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$86+ Cheap flights from Chattanooga (CHA) 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHA — ORD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Chattanooga to Illinois

Cheapest flights from Chattanooga to Illinois
Explore the most affordable flight options available from Chattanooga to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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 12/248:38 amCHA - ORD
Nonstop2h 12mUnited Airlines
Sat 1/105:50 pmORD - CHA
Nonstop1h 54mUnited Airlines
Deal found 12/10$204
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/265:43 pmCHA - ORD
Nonstop2h 12mUnited Airlines
Mon 12/295:59 pmORD - CHA
Nonstop1h 52mUnited Airlines
Deal found 12/10$219
This Delta deal was found by Cheapflights users on 12/10. 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 12/267:59 pmCHA - ORD
1 stop5h 04mDelta
Thu 1/15:30 amORD - CHA
1 stop6h 11mDelta
Deal found 12/10$224
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/198:38 amCHA - ORD
Nonstop2h 12mUnited Airlines
Wed 12/318:45 amORD - CHA
Nonstop1h 55mUnited Airlines
Deal found 12/10$234
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/258:38 amCHA - ORD
Nonstop2h 12mUnited Airlines
Sun 1/118:45 amORD - CHA
Nonstop1h 59mUnited Airlines
Deal found 12/11$235
This American Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/198:08 pmCHA - ORD
1 stop4h 34mAmerican Airlines
Wed 12/317:22 pmORD - CHA
Nonstop1h 53mAmerican Airlines
Deal found 12/10$244
This American Airlines deal was found by Cheapflights users on 12/11. 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.
Mon 12/227:35 amCHA - ORD
Nonstop2h 05mAmerican Airlines
Mon 12/297:22 pmORD - CHA
Nonstop1h 53mAmerican Airlines
Deal found 12/11$249
This Delta deal was found by Cheapflights users on 12/11. 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 12/245:25 pmCHA - MDW
1 stop5h 57mDelta
Sat 1/106:45 amMDW - CHA
1 stop5h 20mDelta
Deal found 12/11$254
This Delta deal was found by Cheapflights users on 12/10. 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.
Sun 12/2110:36 amCHA - ORD
1 stop6h 43mDelta
Sat 1/35:30 amORD - CHA
1 stop6h 11mDelta
Deal found 12/10$254
This American Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/241:55 pmCHA - ORD
1 stop6h 27mAmerican Airlines
Tue 12/307:22 pmORD - CHA
Nonstop1h 53mAmerican Airlines
Deal found 12/11$259
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/258:38 amCHA - ORD
Nonstop2h 12mUnited Airlines
Wed 12/312:17 pmORD - CHA
Nonstop1h 51mUnited Airlines
Deal found 12/10$264
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/1812:15 pmCHA - ORD
Nonstop2h 11mUnited Airlines
Sun 1/118:45 amORD - CHA
Nonstop1h 59mUnited Airlines
Deal found 12/11$265

Find flight deals from Chattanooga to Illinois

Keep the following information in mind while searching for Chattanooga to Illinois flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(American Airlines)

One-way from

$86
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$269

Good round-trip deal

$266 or less

Good one-way deal

$238 or less
Provider with most accurate pricing for Chattanooga Lovell Field-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chattanooga Lovell Field-Chicago (CHI) flights.
Search Deals
From Chattanooga Lovell Field to Illinois
Search Deals
One-way flight from Chattanooga Lovell Field to Illinois
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 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 Chattanooga Lovell Field to Illinois.
Search Deals
Price to beat on a one-way flight from Chattanooga Lovell Field to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chattanooga 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 12, 2025.
Use the filters below to find and compare flights from Chattanooga to Illinois that are best for you.

