Ontario International Airport
Ontario, United States — flight times and distances to airports around the world, computed from published coordinates.
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
How this is worked out
- Both airports' coordinates come from OurAirports, a public-domain dataset — nothing is scraped from another flight site.
- Distance is a great-circle (haversine) figure on a mean earth radius of 6,371.0088 km, so it is the shortest path over the surface, not a road distance.
- Airborne time is that distance divided by 805 km/h, a representative jet cruise speed.
- A flat 25 minutes is added for pushback, taxi, climb, descent and taxi-in, which is why no hop is ever half an hour gate to gate.
- Winds, aircraft type and airline schedule padding are not modelled, and every route page shows the same distance at four cruise speeds so you can see what that assumption is worth.
gate-to-gate hours = 0.42 + distance km / 805
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Flight times from ONT to the nearest major hubs
Great-circle distance and estimated flight time to the closest large international airports — the realistic connecting points from Ontario.
| Hub | Code | Distance | Flight time |
|---|---|---|---|
| Los Angeles, United States | LAX | 75 km | 31m |
| San Diego, United States | SAN | 152 km | 37m |
| Las Vegas, United States | LAS | 317 km | 49m |
| Phoenix, United States | PHX | 522 km | 1h 04m |
| San Francisco, United States | SFO | 585 km | 1h 09m |
| Salt Lake City, United States | SLC | 898 km | 1h 32m |
| Denver, United States | DEN | 1,316 km | 2h 03m |
| Seattle, United States | SEA | 1,540 km | 2h 20m |
| Vancouver, Canada | YVR | 1,745 km | 2h 35m |
| Dallas-Fort Worth, United States | DFW | 1,908 km | 2h 47m |
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Questions about ONT
What is the airport code for Ontario?
Ontario International Airport uses the IATA code ONT and the ICAO code KONT. IATA codes are the three-letter ones on your boarding pass; ICAO codes are four letters and used by air traffic control.
Where is Ontario International Airport?
It sits at 34.0560° N, 117.6010° W, serving Ontario in United States, at an elevation of 944 feet.
Data from OurAirports (public domain) · Wikipedia. Flight times are great-circle estimates for planning only — always check the airline's published schedule.
