Cheap Flights from Washington (IAD) to Knoxville (TYS)

View AU$193 flight on Tue, 16 Sep. 2025Opens in a new window

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Cheap Flights from Washington (IAD) to Knoxville (TYS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Flight from Washington to Knoxville route information
Origin airport
Washington Dulles Intl.
Destination airport
McGhee Tyson
Distance
671 km
Average flight time
1 hour 42 mins

Your quick guide to flights from Washington to Knoxville

Pick up great flights from Washington to Knoxville

With Expedia, you have your pick of 17 flights a day with 19 airlines covering flights from Washington to Knoxville. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Washington to Knoxville that take around 1 hours.

Find cheap flights from Washington to Knoxville

From the great flight deals with prices currently ranging from to , you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Washington to Knoxville around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Knoxville is normally in .

Reasons to book your flight from Washington to Knoxville with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Washington to Knoxville across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Knoxville right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from IAD to McGhee Tyson Airport (TYS)?
The lowest price advertised for a round-trip journey from IAD to TYS is . But you better get moving. This figure is based on fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to Knoxville Airport?
Most flights can be cancelled online, but each airline has a different set of terms and conditions. If you do decide to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Dulles Intl. Airport to TYS that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Washington Dulles Intl. Airport (IAD) to TYS flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Dulles Intl. Airport to Knoxville Airport?
With a flight distance of 680 kilometres, it's only a short hop from IAD to TYS. It might be a quick journey, but it's still worth bringing along something to keep you busy on board.
Which airlines fly direct from Dulles Intl. Airport to Knoxville Airport?
If you're looking to fly straight from IAD to McGhee Tyson Airport (TYS), United Airlines (UA) is a popular choice. It operates 60 flights every month between Chantilly and Alcoa.
Are Washington Dulles Intl. Airport (IAD) to TYS flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes find a bargain, with some super cheap fares from Dulles Intl. Airport to Knoxville Airport cropping up a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates the best flight deals frequently — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines publish prices that far in advance.

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