Cheap Flights from Chicago, IL to Knoxville, TN from $48

Return flight: Knoxville – Chicago

On Cheapflightsplus.com you will find 16 direct and 612 connecting flights from Chicago to Knoxville. You can compare airfare deals from 6 airlines and multiple travel sites from $48, book and save on cheap plane tickets and last minute offers. Also check out CHI-TYS flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

Below we will explain in detail what the flights cost on the destination from Chicago to Knoxville depends on and how to choose the most interesting flight option for you.

Distance between Chicago and Knoxville is 745 miles. Time difference between the cities is 1h. Airplanes depart 05:00 to 22:15 from 7 Chicago airports and arrive 05:00 to 22:15 to 1 Knoxville airport. Average flight time is 1h 48m.

  • The fastest flight 1h 25m
  • Average flight time 1h 48m
  • The earliest flight 05:00
  • The latest flight 22:15
  • Distance 463 ml

The cheapest months to travel to Knoxville are may (from 48 $), august (from 48 $), june (from 50 $).

The most expensive months are december (from 318 $), september (from 261 $), october (from 101 $).

What is the lowest airfare Chicago to Knoxville?

The cheapest plane ticket found by our users is $48. This airfare is for economy class on one-way G41430 flight by Allegiant Air for August 8, 2025 which leaves Midway in Chicago at 14:46 am and arrives at Knoxville Mc Ghee Tyson at 17:12.

Economy class
$48
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Business class
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First class
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Flight Schedule Chicago (Illinois) to Knoxville (Tennessee)

06:00 — 16:29
9h 29m flight time
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from$108
06:00 — 08:02 Chicago — Denver
F91483 Frontier Airlines
3h 50m stop
11:41 — 16:35 Denver — Knoxville
F92374 Frontier Airlines
07:15 — 20:41
12h 26m flight time
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from$101
07:15 — 11:03 Chicago — Sanford
NK3200 Spirit Airlines
8h 3m stop
19:06 — 20:41 Sanford — Knoxville
G42839 Allegiant Air
07:25 — 10:17
1h 52m flight time
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from$245
Chicago — Knoxville
UA5726 United Airlines
10:35 — 13:25
1h 50m flight time
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from$244
Chicago — Knoxville
UA4194 United Airlines
10:35 — 13:21
1h 46m flight time
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from$245
Chicago — Knoxville
UA5836 United Airlines
14:10 — 17:00
1h 50m flight time
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from$244
Chicago — Knoxville
UA5399 United Airlines
14:44 — 16:29+1day
24h 45m flight time
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from$105
14:44 — 16:33 Chicago — Denver
F92209 Frontier Airlines
19h 8m stop
11:41 — 16:35 Denver — Knoxville
F92374 Frontier Airlines
14:46 — 17:12
1h 26m flight time
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from$48
Chicago — Knoxville
G41430 Allegiant Air
14:53 — 17:18
1h 25m flight time
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from$50
Chicago — Knoxville
G43025 Allegiant Air
14:54 — 17:22
1h 28m flight time
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from$52
Chicago — Knoxville
G43036 Allegiant Air
14:54 — 17:20
1h 26m flight time
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from$57
Chicago — Knoxville
G43046 Allegiant Air
15:46 — 18:38
1h 52m flight time
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from$245
Chicago — Knoxville
UA454 United Airlines
18:17 — 16:11+1day
20h 54m flight time
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from$110
18:17 — 19:57 Chicago — Minneapolis
SY262 Sun Country Airlines
17h 11m stop
13:08 — 16:11 Minneapolis — Knoxville
G41416 Allegiant Air
19:00 — 21:28
1h 28m flight time
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from$48
Chicago — Knoxville
G41433 Allegiant Air
21:08 — 12:50+1day
14h 42m flight time
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from$107
21:08 — 00:29 Chicago — Newark
NK2542 Spirit Airlines
10h 26m stop
10:55 — 12:50 Newark — Knoxville
G43024 Allegiant Air
Full flight schedule will help you in detecting at what time planes fly from Chicago to Knoxville. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on October 16, 2025.

Popular Airlines on the Route

The flight Chicago — Knoxville is served by 6 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 3 departures per week at the price of from $ 105 . And the most expensive tickets are offered by United Airlines airline - from $ 703.

Direct flights

There are 16 nonstop flights on the route. The fastest direct flight is G43025 by Allegiant Air takes 1h 25m and the cheapest is G41430 by Allegiant Air for $48.

  • UA - United Airlines
    from $244
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  • G4 - Allegiant Air
    from $48
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See more direct flights

Connecting Flights

There are 612 flights with layovers on the route. The fastest connecting flight is UA2029 by United Airlines takes 4h 41m and the cheapest is G41430 by Allegiant Air for $101.

  • F9 - Frontier Airlines
    from $105
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  • SY - Sun Country Airlines
    from $110
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  • UA - United Airlines
    from $239
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  • KG - Aerogaviota
    from $303
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  • NK - Spirit Airlines
    from $101
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  • G4 - Allegiant Air
    from $115
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See more connecting flights

Airports

You can fly from Chicago to Knoxville from 7 airports (O'Hare International, Midway, Dupage County, Chicago FSS, Merrill C Meigs (closed), Pal-Waukee, Chicago NAS).

Chicago airports

  • O'Hare International-ORD
    from $101
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  • Midway-MDW
    from $48
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  • Dupage County-DPA
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  • Chicago FSS-CHI
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  • Merrill C Meigs (closed)-CGX
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  • Pal-Waukee-PWK
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  • Chicago NAS-NOH
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Knoxville airports

  • Mc Ghee Tyson-TYS
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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