HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chattanooga

$85+ Cheap flights from Illinois to Chattanooga (CHA)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CHA
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Chattanooga with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Chattanooga

Cheapest flights from Illinois to Chattanooga
Explore the most affordable flight options available from Illinois to Chattanooga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This deal was found by Cheapflights users on 3/13. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:23 am
ORD
-
CHA
Nonstop1h 52m
United Airlines
Mon 4/66:30 am
CHA
-
ORD
Nonstop2h 09m
United Airlines
Deal found 3/13$220
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/179:30 pm
ORD
-
CHA
Nonstop1h 53m
United Airlines
Mon 4/208:30 am
CHA
-
ORD
Nonstop2h 13m
United Airlines
Deal found 3/10$229
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Sun 4/195:05 am
ORD
-
CHA
1 stop14h 26m
Multiple Airlines
Sun 4/263:29 pm
CHA
-
ORD
2 stops26h 42m
Multiple Airlines
Deal found 3/15$237
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 4/97:17 am
ORD
-
CHA
1 stop7h 36m
Multiple Airlines
Thu 4/163:29 pm
CHA
-
ORD
1 stop9h 55m
Multiple Airlines
Deal found 3/12$240
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2810:35 am
ORD
-
CHA
Nonstop1h 51m
United Airlines
Sat 4/46:30 am
CHA
-
ORD
Nonstop2h 09m
United Airlines
Deal found 3/12$244
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Sun 5/3110:30 am
ORD
-
CHA
Nonstop1h 51m
United Airlines
Sun 6/76:00 am
CHA
-
ORD
Nonstop2h 02m
United Airlines
Deal found 3/11$248
This Delta deal was found by Cheapflights users on 3/11. 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.
Fri 4/109:35 am
MDW
-
CHA
1 stop3h 34m
Delta
Tue 4/146:25 pm
CHA
-
MDW
1 stop5h 03m
Delta
Deal found 3/11$249
This Delta deal was found by Cheapflights users on 3/11. 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.
Fri 4/107:10 am
ORD
-
CHA
1 stop5h 59m
Delta
Tue 4/143:00 pm
CHA
-
ORD
1 stop6h 40m
Delta
Deal found 3/11$249
This American Airlines deal was found by Cheapflights users on 3/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:17 pm
ORD
-
CHA
1 stop4h 28m
American Airlines
Mon 4/136:45 pm
CHA
-
ORD
Nonstop2h 15m
American Airlines
Deal found 3/13$254
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:01 am
ORD
-
CHA
2 stops15h 11m
Multiple Airlines
Sun 5/104:11 pm
CHA
-
ORD
1 stop9h 13m
Multiple Airlines
Deal found 3/10$255
This United Airlines deal was found by Cheapflights users on 3/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:45 am
ORD
-
CHA
Nonstop1h 49m
United Airlines
Sun 6/146:00 am
CHA
-
ORD
Nonstop2h 02m
United Airlines
Deal found 3/13$258
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/267:25 am
ORD
-
CHA
Nonstop1h 47m
United Airlines
Sat 3/2810:53 am
CHA
-
ORD
Nonstop2h 07m
United Airlines
Deal found 3/12$259

Find flight deals from Illinois to Chattanooga

Keep the following information in mind while searching for Illinois to Chattanooga flight deals. Data was last updated March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$220

One-way from

$85
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$334

Good round-trip deal

$248 or less

Good one-way deal

$213 or less
Provider with most accurate pricing for Chicago (CHI)-Chattanooga Lovell Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Chattanooga Lovell Field flights.
Search Deals
From Illinois to Chattanooga Lovell Field
Search Deals
One-way flight from Illinois to Chattanooga Lovell Field
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Chattanooga Lovell Field.
Search Deals
Price to beat on a one-way flight from Illinois to Chattanooga Lovell Field.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Chattanooga 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 15, 2026.
Use the filters below to find and compare flights from Illinois to Chattanooga that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoChattanooga

