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

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

Historically, 67.4% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 3,422 flights.

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

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

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%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

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%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 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%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

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 reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

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.