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

Newark, NJ (EWR) to Chicago, IL (ORD) flight delay odds

69.0% of 6,039 official scheduled EWR-to-ORD flights arrived on time; 19.0% arrived at least 30 minutes late and 3.3% 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 SIGNALVariable
69.0%arrived on time
19.0%30+ min late
3.3%cancelled
6,039scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.3%all scheduled flights
120+ minutes late5.5%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+15.9 mincompleted flights

Which departure time was most reliable for EWR to ORD?

Among qualifying EWR-to-ORD departure window results, Early morning had the highest on-time rate: 82.5% of 1,474 flights. Evening was lowest at 52.4% across 1,113 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,47482.5%8.1%2.3%
Late morning1,42676.9%13.2%1.9%
Afternoon1,60464.2%22.4%3.5%
Evening1,11352.4%31.6%4.7%
Night42256.4%30.3%7.6%

Which weekday was most reliable for EWR to ORD?

Among qualifying EWR-to-ORD weekday results, Tuesday had the highest on-time rate: 74.2% of 872 flights. Sunday was lowest at 62.9% across 891 flights.

DayFlightsOn time30+ minCancelled
Monday88768.7%17.7%5.2%
Tuesday87274.2%15.6%2.1%
Wednesday85071.2%19.9%1.8%
Thursday87169.8%18.8%2.9%
Friday87867.8%17.7%2.5%
Saturday79068.4%21.0%2.3%
Sunday89162.9%22.4%6.4%

Which airline was most reliable for EWR to ORD?

Among qualifying EWR-to-ORD airline results, American Airlines had the highest on-time rate: 74.7% of 735 flights. Spirit Airlines was lowest at 44.9% across 156 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines4,38969.4%18.6%2.3%
American Airlines73574.7%17.0%3.8%
Envoy Air65769.1%18.4%5.5%
Spirit Airlines15644.9%32.1%16.7%
Republic Airways10246.1%32.4%11.8%

Which month was most reliable for EWR to ORD?

Among qualifying EWR-to-ORD month results, September 2025 had the highest on-time rate: 79.3% of 474 flights. July 2025 was lowest at 59.2% across 498 flights.

MonthFlightsOn time30+ minCancelled
July 202549859.2%25.7%6.4%
August 202549371.6%20.1%1.2%
September 202547479.3%13.1%1.3%
October 202550260.0%24.3%0.4%
November 202552160.8%24.4%6.0%
December 202551166.7%21.9%1.6%
January 202647968.5%16.5%6.3%
February 202643972.7%12.5%7.1%
March 202651061.6%23.3%5.5%
April 202653276.5%14.1%1.9%
May 202655279.2%12.3%0.9%
June 202652871.2%19.1%2.3%

What drove EWR to ORD delay minutes?

National airspace was the largest recorded EWR-to-ORD delay category, accounting for 40.9% of 135,192 BTS-attributed delay minutes during July 2025–June 2026.

Airline18.5%
Late aircraft34.8%
National airspace40.9%
Weather5.9%
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.