Nonstop route
Washington to Baton Rouge nonstop
Yes — PSA flies DCA to BTR nonstop year-round — about 5× weekly.
DCAWashington
✈
BTRBaton Rouge
5× weekly4.7 flights a week
Year-round4.7/wk Jun vs 5.2/wk Jan
$175–$325typical one-way · median $225
985miles nonstop
Affiliate disclosure
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Fares are what people actually paid: half of the 221 tickets in the US DOT fare survey for this route sold between $175 and $325 one way, median $225. 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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