Cheap Flights from Chicago to Knoxville

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Compare Chicago to Knoxville flight deals

Find the cheapest month or even day of the year to fly to Knoxville

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Flight deals from Chicago to Knoxville

Looking for a cheap last-minute deal or the best return flight from Chicago to Knoxville Airport? If you want to travel next month, return fares start from SAR 704. Find the lowest prices on one-way and return tickets right here.

Knoxville.SAR 309 per passenger.Departing Mon, 19 Oct, returning Fri, 13 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Chicago Midway on Mon, 19 Oct, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Fri, 13 Nov, arriving in Chicago Midway.Price includes taxes and charges.From SAR 309, select.

Knoxville.SAR 309 per passenger.Departing Mon, 2 Nov, returning Fri, 13 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Chicago Midway on Mon, 2 Nov, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Fri, 13 Nov, arriving in Chicago Midway.Price includes taxes and charges.From SAR 309, select.

Knoxville.SAR 349 per passenger.Departing Mon, 19 Oct, returning Fri, 30 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Chicago Midway on Mon, 19 Oct, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Fri, 30 Oct, arriving in Chicago Midway.Price includes taxes and charges.From SAR 349, select.

Knoxville.SAR 704 per passenger.Departing Wed, 30 Sep, returning Wed, 30 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Chicago Midway on Wed, 30 Sep, arriving in Knoxville.Inbound indirect flight with Southwest Airlines, departs from Knoxville on Wed, 30 Sep, arriving in Chicago Midway.Price includes taxes and charges.From SAR 704, select.

Knoxville.SAR 772 per passenger.Departing Mon, 31 Aug, returning Sat, 5 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Chicago Midway on Mon, 31 Aug, arriving in Knoxville.Inbound indirect flight with Southwest Airlines, departs from Knoxville on Sat, 5 Sep, arriving in Chicago Midway.Price includes taxes and charges.From SAR 772, select.

Knoxville.SAR 792 per passenger.Departing Sat, 5 Dec, returning Mon, 7 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Chicago Midway on Sat, 5 Dec, arriving in Knoxville.Inbound indirect flight with Southwest Airlines, departs from Knoxville on Mon, 7 Dec, arriving in Chicago Midway.Price includes taxes and charges.From SAR 792, select.

Knoxville.SAR 890 per passenger.Departing Tue, 29 Sep, returning Tue, 6 Oct.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from Chicago O'Hare International on Tue, 29 Sep, arriving in Knoxville.Inbound indirect flight with Allegiant Air, departs from Knoxville on Tue, 6 Oct, arriving in Chicago Rockford.Price includes taxes and charges.From SAR 890, select.

Knoxville.SAR 970 per passenger.Departing Sun, 1 Nov, returning Tue, 1 Dec.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Sun, 1 Nov, arriving in Knoxville.Inbound direct flight with United departs from Knoxville on Tue, 1 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From SAR 970, select.

Knoxville.SAR 970 per passenger.Departing Mon, 28 Sep, returning Mon, 5 Oct.Return flight with American Airlines.Outbound direct flight with American Airlines departs from Chicago O'Hare International on Mon, 28 Sep, arriving in Knoxville.Inbound direct flight with American Airlines departs from Knoxville on Mon, 5 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From SAR 970, select.

Knoxville.SAR 970 per passenger.Departing Sat, 5 Sep, returning Sun, 6 Sep.Return flight with American Airlines.Outbound direct flight with American Airlines departs from Chicago O'Hare International on Sat, 5 Sep, arriving in Knoxville.Inbound direct flight with American Airlines departs from Knoxville on Sun, 6 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From SAR 970, select.

Knoxville.SAR 974 per passenger.Departing Sat, 5 Dec, returning Mon, 7 Dec.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Sat, 5 Dec, arriving in Knoxville.Inbound direct flight with United departs from Knoxville on Mon, 7 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From SAR 974, select.

Knoxville.SAR 974 per passenger.Departing Wed, 19 May, returning Wed, 9 Jun.Return flight with American Airlines.Outbound direct flight with American Airlines departs from Chicago O'Hare International on Wed, 19 May, arriving in Knoxville.Inbound direct flight with American Airlines departs from Knoxville on Wed, 9 Jun, arriving in Chicago O'Hare International.Price includes taxes and charges.From SAR 974, select.

