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

Key West, FL (EYW) to Chicago, IL (ORD) flight delay odds

64.7% of 717 official scheduled EYW-to-ORD flights arrived on time; 20.5% arrived at least 30 minutes late and 1.4% 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
64.7%arrived on time
20.5%30+ min late
1.4%cancelled
717scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late13.2%all scheduled flights
120+ minutes late6.7%all scheduled flights
Diverted2.6%did not reach as scheduled
Average arrival+22.1 mincompleted flights

Which departure time was most reliable for EYW to ORD?

Among qualifying EYW-to-ORD departure window results, Afternoon had the highest on-time rate: 64.1% of 569 flights. Evening was lowest at 63.2% across 114 flights.

Departure windowFlightsOn time30+ minCancelled
Afternoon56964.1%20.0%1.6%
Evening11463.2%25.4%0.9%

Which weekday was most reliable for EYW to ORD?

Among qualifying EYW-to-ORD weekday results, Wednesday had the highest on-time rate: 68.5% of 92 flights. Sunday was lowest at 60.6% across 104 flights.

DayFlightsOn time30+ minCancelled
Monday10465.4%20.2%2.9%
Tuesday9764.9%18.6%0.0%
Wednesday9268.5%22.8%0.0%
Thursday9960.6%19.2%2.0%
Friday10465.4%21.2%0.0%
Saturday11767.5%17.9%1.7%
Sunday10460.6%24.0%2.9%

Which airline was most reliable for EYW to ORD?

Among qualifying EYW-to-ORD airline results, Republic Airways had the highest on-time rate: 73.8% of 172 flights. United Airlines was lowest at 52.9% across 138 flights.

AirlineFlightsOn time30+ minCancelled
Envoy Air40764.9%20.9%1.2%
Republic Airways17273.8%14.0%1.7%
United Airlines13852.9%27.5%1.4%

Which month was most reliable for EYW to ORD?

Among qualifying EYW-to-ORD month results, May 2026 had the highest on-time rate: 81.9% of 83 flights. February 2026 was lowest at 55.7% across 97 flights.

MonthFlightsOn time30+ minCancelled
November 20256966.7%23.2%4.3%
December 20258958.4%28.1%0.0%
January 202610063.0%20.0%0.0%
February 20269755.7%21.6%0.0%
March 202611469.3%20.2%3.5%
April 20269462.8%24.5%0.0%
May 20268381.9%9.6%1.2%
June 20266060.0%15.0%3.3%

What drove EYW to ORD delay minutes?

Late aircraft was the largest recorded EYW-to-ORD delay category, accounting for 39.2% of 20,757 BTS-attributed delay minutes during July 2025–June 2026.

Airline29.3%
Late aircraft39.2%
National airspace25.1%
Weather6.3%
Security0.1%
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.