On-Time Report

Airports › Ontario (ONT) › November 2024

Airport month · November 2024

Ontario International in November 2024

86.5%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 November 2024, reporting carriers scheduled 2,215 domestic departures from Ontario International (ONT). 86.5% left less than 15 minutes late and 86.8% reached their destination on time; 0.7% were cancelled.

Nationally that month, 85.2% of flights departed on time and 84.8% arrived on time, so ONT departures were 1.3 points above the national departure figure.

A year earlier, in November 2023, the airport had 2,091 departures with 85.6% leaving on time: a change of +0.9 points, with flights up 6%.

Flights arriving at ONT that month were on time 83.3% of the time (2,214 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 35% and national aviation system 14%.

Every scheduled departure from ONT in November 2024, judged by arrival at the destination.

November 2024 against a year earlier, the airport's year and the nation

MeasureNov 2024Nov 2023ONT, 12 months to Jul 2026All reported flights, Nov 2024
Departed on time86.5%85.6%80.3%85.2%
Arrived on time86.8%88.0%81.2%84.8%
Cancelled0.7%0.0%0.9%0.5%
Average departure delay (late minutes only)9.3 min10.9 min13.7 min10.2 min
Scheduled departures a day74707119,180
Scheduled departures2,2152,09125,854575,404

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
WN Southwest Airlines93142%89.0%-3.8 min0.2%
AA American Airlines29113%85.6%-1.5 min1.4%
F9 Frontier Airlines28713%76.0%9.4 min1.0%
OO SkyWest Airlines23611%80.1%7.7 min2.1%
AS Alaska Airlines1597%89.3%-2.3 min0.6%
DL Delta Air Lines1376%97.1%-15.1 min0.0%
UA United Airlines1195%91.6%-8.8 min0.0%
HA Hawaiian Airlines301%93.3%-2.3 min0.0%
MQ Envoy Air251%100.0%-13.5 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
ONT–PHXOntario to Phoenix27390.1%-3.5 min0.0%
ONT–LASOntario to Las Vegas24386.0%3.7 min0.0%
ONT–SEAOntario to Seattle22789.9%-3.8 min0.4%
ONT–DENOntario to Denver22486.6%-6.9 min0.9%
ONT–DFWOntario to Dallas/Fort Worth19081.1%2.7 min2.1%
ONT–SFOOntario to San Francisco18070.6%18.5 min2.8%
ONT–SMFOntario to Sacramento17487.4%-3.7 min0.6%
ONT–OAKOntario to Oakland12988.4%-4.6 min0.8%
ONT–SJCOntario to San Jose10989.9%-2.7 min0.0%
ONT–SLCOntario to Salt Lake City8898.9%-13.2 min0.0%
ONT–ATLOntario to Atlanta7796.1%-17.8 min0.0%
ONT–PDXOntario to Portland5887.9%-1.7 min1.7%

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), November 2024.

Delay causes

BTS cause categoryShare of delay minutesNational, Nov 2024Minutes
Air carrier34.7%36.9%6,008
Late-arriving aircraft48.1%35.6%8,340
National Aviation System14.2%21.9%2,458
Extreme weather2.9%5.4%502
Security0.1%0.2%16
17,324 delay minutes on 274 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← October 2024December 2024 →

Questions and answers

How many flights left ONT on time in November 2024?

86.5% of 2,215 scheduled domestic departures left less than 15 minutes late, and 86.8% reached their destination on time. The national figures that month were 85.2% and 84.8%.

How does that compare with a year earlier?

In November 2023, 85.6% of 2,091 departures left on time and 0.0% were cancelled, against 86.5% and 0.7% in November 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for November 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ONT · methodology · corrections.