Nonstop route
Denver to San Juan nonstop
Yes — United flies DEN to SJU nonstop year-round — about daily.
DENDenver
✈
SJUSan Juan
daily7 flights a week
Year-round7/wk Jun vs 6.8/wk Jan
$300–$450typical one-way · median $350
2,733miles nonstop
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Fares are what people actually paid: half of the 482 tickets in the US DOT fare survey for this route sold between $300 and $450 one way, median $350. 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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