Cheap Flights from Knoxville, TN to Chicago, IL from $51

Return flight: Chicago – Knoxville

On Cheapflightsplus.com you will find 13 direct and 554 connecting flights from Knoxville to Chicago. You can compare airfare deals from 3 airlines and multiple travel sites from $51, book and save on cheap plane tickets and last minute offers. Also check out TYS-CHI flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Knoxville to Chicago Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $51 (one-way), $87 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Knoxville to Chicago. 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 Arrival Flight Details Flight Duration Price
07:00 — 07:55
07:00 — 07:55 UA1562 United Airlines
Knoxville — Chicago
1h 55m
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from$265
07:00 — 07:57
07:00 — 07:57 UA1594 United Airlines
Knoxville — Chicago
1h 57m
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from$267
10:55 — 11:58
10:55 — 11:58 UA5921 United Airlines
Knoxville — Chicago
2h 3m
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from$268
13:29 — 14:03
13:29 — 14:03 G43062 Allegiant Air
Knoxville — Chicago
1h 34m
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from$51
13:31 — 14:04
13:31 — 14:04 G43026 Allegiant Air
Knoxville — Chicago
1h 33m
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from$61
13:31 — 14:04
13:31 — 14:04 G43027 Allegiant Air
Knoxville — Chicago
1h 33m
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from$67
13:56 — 14:55
13:56 — 14:55 UA5844 United Airlines
Knoxville — Chicago
1h 59m
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from$268
13:58 — 14:59
13:58 — 14:59 UA4388 United Airlines
Knoxville — Chicago
2h 1m
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from$265
14:00 — 15:02
14:00 — 15:02 UA4513 United Airlines
Knoxville — Chicago
2h 2m
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from$265
14:04 — 15:08
14:04 — 15:08 UA3649 United Airlines
Knoxville — Chicago
2h 4m
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from$400
17:33 — 18:35
17:33 — 18:35 UA4606 United Airlines
Knoxville — Chicago
2h 2m
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from$399
17:35 — 18:37
17:35 — 18:37 UA5767 United Airlines
Knoxville — Chicago
2h 2m
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from$265
17:38 — 18:42
17:38 — 18:42 UA5237 United Airlines
Knoxville — Chicago
2h 4m
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from$266
06:00 — 20:03
06:00 — 07:34 G41439 Allegiant Air
Knoxville — Orlando
10h 21m stop
17:55 — 20:03 NK2541 Spirit Airlines
Orlando — Chicago
15h 3m
including layover
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from$135
06:00 — 23:29
06:00 — 07:34 G41439 Allegiant Air
Knoxville — Orlando
13h 51m stop
21:25 — 23:29 NK2190 Spirit Airlines
Orlando — Chicago
18h 29m
including layover
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from$135
07:15 — 06:32
+1 day
07:15 — 09:05 G41396 Allegiant Air
Knoxville — Newark
19h 55m stop
05:55 — 07:27 NK2543 Spirit Airlines
Newark — Chicago
24h 17m
including layover
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from$113
08:00 — 08:22
+1 day
08:00 — 08:21 G41398 Allegiant Air
Knoxville — Fort Walton Beach
21h 39m stop
06:00 — 08:22 G41455 Allegiant Air
Fort Walton Beach — Chicago
25h 22m
including layover
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from$105
10:54 — 20:40
10:54 — 12:58 G4494 Allegiant Air
Knoxville — Miami
5h 22m stop
18:20 — 20:40 NK3 Spirit Airlines
Miami — Chicago
10h 46m
including layover
Find flight
from$116
10:59 — 17:21
10:59 — 12:18 G43024 Allegiant Air
Knoxville — Minneapolis
3h 24m stop
15:42 — 17:21 SY259 Sun Country Airlines
Minneapolis — Chicago
7h 22m
including layover
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from$115
11:01 — 17:15
11:01 — 12:19 G41414 Allegiant Air
Knoxville — Minneapolis
3h 17m stop
15:36 — 17:15 SY259 Sun Country Airlines
Minneapolis — Chicago
7h 14m
including layover
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from$111
11:01 — 12:28
+1 day
11:01 — 12:19 G41414 Allegiant Air
Knoxville — Minneapolis
22h 31m stop
10:50 — 12:28 SY1629 Sun Country Airlines
Minneapolis — Chicago
26h 27m
including layover
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from$111
14:28 — 06:03
+1 day
14:28 — 15:35 G444 Allegiant Air
Knoxville — Las Vegas
8h 59m stop
00:34 — 06:03 NK1053 Spirit Airlines
Las Vegas — Chicago
16h 35m
including layover
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from$150
14:47 — 00:05
+1 day
14:47 — 16:51 G4487 Allegiant Air
Knoxville — Miami
5h 1m stop
21:52 — 00:05 NK1 Spirit Airlines
Miami — Chicago
10h 18m
including layover
Find flight
from$145
15:34 — 09:55
+1 day
15:34 — 17:38 G4488 Allegiant Air
Knoxville — Miami
14h 2m stop
07:40 — 09:55 NK2 Spirit Airlines
Miami — Chicago
19h 21m
including layover
Find flight
from$116
15:34 — 14:34
+1 day
15:34 — 17:38 G4488 Allegiant Air
Knoxville — Miami
18h 39m stop
12:17 — 14:34 NK866 Spirit Airlines
Miami — Chicago
24h
including layover
Find flight
from$137
17:25 — 23:43
17:30 — 19:01 F94369 Frontier Airlines
Knoxville — Denver
1h 17m stop
20:22 — 23:52 F93174 Frontier Airlines
Denver — Chicago
7h 18m
including layover
Find flight
from$104
17:25 — 11:40
+1 day
17:25 — 18:48 F94369 Frontier Airlines
Knoxville — Denver
13h 27m stop
08:15 — 11:40 F92210 Frontier Airlines
Denver — Chicago
19h 15m
including layover
Find flight
from$125
20:54 — 08:55
+1 day
20:54 — 22:55 G42154 Allegiant Air
Knoxville — Miami
7h 45m stop
06:40 — 08:55 NK1986 Spirit Airlines
Miami — Chicago
13h 1m
including layover
Find flight
from$126
20:54 — 08:55
+1 day
20:54 — 22:55 G4533 Allegiant Air
Knoxville — Miami
7h 45m stop
06:40 — 08:55 NK1986 Spirit Airlines
Miami — Chicago
13h 1m
including layover
Find flight
from$137
07:15 — 00:05
+1 day
07:15 — 09:05 G41396 Allegiant Air
Knoxville — Newark
8h 34m stop
17:39 — 20:43 NK2692 Spirit Airlines
Newark — Miami
1h 9m stop
21:52 — 00:05 NK1 Spirit Airlines
Miami — Chicago
17h 50m
including layover
Find flight
from$123
08:00 — 20:40
08:00 — 10:11 G41396 Allegiant Air
Knoxville — Boston
1h 45m stop
11:56 — 15:17 NK2887 Spirit Airlines
Boston — Miami
3h 3m stop
18:20 — 20:40 NK3 Spirit Airlines
Miami — Chicago
13h 40m
including layover
Find flight
from$128
12:45 — 23:29
+1 day
12:45 — 14:23 G41397 Allegiant Air
Knoxville — Baltimore
22h 28m stop
12:51 — 15:14 NK1961 Spirit Airlines
Baltimore — Orlando
6h 11m stop
21:25 — 23:29 NK2190 Spirit Airlines
Orlando — Chicago
35h 44m
including layover
Find flight
from$107
12:45 — 08:50
+1 day
12:45 — 14:23 G41397 Allegiant Air
Knoxville — Baltimore
5h 34m stop
19:57 — 22:38 NK2563 Spirit Airlines
Baltimore — Miami
7h 52m stop
06:30 — 08:50 NK2188 Spirit Airlines
Miami — Chicago
21h 5m
including layover
Find flight
from$130
18:34 — 08:22
+1 day
18:34 — 18:51 G43024 Allegiant Air
Knoxville — Belleville
2h 11m stop
21:02 — 22:45 G43102 Allegiant Air
Belleville — Fort Walton Beach
7h 15m stop
06:00 — 08:22 G41455 Allegiant Air
Fort Walton Beach — Chicago
14h 48m
including layover
Find flight
from$149
19:43 — 16:25
+1 day
19:43 — 21:14 G43027 Allegiant Air
Knoxville — Sanford
13h 23m stop
10:37 — 11:28 G4360 Allegiant Air
Sanford — Nashville
3h stop
14:28 — 16:25 NK2028 Spirit Airlines
Nashville — Chicago
21h 42m
including layover
Find flight
from$146
*Departure and arrival times - local. Updated on August 8, 2025

