Nonstop route
Mesa to Idaho Falls nonstop
Yes — Allegiant flies AZA to IDA nonstop year-round — about 5× weekly.
AZAMesa
✈
IDAIdaho Falls
5× weekly4.7 flights a week
Year-round4.7/wk Jun vs 4.5/wk Jan
$25–$100typical one-way · median $50
705miles nonstop
Affiliate disclosure
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Fares are what people actually paid: half of the 793 tickets in the US DOT fare survey for this route sold between $25 and $100 one way, median $50. 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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