Airports › Ontario (ONT) › October 2024
Airport month · October 2024
Ontario International in October 2024
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 October 2024, reporting carriers scheduled 2,388 domestic departures from Ontario International (ONT). 88.2% left less than 15 minutes late and 88.3% reached their destination on time; 0.3% were cancelled.
Nationally that month, 85.5% of flights departed on time and 85.8% arrived on time, so ONT departures were 2.7 points above the national departure figure.
A year earlier, in October 2023, the airport had 2,215 departures with 84.8% leaving on time: a change of +3.4 points, with flights up 8%.
Flights arriving at ONT that month were on time 87.9% of the time (2,388 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 47%, air carrier 39% and national aviation system 13%.
- On time 88.3%
- Arrived 15+ minutes late 11.3%
- Cancelled 0.3%
- Diverted 0.1%
October 2024 against a year earlier, the airport's year and the nation
| Measure | Oct 2024 | Oct 2023 | ONT, 12 months to Jul 2026 | All reported flights, Oct 2024 |
|---|---|---|---|---|
| Departed on time | 88.2% | 84.8% | 80.3% | 85.5% |
| Arrived on time | 88.3% | 85.9% | 81.2% | 85.8% |
| Cancelled | 0.3% | 0.4% | 0.9% | 1.0% |
| Average departure delay (late minutes only) | 8.5 min | 10.2 min | 13.7 min | 9.4 min |
| Scheduled departures a day | 80 | 74 | 71 | 20,517 |
| Scheduled departures | 2,388 | 2,215 | 25,854 | 615,497 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 986 | 41% | 89.1% | -3.6 min | 0.4% |
| F9 Frontier Airlines | 327 | 14% | 79.5% | 2.6 min | 0.3% |
| AA American Airlines | 298 | 12% | 90.6% | 1.1 min | 0.0% |
| OO SkyWest Airlines | 273 | 11% | 87.5% | -0.3 min | 0.0% |
| UA United Airlines | 152 | 6% | 92.8% | -4.8 min | 0.0% |
| AS Alaska Airlines | 148 | 6% | 89.2% | -2.4 min | 0.0% |
| DL Delta Air Lines | 146 | 6% | 93.8% | -7.8 min | 0.0% |
| HA Hawaiian Airlines | 32 | 1% | 87.5% | -7.7 min | 3.1% |
| B6 JetBlue Airways | 26 | 1% | 88.5% | -7.3 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| ONT–PHX | Ontario to Phoenix | 292 | 89.7% | -0.9 min | 0.3% |
| ONT–LAS | Ontario to Las Vegas | 264 | 78.0% | 4.2 min | 0.0% |
| ONT–DEN | Ontario to Denver | 259 | 90.3% | -4.3 min | 0.0% |
| ONT–DFW | Ontario to Dallas/Fort Worth | 212 | 92.9% | -0.5 min | 0.0% |
| ONT–SEA | Ontario to Seattle | 209 | 94.3% | -6.5 min | 0.0% |
| ONT–SMF | Ontario to Sacramento | 193 | 91.2% | -5.9 min | 0.0% |
| ONT–SFO | Ontario to San Francisco | 165 | 80.0% | 5.8 min | 0.6% |
| ONT–OAK | Ontario to Oakland | 134 | 91.0% | -6.2 min | 1.5% |
| ONT–SJC | Ontario to San Jose | 123 | 96.7% | -10.1 min | 0.0% |
| ONT–SLC | Ontario to Salt Lake City | 94 | 97.9% | -12.8 min | 0.0% |
| ONT–ATL | Ontario to Atlanta | 84 | 90.5% | -4.7 min | 0.0% |
| ONT–PDX | Ontario to Portland | 69 | 72.5% | 7.7 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left ONT on time in October 2024?
88.2% of 2,388 scheduled domestic departures left less than 15 minutes late, and 88.3% reached their destination on time. The national figures that month were 85.5% and 85.8%.
How does that compare with a year earlier?
In October 2023, 84.8% of 2,215 departures left on time and 0.4% were cancelled, against 88.2% and 0.3% in October 2024.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 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.