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| Current local time | 07:48:32 Friday 31.10.2025 | 
| Time zone | UTC - 08:00 | 
| Demand calculation | 03:15:42 UTC | 
| IATA code | ONT | 
| ICAO code | KONT | 
| IATA Area | Traffic Conference 1 | 
| IATA Sub-Area | North America | 
| Region | California | 
| Country | USA | 
| Continent | North America | 
| Runway | 3,717 m | 
| Airport size | Above-average sized airport | 
| Slots (per 5 minutes) | 8 | 
| Slot Availability | 97% | 
| Min. transfer time | 01:00h | 
| Nighttime ban | no nighttime ban | 
| Noise restrictions | no noise restrictions | 
| Passengers |  | 
| Cargo |  | 
| 2025-10-30 13:18 UTC | Caribbean Cargo has opened a new station at Ontario. | 
| 2025-10-28 21:36 UTC | Non Functioning Airline to support Devt Server has opened a new station at Ontario. | 
| 2025-10-27 15:41 UTC | Gamma Airways has opened a new station at Ontario. | 
| 2025-10-26 20:57 UTC | AEC has opened a new station at Ontario. | 
| 2025-10-24 23:13 UTC | Federal Parcel Service has opened a new station at Ontario. | 
| 2025-10-24 19:49 UTC | Legion Airways has opened a new station at Ontario. | 
| 2025-10-23 16:09 UTC | JetSpeed has opened a new station at Ontario. | 
| 2025-10-23 06:22 UTC | Mid-American-Wings has opened a new station at Ontario. | 
| 2025-10-22 16:04 UTC | US EAGLE has opened a new station at Ontario. | 
| 2025-10-22 05:16 UTC | Eagle Express has opened a new station at Ontario. | 
| 2025-10-20 14:02 UTC | HiKai has opened a new station at Ontario. | 
| 2025-10-19 21:38 UTC | Bizlinc has opened a new station at Ontario. | 
| 2025-10-18 22:11 UTC | Pechy Air US has opened a new station at Ontario. | 
| 2025-10-18 06:06 UTC | Southern California Airlines has opened a new station at Ontario. | 
| 2025-10-18 05:48 UTC | Blue Ridge and Smoky Airways has opened a new station at Ontario. | 
There are thousands of airports and hundreds of countries in AirlineSim. Consequently, data are bound to be wrong sometimes. In case you came across any mistake - like wrong values, missing airports or naming errors - please send your findings, your sources and a detailed description of the issue to support@airlinesim.aero. Thank you very much for your support!
| Enterprise | IL | Weekly departures | Flight schedule | ||
|---|---|---|---|---|---|
|   |  | Air Franco | 6 Departures | ||
| Arlington Air | 7 Departures | ||||
|  | Aviastar Cargo | 3 Departures | |||
| Bella Vista | 7 Departures | ||||
|   |  | Bizlinc | 14 Departures | ||
| Black Mamba Air | 0 Departures | ||||
|  | Bymon Air | 2 Departures | |||
| Caribbean Cargo | 2 Departures | ||||
| Eagle Express | 0 Departures | ||||
| Federal Parcel Service | 0 Departures | ||||
|  | Fly By Airways | 21 Departures | |||
| Fly Dirty | 7 Departures | ||||
|   |  | Gamma Airways | 7 Departures | ||
| Global Express | 7 Departures | ||||
|   |  | Hakutaka | 7 Departures | ||
|   |  | HiKai | 3 Departures | ||
| JetSpeed | 7 Departures | ||||
|  | Las Vegas Air | 7 Departures | |||
| Mid-American-Wings | 7 Departures | ||||
| Non Functioning Airline to support Devt Server | 83 Departures | ||||
| Norcal Airlines | 7 Departures | ||||
| Pechy Air US | 7 Departures | ||||
|   | Polaris Airlines | 7 Departures | |||
|  | Score Airways | 0 Departures | |||
| Sierra Skies | 0 Departures | ||||
|   |  | SkyLink America | 21 Departures | ||
|   | Southern California Airlines | 7 Departures | |||
|  | TransTropical Air Lines | 0 Departures | |||
| True American Airlines | 0 Departures | ||||
| United Conti Airlines | 7 Departures | ||||