Nonstop route
Santa Rosa to Portland nonstop
Yes — Alaska flies STS to PDX nonstop year-round — about daily.
STSSanta Rosa
✈
PDXPortland
daily14.2 flights a week
Year-round14.2/wk Jun vs 9.5/wk Jan
$125–$275typical one-way · median $175
489miles nonstop
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Fares are what people actually paid: half of the 705 tickets in the US DOT fare survey for this route sold between $125 and $275 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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