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

Fort Lauderdale, FL (FLL) to Chicago, IL (ORD) flight delay odds

67.4% of 3,422 official scheduled FLL-to-ORD flights arrived on time; 21.0% arrived at least 30 minutes late and 1.8% 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
67.4%arrived on time
21.0%30+ min late
1.8%cancelled
3,422scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.5%all scheduled flights
120+ minutes late5.6%all scheduled flights
Diverted0.7%did not reach as scheduled
Average arrival+20.3 mincompleted flights

Which departure time was most reliable for FLL to ORD?

Among qualifying FLL-to-ORD departure window results, Early morning had the highest on-time rate: 81.8% of 758 flights. Evening was lowest at 50.9% across 631 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning75881.8%8.8%0.9%
Late morning35080.6%10.3%1.7%
Afternoon1,45566.0%22.4%1.4%
Evening63150.9%33.9%2.7%
Night22853.9%33.8%4.4%

Which weekday was most reliable for FLL to ORD?

Among qualifying FLL-to-ORD weekday results, Tuesday had the highest on-time rate: 73.2% of 448 flights. Sunday was lowest at 59.2% across 524 flights.

DayFlightsOn time30+ minCancelled
Monday50866.7%21.3%3.3%
Tuesday44873.2%16.3%0.2%
Wednesday43072.1%17.9%1.2%
Thursday51271.5%17.2%0.6%
Friday50661.9%24.1%2.8%
Saturday49469.0%19.8%1.0%
Sunday52459.2%29.4%2.9%

Which airline was most reliable for FLL to ORD?

Among qualifying FLL-to-ORD airline results, United Airlines had the highest on-time rate: 73.7% of 1,479 flights. Southwest Airlines was lowest at 36.4% across 33 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines1,47973.7%16.0%0.7%
Spirit Airlines91359.1%27.8%3.3%
American Airlines84668.2%21.2%1.5%
Frontier Airlines15158.3%25.2%3.3%
Southwest Airlines3336.4%36.4%3.0%

Which month was most reliable for FLL to ORD?

Among qualifying FLL-to-ORD month results, September 2025 had the highest on-time rate: 84.5% of 206 flights. March 2026 was lowest at 48.6% across 440 flights.

MonthFlightsOn time30+ minCancelled
July 202521169.2%24.2%1.9%
August 202520375.4%14.3%0.5%
September 202520684.5%10.7%0.5%
October 202521976.3%11.4%0.0%
November 202528770.0%19.2%1.7%
December 202536068.3%21.9%0.6%
January 202638462.2%23.7%2.3%
February 202635668.8%19.9%0.8%
March 202644048.6%35.0%5.5%
April 202632561.2%21.2%2.8%
May 202622977.3%13.5%0.0%
June 202620272.3%21.3%1.0%

What drove FLL to ORD delay minutes?

Late aircraft was the largest recorded FLL-to-ORD delay category, accounting for 34.8% of 90,338 BTS-attributed delay minutes during July 2025–June 2026.

Airline24.5%
Late aircraft34.8%
National airspace34.8%
Weather5.8%
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.