Ontario to Chicago flights
Direct and connecting flights from Ontario International Airport (ONT) to Chicago O'Hare International Airport (ORD) — airlines, aircraft types, and the safety record for this route.
Route FAQ
How long does the flight from Ontario to Chicago take?
Flight time from Ontario (ONT) to Chicago (ORD) depends on routing, aircraft type, and whether the flight is direct or connecting. A direct flight typically reflects great-circle distance plus winds, while one-stop options can add several hours depending on the layover airport. The typical block time and frequency we have observed for this route are shown above.
Which airlines fly from Ontario to Chicago?
Airline availability for ONT to ORD changes by season and sometimes week to week as carriers adjust capacity. The airlines and aircraft types observed operating this route, both direct and connecting, are listed below based on real flight-tracking data.
Are there direct flights from Ontario to Chicago?
Direct (nonstop) availability on ONT to ORD varies by date, day of week, and season. Busy city pairs usually have multiple daily nonstops, while thinner routes may only have direct service a few days per week or only during peak seasons.
No fatal or serious occurrence involving any operator on this pair in the last 90 days.
- UPS76
- European Air ExpressNo data
| Carrier | Sightings / 90d | Safety events |
|---|---|---|
| UPS | 1 sighting | No recorded events |
| European Air Express | 1 sighting | No recorded events |
Planning ONT → ORD
ONT to ORD is a medium-haul route of 2,730 km (1,696 mi). See the return ORD → ONT route.
Alternative airports near Ontario: Upland (CCB) — 10 km, Chino (CNO) — 10 km, La Verne (POC) — 17 km.
Alternative airports near Chicago: Chicago-Wheeling (PWK) — 15 km, Chicago (MDW) — 25 km, Chicago (CGX) — 28 km.