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$46+ Cheap flights from Illinois to Tennessee

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BNA
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Illinois to Tennessee

Keep the following information in mind while searching for Illinois to Tennessee flight deals. Data was last updated July 31, 2025.

Round-trip from

$81
(Kiwi.com)

One-way from

$46
(Frontier)

Popular in

April

Cheapest in

February

Average price

$218

Good round-trip deal

$80 or less

Good one-way deal

$50 or less
From Illinois to Tennessee
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One-way flight from Illinois to Tennessee
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Highest demand for flights based on searches. 13% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Tennessee.
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Price to beat on a one-way flight from Illinois to Tennessee.
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Find flight deals from Illinois to Tennessee

Cheapest flights from Illinois to Tennessee
Explore the most affordable flight options available from Illinois to Tennessee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2612:31 pmORD - BNA
Nonstop1h 30mSpirit Airlines
Mon 10/273:25 pmBNA - ORD
Nonstop2h 00mSpirit Airlines
Deal found 7/30$81
This Gotogate deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/812:35 pmORD - BNA
Nonstop1h 39mFrontier
Mon 8/113:01 pmBNA - ORD
Nonstop2h 04mFrontier
Deal found 7/29$83
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/231:52 pmORD - BNA
Nonstop1h 43mMultiple Airlines
Sun 10/267:25 pmBNA - ORD
Nonstop1h 54mMultiple Airlines
Deal found 7/30$96
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:25 amMDW - BNA
Nonstop1h 25mSouthwest
Wed 9/178:50 pmBNA - MDW
Nonstop1h 35mSouthwest
Deal found 7/31$97
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/132:55 pmORD - BNA
Nonstop1h 35mSouthwest
Tue 9/1610:50 amBNA - ORD
Nonstop1h 55mSouthwest
Deal found 7/30$97
This Cheapflightsfares deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/152:54 pmMDW - TYS
Nonstop1h 28mAllegiant Air
Mon 8/181:31 pmTYS - MDW
Nonstop1h 33mAllegiant Air
Deal found 7/30$118
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:30 pmORD - BNA
Nonstop1h 35mAmerican Airlines
Sat 9/69:15 amBNA - ORD
Nonstop1h 46mAmerican Airlines
Deal found 7/31$127
This KAYAK deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/129:50 amSTL - BNA
1 stop4h 05mSouthern / Mokulele
Thu 8/142:35 pmBNA - STL
1 stop4h 06mSouthern / Mokulele
Deal found 7/30$157
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:30 amSTL - BNA
Nonstop1h 10mSouthwest
Wed 9/248:15 amBNA - STL
Nonstop1h 20mSouthwest
Deal found 7/30$177
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/271:08 pmMDW - BNA
1 stop3h 23mDelta
Tue 9/26:25 amBNA - MDW
1 stop6h 03mDelta
Deal found 7/31$177
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:05 amSTL - BNA
1 stop7h 32mAmerican Airlines
Wed 9/1712:30 pmBNA - STL
1 stop9h 23mAmerican Airlines
Deal found 7/31$180
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:56 amORD - MEM
1 stop15h 38mSpirit Airlines
Tue 9/97:00 amMEM - ORD
1 stop9h 12mSpirit Airlines
Deal found 7/31$182

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Tennessee that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Illinois to Tennessee that are best for you.

Fly from

Illinois

Fly to

Tennessee

Route

Depart

Return

Price

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Sun 10/26

12:31 pm-2:01 pm

Nonstop1h 30m

Nashville Intl

Mon 10/27

3:25 pm-5:25 pm

Nonstop2h 00m

$81

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Fri 8/8

12:35 pm-2:14 pm

Nonstop1h 39m

Nashville Intl

Mon 8/11

3:01 pm-5:05 pm

Nonstop2h 04m

$83

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Thu 10/23

1:52 pm-3:35 pm

Nonstop1h 43m

Nashville Intl

Sun 10/26

7:25 pm-9:19 pm

Nonstop1h 54m

$96

ChicagoNashville

MDW - BNA

MDWBNA

Chicago Midway

Wed 9/17

7:25 am-8:50 am

Nonstop1h 25m

Nashville Intl

Wed 9/17

8:50 pm-10:25 pm

Nonstop1h 35m

$97

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Sat 9/13

2:55 pm-4:30 pm

Nonstop1h 35m

Nashville Intl

Tue 9/16

10:50 am-12:45 pm

Nonstop1h 55m

$97

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Fri 8/15

2:54 pm-5:22 pm

Nonstop1h 28m

Knoxville McGhee Tyson

Mon 8/18

1:31 pm-2:04 pm

Nonstop1h 33m

$118

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Thu 9/4

8:30 pm-10:05 pm

Nonstop1h 35m

Nashville Intl

Sat 9/6

9:15 am-11:01 am

Nonstop1h 46m

$127

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Tue 8/12

9:50 am-1:55 pm

1 stop4h 05m

Nashville Intl

Thu 8/14

2:35 pm-6:41 pm

1 stop4h 06m

$157

ChicagoNashville

MDW - BNA

MDWBNA

Chicago Midway

Wed 8/27

1:08 pm-4:31 pm

1 stop3h 23m

Nashville Intl

Tue 9/2

6:25 am-12:28 pm

1 stop6h 03m

$177

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Mon 9/22

6:30 am-7:40 am

Nonstop1h 10m

Nashville Intl

Wed 9/24

8:15 am-9:35 am

Nonstop1h 20m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Tennessee

Have a flexible travel schedule? Discover the best time to fly to Tennessee from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Tennessee

What is the cheapest month to book a flight from Illinois to Tennessee?

Currently, January is the cheapest month in which you can book a flight from Illinois to Tennessee (average of $220). Flying from Illinois to Tennessee in June is currently the most expensive (average of $291). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to TN?

Find hourly flight availability from Illinois to Tennessee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Tennessee as you normally would.

Weekly flight availability from Illinois to Tennessee

Explore weekly flight availability from Illinois to Tennessee. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from USIL to USTN are scheduled on a Thursday (61 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 on average).

Reviews of airlines servicing Tennessee

Get insights into the airlines that provide service to Tennessee. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Tennessee. Reviews last updated July 31, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Illinois to Tennessee have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Allegiant Air
7.2
Good
702 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Tennessee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to Tennessee one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $46. However, be on the lookout for offers from United Airlines and Southwest, as they are both options that can get you from Illinois to Tennessee for a low price.

  • Can I find deals for flights from Illinois to Tennessee that include hotel bookings?

    Yes. In addition to deals on Illinois to Tennessee flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Tennessee?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Tennessee.

  • Can I find deals for business class flights from Illinois to Tennessee?

    Yes. Cheapflights offers flight deals from Illinois to Tennessee by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Tennessee?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Tennessee (average of $220). Flying from Illinois to Tennessee in June is currently the most expensive (average of $291). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Tennessee

See prices for flight routes from nearby airports that may be better suited for you.
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Dallas/Fort Worth to LaGuardia flights
John F Kennedy Intl to Los Angeles flights
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Top 8 airlines flying from Illinois to Tennessee

Discover the top 8 airlines that operate flights from Illinois to Tennessee. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$37Average$140FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$43Average$86FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$63Average$114FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$100Average$258FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$108Average$327FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$116Average$338FlexibilityNo cancel feeOn-time69%
Denver Air ConnectionCheapest$182Average$201FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$188Average$330FlexibilityNo cancel feeOn-timeN/A

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