Nonstop flights from Chicago to Ontario
United Airlines flies this route daily.
ORDChicago O'Hare International
1,696 mi · 7 flights a week
ONTOntario International
When they leave
Chicago time8:18p8:18pDeparts 8:18 PM
One departure, at 8:18 PM. It runs daily.
Every flight
Earliest first
Schedules last checked Sep 19, 2026. Times are local.
Flying from Chicago to Ontario
United Airlines is the only airline flying nonstop from Chicago to Ontario, daily on the Boeing 737.
The flight covers 1,696 miles.
Flying back, Ontario to Chicago has 7 nonstop flights a week. Midway (MDW) also has nonstop flights to Ontario, 7 a week.
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Schedules as of Oct 9, 2026.