Cheap Flights from Knoxville Airport to District of Columbia from £47 Return

Flight deals from Knoxville Airport to District of Columbia

Looking for a cheap last-minute deal or the best return flight from Knoxville Airport to District of Columbia? If you want to travel next month, return fares start from £53. Find the lowest prices on one-way and return tickets right here.

Washington D.C..£47 per passenger.Departing Fri, 17 Jul, returning Mon, 3 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Fri, 17 Jul, arriving in Washington Dulles.Inbound direct flight with Allegiant Air departs from Washington Dulles on Mon, 3 Aug, arriving in Knoxville.Price includes taxes and charges.From £47, select.

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Flying from Knoxville Airport to District of Columbia

Arm yourself with these facts on the fly.

Cheapest flight found	£47
Cheapest month to fly	July
Average flight time	1 hr, 41 mins
Average flights per week	456
Most popular airline	PSA Airlines

How to find cheap flights from Knoxville Airport to District of Columbia

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Knoxville Airport to District of Columbia. Other savvy travellers recently found return flights from £47 and one-way tickets from £23. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in July

The cheapest time to fly from Knoxville Airport to District of Columbia is currently July.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Knoxville Airport to anywhere you choose in District of Columbia.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Knoxville Airport to your chosen airport in District of Columbia go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the District of Columbia Airport to District of Columbia flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Knoxville Airport to District of Columbia?

Yes - direct flights currently operate from Knoxville Airport to Washington Dulles Airport in District of Columbia.

What is the average price of a flight from Knoxville Airport to District of Columbia?

We looked at all of the upcoming return flights from Knoxville Airport to District of Columbia we could find over the next 12 months. It looks like £47 is the best price. This is good, compared to the average District of Columbia ticket price of £47.

What is the cheapest month to fly from Knoxville Airport to District of Columbia?

The cheapest month to fly from Knoxville Airport to District of Columbia is currently July.

Which upcoming date is cheapest to fly from Knoxville Airport to District of Columbia on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Knoxville Airport to District of Columbia on Friday, 17 July 2026.

If I'm flying from Knoxville Airport, where in District of Columbia is cheapest to fly into?

If you're flying from Knoxville, the cheapest city in District of Columbia to fly into is Washington D.C.. The cheapest airport serving Washington D.C. at the moment is Washington Dulles.