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Cheap Flights from Washington D.C. to Knoxville

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Compare Washington D.C. to Knoxville flight deals

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Flight deals from Washington D.C. to Knoxville

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Knoxville? Find the lowest prices on one-way and return tickets right here.
Knoxville.R 715 per passenger.Departing Mon, 7 Jul.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Washington Dulles on Mon, 7 Jul, arriving in Knoxville.Price includes taxes and charges.From R 715, select.
Knoxville.R 715 per passenger.Departing Fri, 19 Sep.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Washington Dulles on Fri, 19 Sep, arriving in Knoxville.Price includes taxes and charges.From R 715, select.
Knoxville.R 717 per passenger.Departing Mon, 30 Jun.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Washington Dulles on Mon, 30 Jun, arriving in Knoxville.Price includes taxes and charges.From R 717, select.
Knoxville.R 717 per passenger.Departing Mon, 11 Aug.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Washington Dulles on Mon, 11 Aug, arriving in Knoxville.Price includes taxes and charges.From R 717, select.
Knoxville.R 717 per passenger.Departing Fri, 3 Oct.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Washington Dulles on Fri, 3 Oct, arriving in Knoxville.Price includes taxes and charges.From R 717, select.
Knoxville.R 1,434 per passenger.Departing Wed, 24 Dec.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Washington Dulles on Wed, 24 Dec, arriving in Knoxville.Price includes taxes and charges.From R 1,434, select.

Find the cheapest month to fly from Washington D.C. to Knoxville

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to Knoxville flights are currently cheapest in July.
Jun
from R 714
Jul
from R 711
Aug
from R 714
Sep
from R 711
Oct
from R 714
Nov
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Dec
from R 1,427
Jan
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Feb
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Mar
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Apr
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May
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Direct flights from Washington D.C. to Knoxville

Washington D.C. to Knoxville: Alternative routes

Compare routes from Washington D.C. to Knoxville below. You may find an airport to fly into that's cheaper, faster, or easier than Knoxville.

Washington D.C. to Knoxville: Flight information

The things to know before you go.
Cheapest flight foundR 715
Cheapest month to flyJuly
Average flight time1 hr, 45 mins
Most popular airlineAmerican Airlines
Average flights per week398

Finding cheap flights from Washington D.C. to Knoxville: Frequently asked questions

The best price we found for a return flight from Washington D.C. to Knoxville is R 1,425. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 44 minutes is the average flight time from Washington D.C. to Knoxville.
American Airlines, PSA Airlines and CommutAir fly direct from Washington D.C. to Knoxville.
As of June 2025, there are 199 flights per week flying from Washington D.C. to Knoxville.
The cheapest month to fly from Washington D.C. to Knoxville is usually July.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Knoxville Airport on Monday, 7 July 2025.
Yes – the average flight time is 1 hour and 44 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Knoxville but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Knoxville is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Knoxville is Allegiant Air .

Travelling from Washington DC to McGhee Tyson Airport (TYS): what you need to know

  • Begin your journey at one of Washington DC's main airports, Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD). Check out your options for booking a flight from Washington DC to McGhee Tyson Airport (TYS) jetting off from either of these.

  • Knoxville (where McGhee Tyson Airport is located) and Washington DC share the UTC-4 timezone. You can fly without needing to calculate any time difference.

  • With 40 direct weekly flights between the two airports, Ronald Reagan National Airport (DCA) to McGhee Tyson Airport (TYS) is the most popular route. American Airlines operates the earliest flight at 08:10. If you'd like to make the most of your day before taking off, the last flight from DCA to TYS is with United at 22:14.

  • To ensure you catch your flight from Washington DC to TYS, allow plenty of time for things like baggage drop and finding your gate. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.

  • Going away during a peak time like July? Popular seasons (like summer, Christmas/New Year and spring break) can add another hour at check-in and security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before domestic departures.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • DCA is around 8 kilometres from the centre of Washington DC. To work out how to get there, use Google Maps. This essential travel app will show you the best route and available public transport options.

  • After a stress-free start to your trip? Stay near Ronald Reagan National Airport. Whether you're catching an early flight from Washington DC to McGhee Tyson Airport or just don't want to be rushed, these hotels have you covered:

Washington Dulles International Airport (IAD)

  • Prefer to leave from Washington Dulles International Airport (IAD)? You can reserve a direct flight from Washington DC to McGhee Tyson Airport (TYS) out of this busy hub.

  • From IAD, direct flights from Washington DC to TYS are available with United.

  • You can reach IAD from central Washington DC in approximately 51 minutes by car (depending on traffic). The ride by public transport will take roughly 3 hours and 26 minutes to travel the 56 kilometres or so.

  • Get your holiday started early with an extra night away from home. Before your flight from Washington DC to TYS, stay in one of these hotels near Washington Dulles International Airport:

About McGhee Tyson Airport (TYS)

Getting from McGhee Tyson Airport (TYS) to central Knoxville

  • From McGhee Tyson Airport, Knoxville is approximately 23 kilometres away. It takes around 19 minutes to get to the centre driving.

How to find the cheapest flights from Washington DC to McGhee Tyson Airport (TYS)

  • Lock in a one-way ticket from Washington DC to McGhee Tyson Airport from R 711 or travel return from just R 1,432. Fares listed are subject to change and may differ when you make your booking.

  • To score cheap tickets from Washington DC to TYS, book as early as possible. Airlines tend to offer their best fares when flights are first released.

  • If you're flexible with your travel plans, use the 'Whole month' tool. It'll find the lowest price across every month when searching for your ticket from Washington DC to McGhee Tyson Airport.

  • Log into your online account or use the app to set up a Price Alert. We'll notify you straight away if the price has dropped. It's easy to do, and it'll save you from looking for cheap tickets from Washington DC to TYS every day.

  • Play around with the filters to find your ideal journey. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Washington DC to McGhee Tyson Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

The best time to fly from Washington DC to McGhee Tyson Airport (TYS)

  • It's time to choose your dates for your flight from Washington DC to McGhee Tyson Airport. July is the busiest month for a trip to Knoxville. If you prefer a more peaceful vibe, go in February.

  • Before booking a flight from Washington DC to TYS, think about the kind of weather you enjoy. July is the warmest month in Knoxville, with the temperature ranging from 17ºC to 32ºC.

  • Look for cheap flights from Washington DC to McGhee Tyson Airport in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -6ºC and 11ºC on average.

More about Knoxville

  • When it comes to looking for somewhere to rest your head, you'll find the most popular stays in Knoxville right here. Explore these hotels once you've locked in your flight from Washington DC to McGhee Tyson Airport:

  • One of the best ways to experience Knoxville is to check out its most popular sights. Essential stops include Market Square, Sunsphere and World's Fair Park.

Complete your Knoxville trip with a car rental

  • Once you've locked in your hotel and cheap flight from Washington DC to McGhee Tyson Airport, the next task is choosing one of our car rentals in Knoxville. Browse the exclusive deals and instantly compare your options on price, pick-up convenience, fuel policies, and more.

Plan the rest of your trip from Washington D.C. to Knoxville

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.