Ontario to Chicago (ONT–ORD) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
ONT–ORD is served by 1 airline with nonstop service. United Airlines leads the route. The flight covers 1,697 miles in approximately 4h 3m. Beyond nonstop, 49 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 7 | 7M9 | 4h03 | Star Alliance | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Chicago from Ontario
| Metric | ONT→ORD | SNA→ORD | LGB→ORD |
|---|---|---|---|
| Distance from ONT | – | 30 mi | 36 mi |
| Nonstop airlines | 1 | 13 | 2 |
| Weekly flights | 7 | 159 | 2 |
| Flight time | 4h 3m | 4h 5m | 3h 20m |
| Departure OTP | 80% | – | – |
Travel Essentials
ONT: PDT · ORD: CDT
When it's 6:00 PM in Ontario, it's 8:00 PM in Chicago.
CTA Blue Line runs 24/7 from O'Hare to downtown Chicago (45 min, $5). Taxis use a flat-rate zone system; downtown is around $40–45 plus tip. Ride-shares are typically $30–50.The Airport Transit System (ATS) connects all terminals and parking. Metra commuter rail does not serve O'Hare directly; transfer downtown via Blue Line.
Continental climate with four distinct seasons. Summers are warm and humid (25–32°C) with afternoon thunderstorms. Winters are cold (−10 to −2°C) with heavy snowfall that regularly delays flights December through March.
Spring and fall are mild but unpredictable. Pack layers. Lake Michigan moderates temperatures near the lakefront, but O'Hare sits inland and runs colder.
ONT–ORD Quick Facts
Frequently Asked Questions
Flights from ONT to ORD
Ontario International Airport (ONT) and Chicago O'Hare International Airport (ORD) are connected by nonstop service from United Airlines. With 7 weekly departures, this is a regularly served route.
ONT to ORD Flight Duration and Schedule
Nonstop flight time from ONT to ORD ranges from 4 hours 3 minutes. The route covers a distance of 1,697 miles (2,730 km). There are approximately 7 weekly flights outbound and 8 return, totaling 15 flights per week in both directions.
Connecting Options and Alternatives
49 one-stop connections are available, with the fastest taking approximately 5 hours via SCF. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Santa Ana (SNA), Long Beach (LGB) and Los Angeles (LAX).