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

Chicago, IL (ORD) to Los Angeles, CA (LAX) flight delay odds

Historically, 71.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 6,961 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
71.3%arrived on time
17.6%30+ min late
1.6%cancelled
6,961scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.9%all scheduled flights
120+ minutes late4.2%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+12.8 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 morning1,75181.4%9.4%1.9%
Late morning1,10676.1%14.7%0.7%
Afternoon1,89172.3%18.1%0.8%
Evening1,70359.2%25.6%2.2%
Night51062.2%23.3%3.1%

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
Monday1,04070.4%18.7%1.4%
Tuesday96775.7%14.7%1.0%
Wednesday93872.9%17.2%1.2%
Thursday1,03073.3%15.3%2.0%
Friday1,03370.8%16.4%1.6%
Saturday91769.2%19.0%1.6%
Sunday1,03666.9%21.8%2.1%

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 Airlines3,38075.9%14.8%0.7%
American Airlines3,05266.9%20.1%2.3%
Spirit Airlines23571.9%17.9%3.4%
Frontier Airlines22863.2%22.4%4.8%
Delta Air Lines6660.6%25.8%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202568765.9%20.7%3.6%
August 202566471.1%18.2%1.7%
September 202561681.0%11.4%0.3%
October 202556572.6%13.8%0.0%
November 202558875.0%15.5%3.6%
December 202556866.5%20.1%1.6%
January 202646369.8%17.1%1.1%
February 202645178.7%13.5%0.0%
March 202654972.3%16.6%2.9%
April 202655164.2%23.4%1.5%
May 202660178.5%13.0%0.5%
June 202665862.0%25.8%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.

Airline32.7%
Late aircraft42.2%
National airspace16.8%
Weather8.1%
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.