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$59+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — ORD
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
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Cheap 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 December 9, 2025.

This Trip.com deal was found by Cheapflights users on 12/7. 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.
Tue 12/92:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Tue 12/169:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Deal found 12/7$152
This Trip.com deal was found by Cheapflights users on 12/7. 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.
Mon 12/152:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Thu 12/189:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Deal found 12/7$154
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 12/122:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Sat 12/139:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Deal found 12/8$171
This Cheapflightsfares deal was found by Cheapflights users on 12/7. 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.
Thu 12/118:52 amBNA - ORD
1 stop11h 09mSpirit Airlines
Tue 1/63:26 pmORD - BNA
1 stop7h 01mSpirit Airlines
Deal found 12/7$191
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 12/222:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Wed 12/249:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Deal found 12/8$192
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 12/122:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Tue 12/169:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Deal found 12/8$193
This Trip.com deal was found by Cheapflights users on 12/6. 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 12/192:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Fri 12/269:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Deal found 12/6$207
This Trip.com deal was found by Cheapflights users on 12/8. 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.
Thu 12/182:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Sat 12/209:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Deal found 12/8$208
This United Airlines deal was found by Cheapflights users on 12/6. 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.
Wed 12/318:00 amBNA - ORD
Nonstop1h 55mUnited Airlines
Wed 12/315:50 pmORD - BNA
Nonstop1h 41mUnited Airlines
Deal found 12/6$215
This Cheapflightsfares deal was found by Cheapflights users on 12/7. 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.
Thu 12/118:52 amBNA - ORD
1 stop11h 09mSpirit Airlines
Sun 12/147:20 amORD - BNA
1 stop5h 34mSpirit Airlines
Deal found 12/7$216
This Priceline deal was found by Cheapflights users on 12/7. 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.
Tue 12/303:35 pmBNA - ORD
1 stop5h 52mMultiple Airlines
Wed 12/313:26 pmORD - BNA
1 stop7h 01mMultiple Airlines
Deal found 12/7$217
This Kiwi.com deal was found by Cheapflights users on 12/8. 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.
Tue 12/303:35 pmBNA - ORD
1 stop5h 52mMultiple Airlines
Thu 1/112:09 pmORD - BNA
1 stop11h 05mMultiple Airlines
Deal found 12/8$219

Find flight deals from Nashville to Illinois

Keep the following information in mind while searching for Nashville to Illinois flight deals. Data was last updated December 9, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$117
(Southwest)

One-way from

$59
(Southwest)

Popular in

November

Cheapest in

September

Average price

$211

Good round-trip deal

$107 or less

Good one-way deal

$123 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 Nashville Intl to Illinois
Search Deals
One-way flight from Nashville Intl to Illinois
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Nashville Intl to Illinois.
Search Deals
Price to beat on a one-way flight from Nashville Intl to Illinois.
Search Deals

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 December 9, 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 - MDW

BNAMDW

Nashville Intl

Wed 1/7

4:25 pm-6:05 pm

Nonstop1h 40m

Chicago Midway

Wed 1/14

3:00 pm-7:35 pm

1 stop4h 35m

$127

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Wed 1/7

2:45 pm-9:50 pm

1 stop7h 05m

Chicago O'Hare Intl

Wed 1/14

1:45 pm-3:20 pm

Nonstop1h 35m

$127

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Thu 1/29

7:37 pm-6:44 pm

1 stop23h 07m

Lambert-St Louis

Sat 1/31

3:46 pm-6:42 pm

1 stop26h 56m

$158

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Sun 1/4

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Sun 1/11

5:11 pm-3:24 pm

1 stop22h 13m

$160

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Fri 1/23

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Fri 1/30

9:50 am-1:48 pm

1 stop3h 58m

$167

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Wed 1/21

9:25 am-11:33 pm

1 stop14h 08m

Lambert-St Louis

Wed 1/28

8:22 pm-8:29 pm

2 stops24h 07m

$168

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Wed 1/14

9:25 am-10:34 pm

1 stop13h 09m

Lambert-St Louis

Sat 1/17

3:43 pm-6:32 pm

1 stop26h 49m

$169

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Thu 1/8

7:11 am-9:20 am

Nonstop2h 09m

Chicago O'Hare Intl

Mon 1/12

8:01 am-9:45 am

Nonstop1h 44m

$171

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Mon 2/9

8:00 am-9:55 am

Nonstop1h 55m

Chicago O'Hare Intl

Wed 2/11

7:50 pm-9:42 pm

Nonstop1h 52m

$171

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Tue 1/6

2:52 pm-4:49 pm

Nonstop1h 57m

Chicago O'Hare Intl

Tue 1/13

7:40 am-9:30 am

Nonstop1h 50m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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, February is the cheapest month in which you can book a flight from Nashville to Illinois (average of $37). Flying from Nashville to Illinois in December is currently the most expensive (average of $91). 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 December 9, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 34% on flights from Nashville to Illinois by exploring options for tickets at noon.

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

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

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

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 December 9, 2025.

The most flights from BNA to USIL are scheduled on a Monday (57 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (31 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 December 9, 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
4,254 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,089 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,045 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Spirit Airlines
6.3
Okay
8,168 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,085 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 $127, Southwest can have you in Illinois from Nashville in 1h 40m. Nashville and Illinois are separated by a distance of 395 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Frontier ($29), Spirit Airlines ($33), and Allegiant Air ($39).

  • 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 Frontier (86%), Qatar Airways (77%) or United Airlines (75%) 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 $782 for a flight from Nashville to Illinois. The cheapest flight overall is $39 while the most popular route, (Nashville Intl - Chicago O'Hare Intl) is currently priced at $147.

  • 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, February is the cheapest month in which you can book a flight from Nashville to Illinois (average of $37). Flying from Nashville to Illinois in December is currently the most expensive (average of $91). 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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$37Average$118FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$43Average$82FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$58Average$80FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$97Average$240FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$109Average$318FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$111Average$263FlexibilityNo cancel feeOn-time71%
DeltaCheapest$176Average$514FlexibilityNo cancel feeOn-timeN/A

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