1%
Wednesday35472.6%19.8%1.7%
Thursday38377.5%13.1%2.9%
Friday38070.5%18.9%1.6%
Saturday33475.1%14.1%3.9%
Sunday38562.6%24.4%4.4%

Which airline was most reliable for OKC to ORD?

Among qualifying OKC-to-ORD airline results, Republic Airways had the highest on-time rate: 86.3% of 211 flights. SkyWest Airlines was lowest at 71.4% across 2,353 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines2,35371.4%18.8%2.9%
Republic Airways21186.3%7.6%1.4%
Envoy Air2684.6%3.8%3.8%
United Airlines4100.0%0.0%0.0%

Which month was most reliable for OKC to ORD?

Among qualifying OKC-to-ORD month results, May 2026 had the highest on-time rate: 80.5% of 236 flights. March 2026 was lowest at 65.2% across 207 flights.

MonthFlightsOn time30+ minCancelled
July 202522667.7%24.3%1.3%
August 202521569.3%17.7%2.8%
September 202521779.7%12.4%0.9%
October 202523575.7%17.0%0.0%
November 202521869.7%19.7%5.0%
December 202521866.5%25.2%2.8%
January 202618572.4%15.7%5.4%
February 202617080.0%12.4%1.2%
March 202620765.2%24.6%2.4%
April 202623075.2%11.7%6.5%
May 202623680.5%12.7%1.3%
June 202623771.3%18.1%3.8%

What drove OKC to ORD delay minutes?

Airline was the largest recorded OKC-to-ORD delay category, accounting for 54.4% of 57,715 BTS-attributed delay minutes during July 2025–June 2026.

Airline54.4%
Late aircraft15.1%
National airspace21.5%
Weather9.0%
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.