Nonstop route
St Louis to Jacksonville nonstop
Yes — Southwest flies STL to JAX nonstop year-round — about daily.
STLSt Louis
✈
JAXJacksonville
daily8.9 flights a week
Year-round8.9/wk Jun vs 4.1/wk Jan
$125–$250typical one-way · median $175
753miles nonstop
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Fares are what people actually paid: half of the 811 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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