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$49+ Cheap flights from Nashville (BNA) 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Nashville to Illinois

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

Round-trip from

$79
(CheapOair)

One-way from

$50
(CheapOair)

Popular in

March

Cheapest in

August

Average price

$147

Good round-trip deal

$78 or less

Good one-way deal

$58 or less
From Nashville Intl to Illinois
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One-way flight from Nashville Intl to Illinois
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Highest demand for flights based on searches. 9% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 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 Nashville Intl to Illinois.
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Price to beat on a one-way flight from Nashville Intl to Illinois.
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Find flight deals from Nashville to Illinois

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

This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:10 amBNA - ORD
1 stop12h 13mSpirit Airlines
Mon 11/104:01 pmORD - BNA
Nonstop1h 40mSpirit Airlines
Deal found 7/28$79
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 8/83:07 pmBNA - ORD
Nonstop2h 04mFrontier
Mon 8/1112:35 pmORD - BNA
Nonstop1h 39mFrontier
Deal found 7/29$83
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/141:10 pmBNA - RFD
Nonstop1h 41mAllegiant Air
Sun 8/173:41 pmRFD - BNA
Nonstop1h 32mAllegiant Air
Deal found 7/29$84
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/235:50 amBNA - MDW
Nonstop1h 35mSouthwest
Sat 8/232:50 pmMDW - BNA
Nonstop1h 25mSouthwest
Deal found 7/29$97
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/139:15 amBNA - ORD
Nonstop1h 46mAmerican Airlines
Sat 9/2010:11 amORD - BNA
Nonstop1h 31mAmerican Airlines
Deal found 7/30$97
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/234:30 pmBNA - ORD
1 stop5h 30mSouthwest
Tue 8/263:10 pmORD - BNA
Nonstop1h 35mSouthwest
Deal found 7/29$107
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:45 amBNA - ORD
1 stop11h 54mMultiple Airlines
Sun 9/712:53 pmORD - BNA
Nonstop1h 43mMultiple Airlines
Deal found 7/29$109
This KAYAK deal was found by Cheapflights users on 7/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/52:35 pmBNA - STL
1 stop4h 06mSouthern / Mokulele
Tue 8/129:50 amSTL - BNA
1 stop4h 05mSouthern / Mokulele
Deal found 7/28$157
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/52:35 pmBNA - STL
1 stop4h 01mMultiple Airlines
Sun 9/712:05 pmSTL - BNA
1 stop22h 19mMultiple Airlines
Deal found 7/30$166
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/285:03 pmBNA - STL
1 stop20h 29mSpirit Airlines
Thu 9/412:05 pmSTL - BNA
1 stop22h 19mSpirit Airlines
Deal found 7/29$169
This Southwest deal was found by Cheapflights users on 7/28. 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.
Wed 8/276:45 pmBNA - STL
Nonstop1h 20mSouthwest
Sat 8/308:20 amSTL - BNA
Nonstop1h 10mSouthwest
Deal found 7/28$177
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/132:18 pmBNA - MDW
1 stop6h 52mDelta
Sat 9/201:08 pmMDW - BNA
1 stop3h 44mDelta
Deal found 7/30$177

Cheapflights Fare Finder

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

Fly from

Nashville

Fly to

Illinois

Route

Depart

Return

Price

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Wed 11/5

6:10 am-6:23 pm

1 stop12h 13m

Chicago O'Hare Intl

Mon 11/10

4:01 pm-5:41 pm

Nonstop1h 40m

$79

NashvilleChicago

BNA - RFD

BNARFD

Nashville Intl

Thu 8/14

1:10 pm-2:51 pm

Nonstop1h 41m

Chicago Greater Rockford

Sun 8/17

3:41 pm-5:13 pm

Nonstop1h 32m

$84

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Fri 9/12

3:21 pm-5:26 pm

Nonstop2h 05m

Chicago O'Hare Intl

Sun 9/14

12:53 pm-2:36 pm

Nonstop1h 43m

$88

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Sat 8/23

5:50 am-7:25 am

Nonstop1h 35m

Chicago Midway

Sat 8/23

2:50 pm-4:15 pm

Nonstop1h 25m

$97

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Sat 9/13

9:15 am-11:01 am

Nonstop1h 46m

Chicago O'Hare Intl

Sat 9/20

10:11 am-11:42 am

Nonstop1h 31m

$97

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Sat 8/23

4:30 pm-10:00 pm

1 stop5h 30m

Chicago O'Hare Intl

Tue 8/26

3:10 pm-4:45 pm

Nonstop1h 35m

$107

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Fri 9/5

5:45 am-5:39 pm

1 stop11h 54m

Chicago O'Hare Intl

Sun 9/7

12:53 pm-2:36 pm

Nonstop1h 43m

$109

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Tue 8/5

2:35 pm-6:41 pm

1 stop4h 06m

Lambert-St Louis

Tue 8/12

9:50 am-1:55 pm

1 stop4h 05m

$157

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Fri 9/5

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Sun 9/7

12:05 pm-10:24 am

1 stop22h 19m

$166

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Thu 8/28

5:03 pm-1:32 pm

1 stop20h 29m

Lambert-St Louis

Thu 9/4

12:05 pm-10:24 am

1 stop22h 19m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 49 results
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Best time to book a flight from Nashville to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Nashville to Illinois (average of $245). Flying from Nashville to Illinois in March is currently the most expensive (average of $321). 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 BNA to IL?

Find hourly flight availability from Nashville 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 July 30, 2025.

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

Weekly flight availability from Nashville to Illinois

Explore weekly flight availability from Nashville 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 July 30, 2025.

The most flights from BNA to USIL are scheduled on a Wednesday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

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 July 30, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Nashville to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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
4,241 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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
703 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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 Nashville to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Nashville to Illinois?

    Located just 6.0 mi from the city center, Nashville Intl (BNA) is the airport most travelers will use when flying to Illinois from Nashville.

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

    The cheapest airlines for a one-way flight from Nashville to Illinois are Spirit Airlines ($50), Allegiant Air ($51), and Frontier ($57).

  • What are the most popular routes from Nashville to Illinois?

    Most travelers choose Nashville Intl - Chicago O'Hare Intl, Nashville Intl - Chicago Midway or Nashville Intl - Lambert-St Louis when deciding on the best route from Nashville to Illinois.

  • What are the most reliable airlines from Nashville to Illinois?

    Consider Spirit Airlines (87%), Republic Airways (86%) or United Airlines (82%) when booking your flight. These represent the most reliable airlines when flying from Nashville to Illinois.

  • What are the cheapest flights from Nashville to Illinois?

    On average you can expect to pay $1,674 for a flight from Nashville to Illinois. The cheapest flight overall is $49 while the most popular route, (Nashville Intl - Chicago O'Hare Intl) is currently priced at $59.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Nashville to Illinois (average of $245). Flying from Nashville to Illinois in March is currently the most expensive (average of $321). 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.

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Alternative routes for Nashville to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Nashville to Illinois

Discover the top 7 airlines that operate flights from Nashville 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$36Average$101FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$43Average$84FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$58Average$79FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$98Average$235FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$99Average$262FlexibilityNo cancel feeOn-time71%
DeltaCheapest$117Average$514FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$119Average$287FlexibilityNo cancel feeOn-time69%

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