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

Springfield, IL (SPI) to Chicago, IL (ORD) flight delay odds

Historically, 78.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 692 flights.

HISTORICAL ROUTE SIGNALVariable
78.3%arrived on time
14.5%30+ min late
3.8%cancelled
692scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.5%all scheduled flights
120+ minutes late4.9%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+5.9 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 morning26786.5%9.4%2.2%
Afternoon27880.9%11.9%1.8%
Evening14557.9%29.0%10.3%

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
Monday10376.7%13.6%5.8%
Tuesday10075.0%20.0%3.0%
Wednesday9686.5%10.4%1.0%
Thursday10182.2%13.9%2.0%
Friday10372.8%17.5%4.9%
Saturday8582.4%4.7%4.7%
Sunday10474.0%19.2%4.8%

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
Envoy Air60981.3%12.0%3.0%
SkyWest Airlines8356.6%32.5%9.6%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20254768.1%21.3%8.5%
August 20256071.7%21.7%5.0%
September 20255782.5%14.0%1.8%
October 20256188.5%6.6%0.0%
November 20255971.2%11.9%6.8%
December 20255966.1%23.7%6.8%
January 20265882.8%12.1%0.0%
February 20265288.5%7.7%0.0%
March 20265875.9%12.1%10.3%
April 20265972.9%20.3%5.1%
May 20266288.7%8.1%0.0%
June 20266081.7%15.0%1.7%

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.

Airline30.8%
Late aircraft38.0%
National airspace24.5%
Weather6.8%
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.