Cheap flights from Knoxville to Washington

One-way fares from $32 · TYS → WAS · prices found by travellers in the last 48 hours

Compare all dates Washington → Knoxville
Cheapest fare
$32

Allegiant Air · Sun, Nov 15

Cheapest month
November

from $32

Direct flights
Yes

Allegiant Air and American Airlines

Flight time
1h 28m

690 km

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Cheapest month to fly from Knoxville to Washington

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $32

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Allegiant Air
Depart07:30 Sun, Nov 15TYS → IAD 1h 28m · Direct
$32one way, per person
View deal
American Airlines
Depart06:48 Fri, Nov 13TYS → DCA 1h 47m · Direct
$94one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Washington

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in WashingtonCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in WashingtonTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in WashingtonPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in WashingtonCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Knoxville to Washington

Knoxville (TYS) and Washington (WAS) are about 690 km apart. Direct flights take around 1h 28m, and recent direct fares were with Allegiant Air and American Airlines. Over the next few months, one-way fares start from $32, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Knoxville to Washington?

The cheapest one-way fare we've seen recently is $32 with Allegiant Air, departing Sunday, November 15, 2026.

What is the cheapest month to fly from Knoxville to Washington?

November 2026 currently has the lowest fares, from $32 one way.

Are there direct flights from Knoxville to Washington?

Yes. Recent direct fares were with Allegiant Air and American Airlines.

How long is the flight from Knoxville to Washington?

A direct flight takes about 1h 28m. Knoxville and Washington are around 690 km apart.

Which airlines fly from Knoxville to Washington?

Recent fares on this route were with Allegiant Air and American Airlines.

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