Nonstop route
Chicago to Ontario nonstop
Yes — United flies ORD to ONT nonstop in the summer season only — about daily.
ORDChicago
✈
ONTOntario
daily7 flights a week
Summer only7/wk Jun vs 1.1/wk Jan
$125–$275typical one-way · median $150
1,700miles nonstop
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Fares are what people actually paid: half of the 334 tickets in the US DOT fare survey for this route sold between $125 and $275 one way, median $150. That survey runs a couple of quarters behind, so treat it as the shape of the route's pricing rather than today's quote.
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