Knoxville.SAR 995 per passenger.Departing Wed, 6 Jan, returning Tue, 12 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Chicago Midway on Wed, 6 Jan, arriving in Knoxville.Inbound indirect flight with Southwest Airlines, departs from Knoxville on Tue, 12 Jan, arriving in Chicago Midway.Price includes taxes and charges.From SAR 995, select.

Knoxville.SAR 1,009 per passenger.Departing Fri, 28 Aug, returning Mon, 31 Aug.Return flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Fri, 28 Aug, arriving in Knoxville.Inbound indirect flight with Allegiant Air, departs from Knoxville on Mon, 31 Aug, arriving in Chicago O'Hare International.Price includes taxes and charges.From SAR 1,009, select.

Knoxville.SAR 1,023 per passenger.Departing Sat, 27 Mar, returning Sat, 10 Apr.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Sat, 27 Mar, arriving in Knoxville.Inbound direct flight with United departs from Knoxville on Sat, 10 Apr, arriving in Chicago O'Hare International.Price includes taxes and charges.From SAR 1,023, select.

Knoxville.SAR 1,030 per passenger.Departing Mon, 31 Aug, returning Sat, 5 Sep.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Mon, 31 Aug, arriving in Knoxville.Inbound direct flight with United departs from Knoxville on Sat, 5 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From SAR 1,030, select.

Find the cheapest month to fly from Chicago to Knoxville

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Knoxville flights are currently cheapest in November.

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Direct flights from Chicago to Knoxville

Chicago to Knoxville: Alternative routes

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

Knoxville

18km from central Knoxville

ClosestCheapest

from SAR 309

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Chicago to Knoxville: Flight information

The things to know before you go.

Cheapest flight found	SAR 309
Cheapest month to fly	November
Average flight time	1 hr, 39 mins
Most popular airline	American Airlines
Average flights per week	325

Finding cheap flights from Chicago to Knoxville: Frequently asked questions

How much are return flights from Chicago to Knoxville?

The best price we found for a return flight from Chicago to Knoxville is SAR 309. 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.

How long does it take to fly from Chicago to Knoxville?

1 hour and 39 minutes is the average flight time from Chicago to Knoxville.

Which airlines fly direct from Chicago to Knoxville?

American Airlines, United and SkyWest Airlines fly direct from Chicago to Knoxville.

How many flights are there a week from Chicago to Knoxville?

As of August 2026, there are 325 flights per week flying from Chicago to Knoxville.

When is the cheapest time to fly from Chicago to Knoxville?

The cheapest month to fly from Chicago to Knoxville is usually November.

Which upcoming date is cheapest to fly from Chicago to Knoxville Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Knoxville Airport on Monday, 2 November 2026.

Can I get a direct flight from Chicago to Knoxville Airport?

Yes – the average flight time is 1 hour and 39 minutes.

How can I find the best flight deal to Knoxville?

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.

When is the best time to book flights to Knoxville?

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.

Which is the cheapest airline to fly from Chicago to Knoxville with?

The cheapest airline that flies to Knoxville is Allegiant Air .

How to find cheap flights to Knoxville from Chicago

Looking for cheap tickets from Chicago to Knoxville? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Chicago to Knoxville. And with us there are no hidden fees - what you see is what you pay.
Compare flight deals to Knoxville from Chicago from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
Flex your dates to find the best Chicago-Knoxville ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Knoxville from Chicago.
Set up a Price Alert. You can easily track the fare of your cheap Chicago-Knoxville flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
Fly without stops. Only interested in direct flights between Chicago and Knoxville? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
Find the cheapest Business class flights from Chicago and Knoxville. We scour the internet for the best Business, Premium Economy and First Class flight fares to Knoxville, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
Include nearby airports in your search. Widen your search for Chicago to Knoxville flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

Combine your flight to Knoxville from Chicago with hotels and car hire

Once you've secured your cheap flight ticket from Chicago to Knoxville, discover the best prices and exclusive rates for hotels in Knoxville or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.