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| Current local time | 04:49:30 Sunday 04.10.2026 |
| 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 | 87% |
| Min. transfer time | 01:00h |
| Nighttime ban | no nighttime ban |
| Noise restrictions | no noise restrictions |
| Passengers | ![]() |
| Cargo | ![]() |
| 2026-10-02 17:07 UTC | Star Cargo have shut down their station at Ontario. |
| 2026-09-28 22:13 UTC | Coastliner, based at Ontario, has ceased operations. All shares have been returned or liquidated. |
| 2026-09-28 01:01 UTC | Coastliner has opened a new station at Salt Lake City. |
| 2026-09-28 01:00 UTC | Coastliner has opened a new station at Phoenix. |
| 2026-09-28 00:58 UTC | Coastliner have shut down their station at Seattle/Tacoma. |
| 2026-09-28 00:48 UTC | Coastliner has opened a new station at Newark. |
| 2026-09-28 00:47 UTC | Coastliner has opened a new station at Oakland. |
| 2026-09-28 00:47 UTC | Coastliner has opened a new station at Honolulu. |
| 2026-09-28 00:47 UTC | Coastliner has opened a new station at Kahului. |
| 2026-09-28 00:47 UTC | Coastliner has opened a new station at Seattle/Tacoma. |
| 2026-09-28 00:41 UTC | Coastliner has been founded in Ontario. |
| 2026-09-26 08:40 UTC | Star Cargo has opened a new station at Ontario. |
| 2026-09-24 08:31 UTC | Star Cargo has opened a new station at Ontario. |
| 2026-09-17 00:10 UTC | AeroAmericana has opened a new station at Ontario. |
| 2026-09-12 17:32 UTC | Beta Express 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 | ||
|---|---|---|---|---|---|
| AeroAmericana | 25 Departures | ||||
|
|
Arlington Air | 14 Departures | |||
| Beta Express | 7 Departures | ||||
| Canada Connect | 7 Departures | ||||
|
|
Central Express | 218 Departures | |||
| Commonwealth Airways | 0 Departures | ||||
| Executive Select | 0 Departures | ||||
| Florida Air System | 7 Departures | ||||
| Fly Bahamas | 7 Departures | ||||
| Fly By Airways | 196 Departures | ||||
| Fly By Airways Southern | 14 Departures | ||||
| Global Freighter | 0 Departures | ||||
| Guo Air | 7 Departures | ||||
|
|
Hakutaka | 14 Departures | |||
| HongMei Airlines | 7 Departures | ||||
| HongMei Aviation Development Foundation | 0 Departures | ||||
| HongMei Cargo | 322 Departures | ||||
| Horizon West | 20 Departures | ||||
| Las Vegas Air | 41 Departures | ||||
|
|
Monja Blanca Airlines | 7 Departures | |||
|
|
ONE EXPRESS | 28 Departures | |||
| Paso Airways | 0 Departures | ||||
|
|
Russian Royal Cargo | 0 Departures | |||
|
|
SkyLink America | 98 Departures | |||
|
|
Southern California Airlines | 49 Departures | |||