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$54+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — ORD
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$74
(Kiwi.com)

One-way from

$54
(CheapOair)

Popular in

March

Cheapest in

May

Average price

$243

Good round-trip deal

$65 or less

Good one-way deal

$118 or less
Provider with most accurate pricing for Nashville Intl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Nashville Intl-Chicago (CHI) flights.
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From Tennessee to Illinois
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One-way flight from Tennessee to Illinois
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Highest demand for flights based on searches. 10% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Tennessee to Illinois.
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Price to beat on a one-way flight from Tennessee to Illinois.
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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 March 31, 2025.

This Frontier deal was found by Cheapflights users on 3/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/94:55 pmBNA - ORD
Nonstop2h 04mFrontier
Mon 5/122:36 pmORD - BNA
Nonstop1h 36mFrontier
Deal found 3/30$75
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 5/92:28 pmBNA - ORD
Nonstop1h 57mSpirit Airlines
Mon 5/125:20 pmORD - BNA
Nonstop1h 32mSpirit Airlines
Deal found 3/30$77
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 5/162:28 pmBNA - ORD
Nonstop1h 57mMultiple Airlines
Sun 5/182:29 pmORD - BNA
Nonstop1h 36mMultiple Airlines
Deal found 3/30$92
This Southwest deal was found by Cheapflights users on 3/30. 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.
Fri 5/99:25 pmBNA - MDW
Nonstop1h 35mSouthwest
Mon 5/128:30 pmMDW - BNA
Nonstop1h 30mSouthwest
Deal found 3/30$145
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1311:22 amBNA - ORD
Nonstop1h 53mAmerican Airlines
Tue 5/133:30 pmORD - BNA
Nonstop1h 38mAmerican Airlines
Deal found 3/30$154
This CheapOair deal was found by Cheapflights users on 3/29. 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 4/247:49 pmBNA - MDW
1 stop23h 17mFrontier
Sun 4/278:01 pmMDW - BNA
1 stop22h 48mFrontier
Deal found 3/29$160
This Southwest deal was found by Cheapflights users on 3/30. 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.
Tue 5/137:25 amBNA - ORD
1 stop7h 35mSouthwest
Tue 5/134:00 pmORD - BNA
Nonstop1h 40mSouthwest
Deal found 3/30$169
This JetBlue deal was found by Cheapflights users on 3/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:00 amBNA - ORD
1 stop9h 04mJetBlue
Wed 5/146:15 amORD - BNA
1 stop6h 25mJetBlue
Deal found 3/30$171
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:00 amBNA - MDW
1 stop6h 28mDelta
Mon 5/121:08 pmMDW - BNA
1 stop5h 17mDelta
Deal found 3/30$177
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/75:15 amBNA - ORD
1 stop4h 48mDelta
Wed 5/141:30 pmORD - BNA
1 stop5h 10mDelta
Deal found 3/30$179
This United Airlines deal was found by Cheapflights users on 3/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:00 amTYS - ORD
Nonstop1h 57mUnited Airlines
Sun 5/47:58 pmORD - TYS
Nonstop1h 47mUnited Airlines
Deal found 3/31$189
This Frontier deal was found by Cheapflights users on 3/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1812:46 pmTYS - MDW
1 stop12h 35mFrontier
Sun 4/206:45 amMDW - TYS
1 stop8h 01mFrontier
Deal found 3/30$198

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 March 31, 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

Fri 5/9

4:55 pm-6:59 pm

Nonstop2h 04m

Chicago O'Hare Intl

Mon 5/12

2:36 pm-4:12 pm

Nonstop1h 36m

$75

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Fri 5/9

2:28 pm-4:25 pm

Nonstop1h 57m

Chicago O'Hare Intl

Mon 5/12

5:20 pm-6:52 pm

Nonstop1h 32m

$77

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Fri 5/16

2:28 pm-4:25 pm

Nonstop1h 57m

Chicago O'Hare Intl

Sun 5/18

2:29 pm-4:05 pm

Nonstop1h 36m

$92

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Fri 5/9

9:25 pm-11:00 pm

Nonstop1h 35m

Chicago Midway

Mon 5/12

8:30 pm-10:00 pm

Nonstop1h 30m

$145

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Tue 5/13

11:22 am-1:15 pm

Nonstop1h 53m

Chicago O'Hare Intl

Tue 5/13

3:30 pm-5:08 pm

Nonstop1h 38m

$154

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Thu 4/24

7:49 pm-7:06 pm

1 stop23h 17m

Chicago Midway

Sun 4/27

8:01 pm-6:49 pm

1 stop22h 48m

$160

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Tue 5/13

7:25 am-3:00 pm

1 stop7h 35m

Chicago O'Hare Intl

Tue 5/13

4:00 pm-5:40 pm

Nonstop1h 40m

$169

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Tue 5/6

6:00 am-3:04 pm

1 stop9h 04m

Chicago O'Hare Intl

Wed 5/14

6:15 am-12:40 pm

1 stop6h 25m

$171

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Fri 5/9

6:00 am-12:28 pm

1 stop6h 28m

Chicago Midway

Mon 5/12

1:08 pm-6:25 pm

1 stop5h 17m

$177

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Wed 5/7

6:00 am-9:51 am

1 stop3h 51m

Chicago O'Hare Intl

Tue 5/13

1:45 pm-6:25 pm

1 stop4h 40m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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, August is the cheapest month in which you can book a flight from Tennessee to Illinois (average of $245). Flying from Tennessee to Illinois in March is currently the most expensive (average of $323). 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 March 31, 2025.

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

Weekly flight availability from Tennessee to Illinois

Explore weekly flight availability from Tennessee to Illinois. 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 March 31, 2025.

The most flights from USTN to USIL are scheduled on a Monday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 March 31, 2025.
To help decide which airline to fly from Tennessee to Illinois, see what other customers have to say about Southwest, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,275 reviews

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,275 reviews
Southwest
8.0
Very good
4,275 reviews

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,899 reviews
Southwest
8.0
Very good
4,275 reviews

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,614 reviews
Southwest
8.0
Very good
4,275 reviews

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,924 reviews
Southwest
8.0
Very good
4,275 reviews

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Allegiant Air
7.3
Good
731 reviews
Southwest
8.0
Very good
4,275 reviews

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

  • 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 $54 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $55 and Southwest from $69 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, August is the cheapest month in which you can book a flight from Tennessee to Illinois (average of $245). Flying from Tennessee to Illinois in March is currently the most expensive (average of $323). 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 Tennessee to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Tennessee to Illinois

Discover the top 6 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$29Average$81FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$65Average$84FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$91Average$350FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$109Average$273FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$119Average$323FlexibilityNo cancel feeOn-time69%
DeltaCheapest$156Average$358FlexibilityNo cancel feeOn-timeN/A
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