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$48+ Cheap flights from Tennessee to Illinois

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — ORD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Tennessee to Illinois

Cheapest flights from Tennessee to Illinois
Explore the most affordable flight options available from Tennessee to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:46 pmBNA - ORD
1 stop11h 00mFrontier
Mon 11/246:13 amORD - BNA
Nonstop1h 37mFrontier
Deal found 10/29$82
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:00 pmBNA - ORD
Nonstop1h 50mMultiple Airlines
Thu 12/47:00 amORD - BNA
1 stop11h 46mMultiple Airlines
Deal found 10/29$91
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:10 amBNA - MDW
Nonstop1h 45mSouthwest
Mon 12/812:25 pmMDW - BNA
Nonstop1h 30mSouthwest
Deal found 10/29$97
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:19 amBNA - ORD
Nonstop1h 56mUnited Airlines
Mon 12/159:05 pmORD - BNA
Nonstop1h 44mUnited Airlines
Deal found 10/30$97
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:36 amBNA - ORD
Nonstop1h 55mAmerican Airlines
Mon 12/88:30 pmORD - BNA
Nonstop1h 50mAmerican Airlines
Deal found 10/29$98
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:49 pmBNA - ORD
Nonstop1h 48mFrontier
Mon 11/176:20 amORD - BNA
Nonstop1h 36mFrontier
Deal found 10/29$101
This Priceline deal was found by Cheapflights users on 10/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:49 pmBNA - ORD
Nonstop1h 48mFrontier
Sun 11/166:10 pmORD - BNA
Nonstop1h 48mFrontier
Deal found 10/29$102
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/193:32 pmBNA - ORD
1 stop8h 55mMultiple Airlines
Mon 11/246:13 amORD - BNA
Nonstop1h 37mMultiple Airlines
Deal found 10/29$104
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Fri 11/218:45 amBNA - ORD
Nonstop1h 53mFrontier
Mon 11/246:13 amORD - BNA
Nonstop1h 37mFrontier
Deal found 10/30$105
This Southwest deal was found by Cheapflights users on 10/28. 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.
Tue 12/910:20 amBNA - ORD
Nonstop1h 55mSouthwest
Thu 12/116:05 amORD - BNA
1 stop5h 45mSouthwest
Deal found 10/28$107
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:25 amBNA - MDW
Nonstop1h 40mSouthwest
Tue 12/98:50 amMDW - BNA
Nonstop1h 30mSouthwest
Deal found 10/29$127
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:42 pmBNA - MDW
1 stop19h 48mFrontier
Sun 11/168:32 amMDW - BNA
1 stop5h 07mFrontier
Deal found 10/29$144

Cheap flight deals from Tennessee to Illinois

Keep the following information in mind while searching for Tennessee to Illinois flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$82
(CheapOair)

One-way from

$48
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$183

Good round-trip deal

$96 or less

Good one-way deal

$97 or less
Provider with most accurate pricing for Nashville Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Nashville Intl-Chicago (CHI) flights.
Search Deals
From Tennessee to Illinois
Search Deals
One-way flight from Tennessee to Illinois
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Tennessee to Illinois.
Search Deals
Price to beat on a one-way flight from Tennessee to Illinois.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Tennessee to Illinois 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 October 30, 2025.
Use the filters below to find and compare flights from Tennessee to Illinois that are best for you.

Fly from

Tennessee

Fly to

Illinois

Route

Depart

Return

Price

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Thu 11/20

8:46 pm-7:46 am

1 stop11h 00m

Chicago O'Hare Intl

Mon 11/24

6:13 am-7:50 am

Nonstop1h 37m

$82

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Thu 12/4

8:55 pm-10:35 pm

Nonstop1h 40m

Chicago Midway

Mon 12/8

5:35 am-7:05 am

Nonstop1h 30m

$97

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Mon 12/8

8:00 am-9:50 am

Nonstop1h 50m

Chicago O'Hare Intl

Wed 12/10

12:45 pm-2:28 pm

Nonstop1h 43m

$97

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Mon 12/8

8:55 pm-10:35 pm

Nonstop1h 40m

Chicago Midway

Thu 1/1

6:35 am-8:05 am

Nonstop1h 30m

$97

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Tue 12/9

8:55 pm-10:35 pm

Nonstop1h 40m

Chicago Midway

Thu 12/11

8:30 pm-10:00 pm

Nonstop1h 30m

$97

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Tue 12/9

10:20 am-12:15 pm

Nonstop1h 55m

Chicago O'Hare Intl

Thu 12/11

6:05 am-11:50 am

1 stop5h 45m

$107

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Thu 1/15

2:52 pm-4:49 pm

Nonstop1h 57m

Chicago O'Hare Intl

Sun 1/18

5:52 pm-7:33 pm

Nonstop1h 41m

$123

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Sat 12/6

11:19 am-1:15 pm

Nonstop1h 56m

Chicago O'Hare Intl

Wed 12/10

2:00 pm-3:44 pm

Nonstop1h 44m

$127

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Sat 12/6

5:25 am-7:05 am

Nonstop1h 40m

Chicago Midway

Tue 12/9

8:50 am-10:20 am

Nonstop1h 30m

$127

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Sat 12/6

5:25 pm-7:05 pm

Nonstop1h 40m

Chicago Midway

Wed 12/10

5:35 am-7:05 am

Nonstop1h 30m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

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

Have a flexible travel schedule? Discover the best time to fly to Illinois from Tennessee 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 Tennessee to Illinois

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

Currently, February is the cheapest month in which you can book a flight from Tennessee to Illinois (average of $37). Flying from Tennessee to Illinois in June is currently the most expensive (average of $83). 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 TN to IL?

Find hourly flight availability from Tennessee to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s optimal to fly from Tennessee to Illinois at noon. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Tennessee to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Tennessee to Illinois. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Tennessee to Illinois flight should consider departing on Wednesday at noon when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Tennessee to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Tennessee to Illinois to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

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
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

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
Delta
7.9
Good
7,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

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
8,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

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
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

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
3,122 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

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 Tennessee to Illinois. 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 Tennessee to Illinois?

    There are many flights that can get you from Tennessee to Illinois in 1h 40m. Fly via Frontier, Southwest, or United Airlines to get the fastest option. The distance between Tennessee and Illinois is about 395 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $49 on Southwest. Other airlines that offer cheap prices include United Airlines from $49 and Allegiant Air from $66 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Tennessee to Illinois 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 Tennessee to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Tennessee to Illinois (average of $37). Flying from Tennessee to Illinois in June is currently the most expensive (average of $83). 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 Tennessee to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Tennessee to Illinois

Discover the top 8 airlines that operate flights from Tennessee to Illinois. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$37Average$123FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$43Average$80FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$58Average$87FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$97Average$259FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$102Average$352FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$109Average$339FlexibilityNo cancel feeOn-time71%
DeltaCheapest$110Average$375FlexibilityNo cancel feeOn-timeN/A
Denver Air ConnectionCheapest$187Average$204FlexibilityNo cancel feeOn-timeN/A

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