ORD - CHA

ORDCHA

Chicago O'Hare Intl

Sat 4/11

2:10 pm-5:06 pm

Nonstop1h 56m

Chattanooga Lovell Field

Sat 4/18

6:30 am-7:39 am

Nonstop2h 09m

$229

ChicagoChattanooga

ORD - CHA

ORDCHA

Chicago O'Hare Intl

Fri 4/17

9:30 pm-12:23 am

Nonstop1h 53m

Chattanooga Lovell Field

Mon 4/20

8:30 am-9:43 am

Nonstop2h 13m

$229

ChicagoChattanooga

ORD - CHA

ORDCHA

Chicago O'Hare Intl

Fri 4/10

9:30 pm-12:23 am

Nonstop1h 53m

Chattanooga Lovell Field

Sun 4/12

8:30 am-9:43 am

Nonstop2h 13m

$229
Quickest round-trip

ChicagoChattanooga

ORD - CHA

ORDCHA

Chicago O'Hare Intl

Thu 5/7

10:35 am-1:25 pm

Nonstop1h 50m

Chattanooga Lovell Field

Sun 5/10

6:30 am-7:37 am

Nonstop2h 07m

$229

ChicagoChattanooga

ORD - CHA

ORDCHA

Chicago O'Hare Intl

Thu 4/23

9:30 pm-12:23 am

Nonstop1h 53m

Chattanooga Lovell Field

Sun 4/26

8:30 am-9:43 am

Nonstop2h 13m

$229

ChicagoChattanooga

ORD - CHA

ORDCHA

Chicago O'Hare Intl

Sat 3/28

5:45 pm-8:30 pm

Nonstop1h 45m

Chattanooga Lovell Field

Fri 4/3

5:46 pm-7:05 pm

Nonstop2h 19m

$244

ChicagoChattanooga

MDW - CHA

MDWCHA

Chicago Midway

Fri 4/3

9:35 am-2:09 pm

1 stop3h 34m

Chattanooga Lovell Field

Thu 4/9

6:15 pm-10:31 pm

1 stop5h 16m

$249

ChicagoChattanooga

MDW - CHA

MDWCHA

Chicago Midway

Fri 4/10

9:35 am-2:09 pm

1 stop3h 34m

Chattanooga Lovell Field

Sun 4/12

7:30 am-12:29 pm

1 stop5h 59m

$249

ChicagoChattanooga

MDW - CHA

MDWCHA

Chicago Midway

Wed 4/1

9:35 am-2:09 pm

1 stop3h 34m

Chattanooga Lovell Field

Sun 4/5

7:30 am-12:29 pm

1 stop5h 59m

$249

ChicagoChattanooga

ORD - CHA

ORDCHA

Chicago O'Hare Intl

Thu 4/23

1:36 pm-9:43 pm

1 stop7h 07m

Chattanooga Lovell Field

Sun 4/26

5:45 am-8:37 am

1 stop3h 52m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Illinois to Chattanooga

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

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

Currently, July is the cheapest month in which you can book a flight from Illinois to Chattanooga (average of $78). Flying from Illinois to Chattanooga in December is currently the most expensive (average of $193). 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 IL to CHA?

Find hourly flight availability from Illinois to Chattanooga. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 15, 2026.

It’s optimal to fly from Illinois to Chattanooga in the afternoon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Illinois to Chattanooga. Price data was last updated on March 12, 2026.

Travelers seeking maximum savings on their Illinois to Chattanooga flight should consider departing on Wednesday afternoons 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 Illinois to Chattanooga

Explore weekly flight availability from Illinois to Chattanooga. 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 15, 2026.

The most flights from USIL to CHA are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Related info for your journey

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

    For a flight from Illinois to Chattanooga, you will be flying into Lovell Field. Chattanooga Lovell Field (CHA) is just 6.0 mi from the center of the city.

  • How long is the flight from Illinois to Chattanooga?

    For as low as $229, United Airlines can have you in Chattanooga from Illinois in 1h 56m. Illinois and Chattanooga are separated by a distance of 501 mi. This flight may include one or multiple stops.

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

    Most travelers choose Chicago O'Hare Intl - Chattanooga Lovell Field, Chicago Midway - Chattanooga Lovell Field or Greater Peoria - Chattanooga Lovell Field when deciding on the best route from Illinois to Chattanooga.

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

    Consider Qatar Airways (83%), Envoy Air (79%) or Republic Airways (73%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Chattanooga.

  • What are the cheapest flights from Illinois to Chattanooga?

    On average you can expect to pay $336 for a flight from Illinois to Chattanooga. The cheapest flight overall is $138 while the most popular route, (Chicago O'Hare Intl - Chattanooga Lovell Field) is currently priced at $220.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Illinois to Chattanooga (average of $78). Flying from Illinois to Chattanooga in December is currently the most expensive (average of $193). 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

Traveling to a place near Chattanooga?

Book flights to Chattanooga if you plan to visit one of these locations
Trenton

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 Illinois to Chattanooga

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Nashville flights
LaGuardia to Nashville flights
Boston to Nashville flights
John F Kennedy Intl to Nashville flights
Los Angeles to Nashville flights
Philadelphia to Nashville flights
Reagan-National to Nashville flights
O'Hare Intl to Nashville flights
Dulles Intl to Nashville flights
Dallas/Fort Worth to Nashville flights
Denver to Nashville flights
Seattle to Nashville flights
Minneapolis to Nashville flights
Baltimore to Nashville flights
San Francisco to Nashville flights
Hobby to Nashville flights
Ontario to Nashville flights
Sky Harbor Intl to Nashville flights
Raleigh to Nashville flights
George Bush Intcntl to Nashville flights
Detroit to Nashville flights
LaGuardia to Knoxville flights
Tampa to Nashville flights
O'Hare Intl to Knoxville flights
San Diego to Nashville flights
Burbank to Nashville flights
Fort Lauderdale to Nashville flights
Santa Ana to Nashville flights
Charlotte to Nashville flights
Hartford to Nashville flights
Austin to Nashville flights
Cleveland to Nashville flights
Salt Lake City to Nashville flights
Orlando to Nashville flights
Providence to Nashville flights
John F Kennedy Intl to Knoxville flights
Newark to Memphis flights
Dallas/Fort Worth to Knoxville flights
LaGuardia to Memphis flights
Portland to Nashville flights
Miami to Nashville flights
Sacramento to Nashville flights
Midway to Nashville flights
Milwaukee to Nashville flights
Denver to Knoxville flights
Baltimore to Memphis flights
John F Kennedy Intl to Memphis flights
Dulles Intl to Memphis flights
Hobby to Knoxville flights
Dallas/Fort Worth to Memphis flights

Top 3 airlines flying from Illinois to Chattanooga

Discover the top 3 airlines that operate flights from Illinois to Chattanooga. 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 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$173Average$293FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$312FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$189Average$299FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.