Fly from

Chattanooga

Fly to

Illinois

Route

Depart

Return

Price

ChattanoogaChicago

CHA - ORD

CHAORD

Chattanooga Lovell Field

Thu 2/12

5:22 pm-6:39 pm

Nonstop2h 17m

Chicago O'Hare Intl

Mon 2/16

6:15 pm-9:00 pm

Nonstop1h 45m

$189

ChattanoogaChicago

CHA - ORD

CHAORD

Chattanooga Lovell Field

Fri 1/30

8:30 am-9:44 am

Nonstop2h 14m

Chicago O'Hare Intl

Fri 2/6

8:45 am-11:44 am

Nonstop1h 59m

$189

ChattanoogaChicago

CHA - ORD

CHAORD

Chattanooga Lovell Field

Fri 1/9

1:00 pm-2:12 pm

Nonstop2h 12m

Chicago O'Hare Intl

Sun 1/11

5:50 pm-8:44 pm

Nonstop1h 54m

$203

ChattanoogaChicago

CHA - ORD

CHAORD

Chattanooga Lovell Field

Fri 12/26

5:43 pm-6:55 pm

Nonstop2h 12m

Chicago O'Hare Intl

Wed 12/31

8:45 am-11:40 am

Nonstop1h 55m

$204

ChattanoogaChicago

CHA - MDW

CHAMDW

Chattanooga Lovell Field

Thu 1/22

5:30 am-9:53 am

1 stop5h 23m

Chicago Midway

Sat 1/24

6:25 am-1:06 pm

1 stop5h 41m

$209

ChattanoogaChicago

CHA - MDW

CHAMDW

Chattanooga Lovell Field

Fri 3/13

7:00 am-12:29 pm

1 stop6h 29m

Chicago Midway

Sat 3/14

10:49 am-3:29 pm

1 stop3h 40m

$209

ChattanoogaChicago

CHA - MDW

CHAMDW

Chattanooga Lovell Field

Sat 3/21

5:59 pm-10:29 pm

1 stop5h 30m

Chicago Midway

Tue 3/24

10:49 am-3:29 pm

1 stop3h 40m

$209

ChattanoogaChicago

CHA - MDW

CHAMDW

Chattanooga Lovell Field

Fri 1/23

7:45 pm-10:22 pm

1 stop3h 37m

Chicago Midway

Sun 1/25

6:00 am-11:01 am

1 stop4h 01m

$209

ChattanoogaChicago

CHA - MDW

CHAMDW

Chattanooga Lovell Field

Fri 1/16

6:55 am-10:27 am

1 stop4h 32m

Chicago Midway

Mon 1/19

6:00 am-11:01 am

1 stop4h 01m

$209

ChattanoogaChicago

CHA - ORD

CHAORD

Chattanooga Lovell Field

Fri 1/16

6:18 pm-11:59 pm

1 stop6h 41m

Chicago O'Hare Intl

Sun 1/18

5:30 am-11:00 am

1 stop4h 30m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 58 results
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Best time to book a flight from Chattanooga to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Chattanooga to Illinois (average of $60). Flying from Chattanooga to Illinois in February is currently the most expensive (average of $189). 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 CHA to IL?

Find hourly flight availability from Chattanooga 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 12, 2025.

When flying from Chattanooga to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 15% versus a flight in the afternoon.

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

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

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

Weekly flight availability from Chattanooga to Illinois

Explore weekly flight availability from Chattanooga 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 12, 2025.

The most flights from CHA to USIL are scheduled on a Tuesday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 12, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Chattanooga to Illinois have to say. 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.
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,050 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Chattanooga 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 Chattanooga to Illinois?

    Chattanooga Lovell Field (CHA) is the airport you will fly out of if you book a flight from Chattanooga to Illinois. It is only a 6.0 mi journey to Lovell Field (CHA) from Chattanooga’s city center.

  • How long is the flight from Chattanooga to Illinois?

    Airlines like United Airlines, Delta, and American Airlines fly from Chattanooga to Illinois in about 2h 17m. The time it takes to get you to your destination can typically vary by up to 3h 08m. The distance between Chattanooga and Illinois is about 501 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 Chattanooga to Illinois one-way?

    One-way options have recently been found by users for as low as $99 on American Airlines. Other airlines that offer cheap prices include Delta from $123 and United Airlines from $168 one-way.

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

    The most popular route from Chattanooga to Illinois is Chattanooga Lovell Field - Chicago O'Hare Intl. You may also consider Chattanooga Lovell Field - Chicago Midway or Chattanooga Lovell Field - Lambert-St Louis.

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

    Consider SkyWest Airlines (77%), United Airlines (75%) or Emirates (74%) when booking your flight. These represent the most reliable airlines when flying from Chattanooga to Illinois.

  • What are the cheapest flights from Chattanooga to Illinois?

    The cheapest flight price from Chattanooga to Illinois is $118. On average you can expect to pay $341. The most popular route, (Chattanooga Lovell Field - Chicago O'Hare Intl), can usually be booked for $189.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Chattanooga to Illinois (average of $60). Flying from Chattanooga to Illinois in February is currently the most expensive (average of $189). 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 Chattanooga to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Chattanooga to Illinois

Discover the top 3 airlines that operate flights from Chattanooga 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$288FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$189Average$371FlexibilityNo cancel feeOn-time69%
DeltaCheapest$208Average$286FlexibilityNo cancel feeOn-timeN/A

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