HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tennessee

$40+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BNA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Tennessee with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 September 11, 2025.

Round-trip from

$80
(CheapOair)

One-way from

$40
(CheapOair)

Popular in

April

Cheapest in

February

Average price

$180

Good round-trip deal

$80 or less

Good one-way deal

$58 or less
From Illinois to Tennessee
Search Deals
One-way flight from Illinois to Tennessee
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Tennessee.
Search Deals
Price to beat on a one-way flight from Illinois to Tennessee.
Search Deals

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 September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/244:44 pmORD - BNA
Nonstop1h 40mSpirit Airlines
Mon 10/272:01 pmBNA - ORD
Nonstop1h 48mSpirit Airlines
Deal found 9/10$80
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/312:31 pmORD - BNA
Nonstop1h 43mFrontier
Mon 10/63:11 pmBNA - ORD
Nonstop2h 05mFrontier
Deal found 9/10$83
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:06 pmORD - BNA
Nonstop1h 44mFrontier
Sun 11/28:49 pmBNA - ORD
Nonstop1h 48mFrontier
Deal found 9/9$84
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:53 pmORD - BNA
Nonstop1h 43mFrontier
Mon 9/293:21 pmBNA - ORD
Nonstop2h 05mFrontier
Deal found 9/8$88
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/177:20 pmORD - BNA
Nonstop1h 44mFrontier
Mon 10/209:59 pmBNA - ORD
Nonstop1h 45mFrontier
Deal found 9/8$89
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/314:44 pmORD - BNA
Nonstop1h 40mSpirit Airlines
Sun 11/29:02 pmBNA - ORD
Nonstop1h 47mSpirit Airlines
Deal found 9/10$90
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Thu 10/161:26 pmORD - BNA
Nonstop1h 44mSpirit Airlines
Fri 10/172:01 pmBNA - ORD
Nonstop1h 48mSpirit Airlines
Deal found 9/9$91
This Frontier deal was found by Cheapflights users on 9/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:31 pmORD - BNA
Nonstop1h 43mFrontier
Thu 10/93:24 pmBNA - ORD
Nonstop1h 55mFrontier
Deal found 9/11$92
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:06 pmORD - BNA
Nonstop1h 48mFrontier
Sun 11/98:53 pmBNA - ORD
Nonstop1h 48mFrontier
Deal found 9/10$93
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/91:26 pmORD - BNA
Nonstop1h 44mMultiple Airlines
Mon 10/139:59 pmBNA - ORD
Nonstop1h 45mMultiple Airlines
Deal found 9/9$94
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/91:26 pmORD - BNA
Nonstop1h 44mMultiple Airlines
Thu 10/163:24 pmBNA - ORD
Nonstop1h 55mMultiple Airlines
Deal found 9/9$96
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/2312:53 pmORD - BNA
Nonstop1h 36mFrontier
Sat 10/254:38 pmBNA - ORD
1 stop7h 15mFrontier
Deal found 9/9$97

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 September 11, 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

Tue 10/14

10:55 am-12:35 pm

Nonstop1h 40m

Nashville Intl

Wed 10/15

3:10 pm-5:10 pm

Nonstop2h 00m

$101

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Tue 10/21

7:30 am-12:35 pm

1 stop5h 05m

Nashville Intl

Wed 10/22

10:55 am-12:45 pm

Nonstop1h 50m

$111

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Sat 10/25

1:30 pm-8:10 pm

1 stop6h 40m

Nashville Intl

Tue 10/28

10:55 am-12:45 pm

Nonstop1h 50m

$111

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Wed 10/22

3:10 pm-4:45 pm

Nonstop1h 35m

Nashville Intl

Sat 10/25

6:05 am-11:50 am

1 stop5h 45m

$111

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Wed 10/29

7:00 am-3:25 pm

2 stops8h 25m

Nashville Intl

Sat 11/1

2:35 pm-4:25 pm

Nonstop1h 50m

$116

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Sat 11/8

5:52 pm-7:33 pm

Nonstop1h 41m

Nashville Intl

Mon 11/10

4:48 pm-6:55 pm

Nonstop2h 07m

$117

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Fri 10/17

7:15 am-8:55 am

Nonstop1h 40m

Nashville Intl

Sat 10/18

3:10 pm-5:10 pm

Nonstop2h 00m

$117

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Wed 10/15

5:45 pm-10:40 pm

1 stop4h 55m

Nashville Intl

Wed 10/22

5:45 am-1:05 pm

1 stop7h 20m

$121

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Tue 10/28

1:30 pm-8:45 pm

1 stop7h 15m

Nashville Intl

Sat 11/1

9:20 am-4:45 pm

1 stop7h 25m

$121

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Sat 10/4

1:30 pm-8:10 pm

1 stop6h 40m

Nashville Intl

Wed 10/15

5:45 am-1:05 pm

1 stop7h 20m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results
1
2
3
...
6

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 $290). 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 September 11, 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 September 11, 2025.

The most flights from USIL to USTN are scheduled on a Thursday (55 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (31 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 September 11, 2025.
See what other customers who have flown with Southwest, United Airlines, and American 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
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Allegiant Air
7.2
Good
702 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Illinois to Tennessee?

    For as low as $101, United Airlines can have you in Tennessee from Illinois in 1h 40m. The distance between Illinois and Tennessee is about 410 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $51. However, be on the lookout for offers from Southwest and Allegiant Air, 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 $290). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Tennessee

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to John F Kennedy Intl flights
John F Kennedy Intl to Miami flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to O'Hare Intl flights
San Francisco to John F Kennedy Intl flights
LaGuardia to Dallas/Fort Worth flights
Newark to Las Vegas flights
Newark to Fort Lauderdale flights
John F Kennedy Intl to O'Hare Intl flights
Seattle to Las Vegas flights
LaGuardia to O'Hare Intl flights
Newark to Miami flights
LaGuardia to Fort Lauderdale flights
Newark to O'Hare Intl flights
O'Hare Intl to John F Kennedy Intl flights
Los Angeles to Newark flights
John F Kennedy Intl to Dallas/Fort Worth flights
O'Hare Intl to LaGuardia flights
Los Angeles to Seattle flights
LaGuardia to Miami flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to Newark flights
John F Kennedy Intl to Orlando flights
Newark to Dallas/Fort Worth flights
O'Hare Intl to Newark flights
San Francisco to Newark flights
O'Hare Intl to Dallas/Fort Worth flights
Newark to Los Angeles flights
Dallas/Fort Worth to Denver flights
O'Hare Intl to Las Vegas flights
Los Angeles to LaGuardia flights
Dallas/Fort Worth to Seattle flights
Atlanta to John F Kennedy Intl flights
Los Angeles to O'Hare Intl flights
Seattle to Los Angeles flights
John F Kennedy Intl to Fort Lauderdale flights
Dulles Intl to Dallas/Fort Worth flights
Newark to Orlando flights
Seattle to Dallas/Fort Worth flights
John F Kennedy Intl to Atlanta flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to Las Vegas flights
Los Angeles to San Francisco flights
LaGuardia to Denver flights
Fort Lauderdale to LaGuardia flights
Los Angeles to Honolulu flights

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$37Average$138FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$38Average$86FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$68Average$108FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$108Average$339FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$109Average$258FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$119Average$340FlexibilityNo cancel feeOn-time69%
Denver Air ConnectionCheapest$182Average$203FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$193Average$305FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.