Nonstop route
Atlanta to Houston nonstop
Yes — Delta, United, Frontier and Spirit fly ATL to IAH nonstop year-round — about 13× daily.
ATLAtlanta
✈
IAHHouston
13× daily90.8 flights a week
Year-round90.8/wk Jun vs 85.1/wk Jan
$75–$225typical one-way · median $125
689miles nonstop
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Fares are what people actually paid: half of the 9,108 tickets in the US DOT fare survey for this route sold between $75 and $225 one way, median $125. 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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