Nonstop route
Knoxville/Maryville to Washington nonstop
Yes — Allegiant flies TYS to IAD nonstop year-round — about 2× weekly.
TYSKnoxville/Maryville
✈
IADWashington
2× weekly2.1 flights a week
Year-round2.1/wk Jun vs 1.6/wk Jan
$100–$275typical one-way · median $175
420miles nonstop
Affiliate disclosure
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Fares are what people actually paid: half of the 532 tickets in the US DOT fare survey for this route sold between $100 and $275 one way, median $175. 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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