Flight Information

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

Distance between Knoxville and Chicago is 745 miles. Time difference between the cities is 1h. Airplanes depart 05:45 to 21:34 from 1 Knoxville airport and arrive 05:45 to 21:34 to 7 Chicago airports. Average flight time is 2h 1m.

  • The fastest flight 1h 33m
  • Average flight time 2h 1m
  • The earliest flight 05:45
  • The latest flight 21:34
  • Distance 463 ml

The cheapest months to travel to Chicago are july (from 50 $), june (from 51 $), may (from 55 $).

The most expensive months are november (from 590 $), december (from 450 $), february (from 159 $).

What is the lowest airfare Knoxville to Chicago?

The cheapest plane ticket found by our users is $51. This airfare is for economy class on one-way G43062 flight by Allegiant Air for June 6, 2025 which leaves Mc Ghee Tyson in Knoxville at 13:29 am and arrives at Chicago Midway at 14:03.

Economy class
$51
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Business class
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First class
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Popular Airlines on the Route

The flight Knoxville — Chicago is served by 3 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 3 departures per week at the price of from $ 104 . And the most expensive tickets are offered by United Airlines airline - from $ 843.

Direct flights

There are 13 nonstop flights on the route. The fastest direct flight is G43026 by Allegiant Air takes 1h 33m and the cheapest is G43062 by Allegiant Air for $51.

  • UA - United Airlines
    from $265
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  • G4 - Allegiant Air
    from $51
    Find
See more direct flights

Connecting Flights

There are 554 flights with layovers on the route. The fastest connecting flight is UA4324 by United Airlines takes 4h 50m and the cheapest is G43062 by Allegiant Air for $104.

  • F9 - Frontier Airlines
    from $104
    Find
  • UA - United Airlines
    from $159
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  • G4 - Allegiant Air
    from $105
    Find
See more connecting flights

Airports

You can fly from Knoxville to Chicago from 1 airports (Mc Ghee Tyson).

Knoxville airports

  • Mc Ghee Tyson-TYS
    from $51
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Chicago airports

  • O'Hare International-ORD
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  • Midway-MDW
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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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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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