Nonstop route
Knoxville/Maryville to Phoenix nonstop
Yes — Allegiant flies TYS to PHX nonstop year-round — about 2× weekly.
TYSKnoxville/Maryville
✈
PHXPhoenix
2× weekly1.9 flights a week
Year-round1.9/wk Jun vs 2.3/wk Jan
$50–$125typical one-way · median $75
1,599miles nonstop
Affiliate disclosure
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Fares are what people actually paid: half of the 417 tickets in the US DOT fare survey for this route sold between $50 and $125 one way, median $75. 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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