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

West Palm Beach/Palm Beach, FL (PBI) to Chicago, IL (ORD) flight delay odds

Historically, 65.1% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,297 flights.

HISTORICAL ROUTE SIGNALVariable
65.1%arrived on time
22.7%30+ min late
1.9%cancelled
1,297scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late14.8%all scheduled flights
120+ minutes late7.5%all scheduled flights
Diverted0.9%did not reach as scheduled
Average arrival+26.4 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 morning21887.2%8.3%0.9%
Late morning9983.8%7.1%0.0%
Afternoon63362.6%24.5%1.1%
Evening34750.4%33.1%4.6%

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
Monday19257.3%27.6%4.2%
Tuesday17471.8%15.5%1.1%
Wednesday16674.7%14.5%1.2%
Thursday18764.2%24.1%1.1%
Friday18760.4%25.1%2.7%
Saturday19966.3%21.1%1.5%
Sunday19262.5%29.7%1.6%

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
American Airlines79664.8%23.7%2.6%
United Airlines50165.5%21.2%0.8%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20256245.2%38.7%4.8%
August 20255246.2%44.2%0.0%
September 20254875.0%14.6%0.0%
October 20258560.0%28.2%0.0%
November 202512064.2%26.7%3.3%
December 202515672.4%16.7%2.6%
January 202613666.2%20.6%1.5%
February 202613171.8%18.3%0.0%
March 202616459.8%18.3%3.0%
April 202612463.7%27.4%1.6%
May 202610571.4%20.0%1.9%
June 202611469.3%19.3%2.6%

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.

Airline28.4%
Late aircraft42.5%
National airspace24.8%
Weather4.3%
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.