On-Time Report

Airports › Chicago (ORD) › April 2026

Airport month · April 2026

Chicago O'Hare International in April 2026

70.9%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In April 2026, reporting carriers scheduled 33,206 domestic departures from Chicago O'Hare International (ORD). 70.9% left less than 15 minutes late and 67.1% reached their destination on time; 3.5% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so ORD departures were 8.2 points below the national departure figure.

A year earlier, in April 2025, the airport had 26,136 departures with 80.9% leaving on time: a change of −10.0 points, with flights up 27%.

Flights arriving at ORD that month were on time 70.4% of the time (33,199 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 25% and national aviation system 21%.

Every scheduled departure from ORD in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

MeasureApr 2026Apr 2025ORD, 12 months to Jul 2026All reported flights, Apr 2026
Departed on time70.9%80.9%71.4%79.1%
Arrived on time67.1%79.4%69.4%78.9%
Cancelled3.5%1.3%2.8%0.9%
Average departure delay (late minutes only)21.8 min13.3 min22.3 min14.5 min
Scheduled departures a day1,10787198619,931
Scheduled departures33,20626,136359,911597,919

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
UA United Airlines8,58126%71.3%12.4 min1.5%
OO SkyWest Airlines7,12121%59.0%25.1 min6.1%
MQ Envoy Air5,82918%73.0%8.3 min3.7%
AA American Airlines5,73017%61.8%21.0 min3.2%
YX Republic Airline3,26810%73.8%7.1 min3.8%
DL Delta Air Lines7652%74.4%13.5 min2.4%
NK Spirit Airlines4231%45.6%39.6 min5.7%
WN Southwest Airlines4001%64.0%17.3 min1.8%
F9 Frontier Airlines3951%65.8%21.2 min3.5%
OH PSA Airlines3931%62.3%34.7 min5.9%
AS Alaska Airlines2321%75.0%10.6 min0.9%
B6 JetBlue Airways690%88.4%-7.5 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
ORD–LGAChicago to New York96262.8%17.2 min3.0%
ORD–BOSChicago to Boston64168.3%12.2 min2.2%
ORD–INDChicago to Indianapolis59068.1%13.0 min6.3%
ORD–MCOChicago to Orlando58365.9%14.8 min1.7%
ORD–MSPChicago to Minneapolis58371.9%13.1 min2.6%
ORD–DFWChicago to Dallas/Fort Worth57963.7%23.0 min2.8%
ORD–DCAChicago to Washington56768.8%13.8 min3.2%
ORD–DTWChicago to Detroit56773.0%13.1 min3.4%
ORD–ATLChicago to Atlanta55471.5%16.6 min2.9%
ORD–LAXChicago to Los Angeles55164.2%19.3 min1.5%
ORD–PHXChicago to Phoenix53765.2%19.5 min2.4%
ORD–EWRChicago to Newark53577.2%4.9 min1.5%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), April 2026.

Delay causes

BTS cause categoryShare of delay minutesNational, Apr 2026Minutes
Air carrier25.2%33.5%181,663
Late-arriving aircraft45.2%40.4%325,938
National Aviation System21.1%21.0%152,038
Extreme weather8.5%5.0%61,420
Security0.0%0.1%188
721,247 delay minutes on 9,674 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← March 2026May 2026 →

Questions and answers

How many flights left ORD on time in April 2026?

70.9% of 33,206 scheduled domestic departures left less than 15 minutes late, and 67.1% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 80.9% of 26,136 departures left on time and 1.3% were cancelled, against 70.9% and 3.5% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ORD · methodology · corrections.