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$48+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — ORD
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
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 September 14, 2025.

Round-trip from

$77
(Kiwi.com)

One-way from

$48
(eDestinos)

Popular in

March

Cheapest in

September

Average price

$138

Good round-trip deal

$80 or less

Good one-way deal

$117 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 September 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 September 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:48 pmBNA - ORD
Nonstop2h 00mMultiple Airlines
Sun 10/51:26 pmORD - BNA
Nonstop1h 44mMultiple Airlines
Deal found 9/12$77
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:59 pmBNA - ORD
Nonstop1h 45mMultiple Airlines
Sun 10/261:26 pmORD - BNA
Nonstop1h 44mMultiple Airlines
Deal found 9/13$79
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/233:24 pmBNA - ORD
Nonstop1h 55mFrontier
Fri 10/247:20 pmORD - BNA
Nonstop1h 44mFrontier
Deal found 9/13$80
This FlightHub deal was found by Cheapflights users on 9/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/175:27 pmBNA - RFD
Nonstop1h 31mAllegiant Air
Mon 10/203:07 pmRFD - BNA
Nonstop1h 29mAllegiant Air
Deal found 9/12$82
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/202:01 pmBNA - ORD
Nonstop1h 48mMultiple Airlines
Mon 10/207:25 pmORD - BNA
Nonstop1h 44mMultiple Airlines
Deal found 9/12$82
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Fri 11/76:46 pmBNA - ORD
Nonstop1h 45mMultiple Airlines
Sun 11/96:10 pmORD - BNA
Nonstop1h 48mMultiple Airlines
Deal found 9/14$83
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:56 pmBNA - RFD
Nonstop1h 29mAllegiant Air
Mon 9/2910:37 amRFD - BNA
Nonstop1h 29mAllegiant Air
Deal found 9/13$85
This Priceline deal was found by Cheapflights users on 9/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/63:11 pmBNA - ORD
Nonstop2h 05mMultiple Airlines
Thu 10/91:26 pmORD - BNA
Nonstop1h 44mMultiple Airlines
Deal found 9/12$86
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/175:27 pmBNA - RFD
Nonstop1h 31mAllegiant Air
Mon 10/273:03 pmRFD - BNA
Nonstop1h 29mAllegiant Air
Deal found 9/12$88
This Frontier deal was found by Cheapflights users on 9/13. 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 10/233:24 pmBNA - ORD
Nonstop1h 55mFrontier
Sun 10/2612:41 pmORD - BNA
Nonstop1h 36mFrontier
Deal found 9/13$88
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 11/38:51 pmBNA - ORD
Nonstop1h 48mMultiple Airlines
Fri 11/74:01 pmORD - BNA
Nonstop1h 40mMultiple Airlines
Deal found 9/14$89
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:02 pmBNA - ORD
Nonstop1h 47mSpirit Airlines
Thu 11/64:01 pmORD - BNA
Nonstop1h 40mSpirit Airlines
Deal found 9/12$90

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 September 14, 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 - RFD

BNARFD

Nashville Intl

Fri 9/26

12:56 pm-2:25 pm

Nonstop1h 29m

Chicago Greater Rockford

Mon 9/29

10:37 am-12:06 pm

Nonstop1h 29m

$85

NashvilleChicago

BNA - RFD

BNARFD

Nashville Intl

Fri 10/3

5:27 pm-6:58 pm

Nonstop1h 31m

Chicago Greater Rockford

Mon 10/6

3:00 pm-4:29 pm

Nonstop1h 29m

$91

NashvilleChicago

BNA - RFD

BNARFD

Nashville Intl

Fri 10/10

5:27 pm-6:58 pm

Nonstop1h 31m

Chicago Greater Rockford

Mon 10/13

3:07 pm-4:36 pm

Nonstop1h 29m

$94

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Sat 12/13

5:40 am-7:20 am

Nonstop1h 40m

Chicago Midway

Wed 12/17

8:50 am-10:20 am

Nonstop1h 30m

$97

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Thu 10/23

12:50 pm-2:43 pm

Nonstop1h 53m

Chicago O'Hare Intl

Sat 10/25

10:55 am-12:35 pm

Nonstop1h 40m

$97

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Thu 10/9

5:30 am-7:05 am

Nonstop1h 35m

Chicago Midway

Mon 10/13

9:30 pm-10:55 pm

Nonstop1h 25m

$97

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Sat 10/11

4:57 pm-6:50 pm

Nonstop1h 53m

Chicago O'Hare Intl

Wed 10/15

7:15 am-8:55 am

Nonstop1h 40m

$97

NashvilleChicago

BNA - RFD

BNARFD

Nashville Intl

Fri 10/24

5:22 pm-6:53 pm

Nonstop1h 31m

Chicago Greater Rockford

Mon 10/27

3:03 pm-4:32 pm

Nonstop1h 29m

$105

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Mon 11/3

7:50 am-12:40 pm

1 stop4h 50m

Chicago Midway

Mon 11/10

9:35 pm-11:00 pm

Nonstop1h 25m

$107

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Thu 10/23

4:40 pm-8:15 pm

1 stop3h 35m

Chicago Midway

Sat 10/25

7:20 pm-8:45 pm

Nonstop1h 25m

$107

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 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 September 14, 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 September 14, 2025.

The most flights from BNA to USIL are scheduled on a Sunday (63 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (38 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 September 14, 2025.
Read reviews from past customers who have flown Southwest, United Airlines, and American 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
4,245 reviews

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

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
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

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
8,931 reviews
Southwest
8.0
Very good
4,245 reviews

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

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
4,245 reviews

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

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
Spirit Airlines
6.3
Okay
8,016 reviews
Southwest
8.0
Very good
4,245 reviews

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

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
3,173 reviews
Southwest
8.0
Very good
4,245 reviews

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

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 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.

  • How long is the flight from Nashville to Illinois?

    For as low as $85, Allegiant Air can have you in Illinois from Nashville in 1h 29m. Nashville and Illinois are separated by a distance of 439 mi. Most flights are nonstop.

  • 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 Southwest ($49), United Airlines ($49), and American Airlines ($49).

  • 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 Republic Airways (88%), Spirit Airlines (85%) or United Airlines (81%) 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 $694 for a flight from Nashville to Illinois. The cheapest flight overall is $58 while the most popular route, (Nashville Intl - Chicago O'Hare Intl) is currently priced at $71.

  • 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.

See more FAQs

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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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$37Average$116FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$43Average$84FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$58Average$79FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$97Average$262FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$98Average$235FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$104Average$362FlexibilityNo cancel feeOn-time69%
DeltaCheapest$176Average$514FlexibilityNo cancel feeOn-timeN/A

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