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$49+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BNA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$99
(SmartFares)

One-way from

$49
(Booking.com)

Popular in

April

Cheapest in

February

Average price

$200

Good round-trip deal

$68 or less

Good one-way deal

$49 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. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This SmartFares deal was found by Cheapflights users on 6/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/14:37 pmORD - BNA
Nonstop1h 29mSpirit Airlines
Mon 8/47:27 pmBNA - ORD
Nonstop2h 03mSpirit Airlines
Deal found 6/11$99
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:30 amMDW - BNA
1 stop2h 45mSouthwest
Mon 11/178:55 pmBNA - MDW
Nonstop1h 40mSouthwest
Deal found 6/11$103
This Southwest deal was found by Cheapflights users on 6/12. 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.
Thu 8/72:55 pmORD - BNA
Nonstop1h 35mSouthwest
Mon 8/1112:10 pmBNA - ORD
2 stops9h 20mSouthwest
Deal found 6/12$112
This American Airlines deal was found by Cheapflights users on 6/12. 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 9/46:47 pmORD - BNA
Nonstop1h 37mAmerican Airlines
Sat 9/67:20 amBNA - ORD
Nonstop2h 00mAmerican Airlines
Deal found 6/12$118
This Frontier deal was found by Cheapflights users on 6/12. 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.
Mon 8/257:18 pmORD - BNA
Nonstop1h 51mFrontier
Mon 9/19:54 pmBNA - ORD
Nonstop2h 01mFrontier
Deal found 6/12$119
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:15 amORD - BNA
Nonstop1h 40mUnited Airlines
Wed 10/158:00 amBNA - ORD
Nonstop1h 53mUnited Airlines
Deal found 6/10$127
This Priceline deal was found by Cheapflights users on 6/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1112:35 pmORD - BNA
Nonstop1h 39mMultiple Airlines
Mon 7/147:27 pmBNA - ORD
Nonstop2h 03mMultiple Airlines
Deal found 6/11$129
This Cheapflightsfares deal was found by Cheapflights users on 6/9. 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.
Mon 8/42:46 pmMDW - TYS
Nonstop1h 26mAllegiant Air
Mon 8/111:23 pmTYS - MDW
Nonstop1h 33mAllegiant Air
Deal found 6/9$136
This Southwest deal was found by Cheapflights users on 6/12. 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.
Thu 8/76:50 pmSTL - BNA
Nonstop1h 10mSouthwest
Mon 8/117:15 amBNA - STL
Nonstop1h 15mSouthwest
Deal found 6/12$157
This KAYAK deal was found by Cheapflights users on 6/12. 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.
Mon 6/239:50 amSTL - BNA
1 stop4h 05mSouthern / Mokulele
Tue 6/242:35 pmBNA - STL
1 stop4h 06mSouthern / Mokulele
Deal found 6/12$160
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/72:20 pmORD - MEM
Nonstop1h 49mAmerican Airlines
Sun 8/1010:33 amMEM - ORD
Nonstop1h 59mAmerican Airlines
Deal found 6/11$164
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3110:55 pmMDW - MEM
Nonstop1h 40mSouthwest
Mon 8/45:00 amMEM - MDW
Nonstop1h 35mSouthwest
Deal found 6/10$164

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 June 12, 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

Fri 8/1

4:37 pm-6:06 pm

Nonstop1h 29m

Nashville Intl

Mon 8/4

7:27 pm-9:30 pm

Nonstop2h 03m

$99

ChicagoNashville

MDW - BNA

MDWBNA

Chicago Midway

Thu 8/7

9:45 pm-11:10 pm

Nonstop1h 25m

Nashville Intl

Mon 8/11

2:55 pm-7:30 pm

1 stop4h 35m

$107

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Thu 8/7

2:55 pm-4:30 pm

Nonstop1h 35m

Nashville Intl

Mon 8/11

12:10 pm-9:30 pm

2 stops9h 20m

$112

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Thu 9/4

6:47 pm-8:24 pm

Nonstop1h 37m

Nashville Intl

Sat 9/6

7:20 am-9:20 am

Nonstop2h 00m

$118

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Mon 8/25

7:18 pm-9:09 pm

Nonstop1h 51m

Nashville Intl

Mon 9/1

9:54 pm-11:55 pm

Nonstop2h 01m

$119

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Fri 7/11

12:35 pm-2:14 pm

Nonstop1h 39m

Nashville Intl

Mon 7/14

7:27 pm-9:30 pm

Nonstop2h 03m

$129

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Mon 8/4

2:46 pm-5:12 pm

Nonstop1h 26m

Knoxville McGhee Tyson

Mon 8/11

1:23 pm-1:56 pm

Nonstop1h 33m

$136

ChicagoNashville

ORD - BNA

ORDBNA

Chicago O'Hare Intl

Wed 7/9

10:43 am-12:28 pm

Nonstop1h 45m

Nashville Intl

Sun 7/13

7:30 am-9:28 am

Nonstop1h 58m

$145

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 8/7

6:50 pm-8:00 pm

Nonstop1h 10m

Nashville Intl

Mon 8/11

7:15 am-8:30 am

Nonstop1h 15m

$157

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Mon 6/23

9:50 am-1:55 pm

1 stop4h 05m

Nashville Intl

Tue 6/24

2:35 pm-6:41 pm

1 stop4h 06m

$160

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 $289). 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 June 12, 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 June 12, 2025.

The most flights from USIL to USTN are scheduled on a Thursday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (38 on average).

Rainfall in Tennessee by month

Plan your trip to Tennessee by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Tennessee ranges from 2.8 - 5.0 inches per month. May is typically the wettest month, when rainfall can reach 5.0 in. October is typically the driest time to visit Tennessee when rainfall is around 2.8 in.

Temperature in Tennessee by month

Plan your trip to Tennessee by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Tennessee, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

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 June 12, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Illinois to Tennessee have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,925 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Allegiant Air
7.3
Good
725 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 Allegiant Air, with whom users have recently found tickets for as low as $49. However, be on the lookout for offers from Spirit 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 $289). 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

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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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Top 7 airlines flying from Illinois to Tennessee

Discover the top 7 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$37Average$138FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$39Average$86FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$63Average$114FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$109Average$262FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$109Average$354FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$111Average$333FlexibilityNo cancel feeOn-time69%
DeltaCheapest$143Average$331FlexibilityNo cancel feeOn-timeN/A

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