FFL Helper

FFL Helper / Washington / Knoxville

WAS → TYS

Washington (WAS) to Knoxville (TYS)

Compare one-way fares for flights from Washington to Knoxville.

Lowest fare $31
Distance 429 mi
Flight time 1h 28m
Airports IAD–TYS
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By month: October 2026 from $31 · November 2026 from $31

Price calendar

October 2026

From $31 · up to $177

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27 $177 28 $104 29 $31
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31

November 2026

From $31

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Upcoming dates

Knoxville TYS

$31

Oct 29, 10:01am · 1h 28m · 0 stops

IAD → TYS · Allegiant Air

Tickets

Knoxville TYS

$31

Nov 01, 8:16am · 1h 28m · 0 stops

IAD → TYS · Allegiant Air

Tickets

Knoxville TYS

$177

Oct 27, 1:56pm · 20h 9m · 1 stop

BWI → TYS · Frontier Airlines

Tickets

About this route

This calendar shows dated one-way fares from Washington to Knoxville. Use it to see which days are cheaper before you search tickets.

Flight time and airport codes on this page are for the sample itinerary we have on file. Always confirm the live routing when you book Washington to Knoxville.