Nonstop route
Austin to Ontario nonstop
Yes — Southwest flies AUS to ONT nonstop year-round — about daily.
AUSAustin
✈
ONTOntario
daily7 flights a week
Year-round7/wk Jun vs 5.9/wk Jan
$125–$250typical one-way · median $175
1,196miles nonstop
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Fares are what people actually paid: half of the 695 tickets in the US DOT fare survey for this route sold between $125 and $250 one way, median $175. 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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