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

New York, NY (LGA) to Chicago, IL (ORD) flight delay odds

63.8% of 11,625 official scheduled LGA-to-ORD flights arrived on time; 22.5% arrived at least 30 minutes late and 4.9% 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 SIGNALHigher disruption
63.8%arrived on time
22.5%30+ min late
4.9%cancelled
11,625scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late14.0%all scheduled flights
120+ minutes late6.7%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+21.7 mincompleted flights

Which departure time was most reliable for LGA to ORD?

Among qualifying LGA-to-ORD departure window results, Early morning had the highest on-time rate: 80.9% of 2,874 flights. Evening was lowest at 47.3% across 3,282 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning2,87480.9%9.2%4.0%
Late morning1,95471.8%15.1%3.9%
Afternoon3,18360.5%25.9%4.6%
Evening3,28247.3%35.0%6.7%
Night33262.0%25.0%6.0%

Which weekday was most reliable for LGA to ORD?

Among qualifying LGA-to-ORD weekday results, Saturday had the highest on-time rate: 70.4% of 1,107 flights. Sunday was lowest at 54.0% across 1,673 flights.

DayFlightsOn time30+ minCancelled
Monday1,77759.7%23.7%8.8%
Tuesday1,81168.0%19.7%4.2%
Wednesday1,75965.8%21.3%3.7%
Thursday1,73763.2%23.6%4.1%
Friday1,76167.1%20.6%3.4%
Saturday1,10770.4%18.3%2.3%
Sunday1,67354.0%29.1%7.2%

Which airline was most reliable for LGA to ORD?

Among qualifying LGA-to-ORD airline results, Delta Air Lines had the highest on-time rate: 64.9% of 2,296 flights. SkyWest Airlines was lowest at 51.1% across 92 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines4,66264.0%22.8%3.7%
American Airlines2,94764.3%22.8%4.5%
Delta Air Lines2,29664.9%23.2%4.7%
Republic Airways1,29861.9%18.1%9.3%
Spirit Airlines33057.6%28.8%7.3%
SkyWest Airlines9251.1%17.4%17.4%

Which month was most reliable for LGA to ORD?

Among qualifying LGA-to-ORD month results, September 2025 had the highest on-time rate: 77.1% of 972 flights. March 2026 was lowest at 49.3% across 996 flights.

MonthFlightsOn time30+ minCancelled
July 20251,01154.8%31.8%6.8%
August 202597370.6%17.8%3.4%
September 202597277.1%15.7%0.3%
October 20251,02554.6%30.0%2.0%
November 202597656.4%31.4%4.4%
December 202591056.5%28.0%4.5%
January 202695170.1%13.9%8.1%
February 202688373.6%10.6%7.5%
March 202699649.3%27.8%11.8%
April 202696367.4%20.8%3.4%
May 202699772.6%18.1%1.7%
June 202696863.8%22.3%5.6%

What drove LGA to ORD delay minutes?

Late aircraft was the largest recorded LGA-to-ORD delay category, accounting for 38.7% of 319,377 BTS-attributed delay minutes during July 2025–June 2026.

Airline20.4%
Late aircraft38.7%
National airspace36.1%
Weather4.6%
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.