$125 Cheap Flights from Chattanooga (CHA) to Chicago (ORD)

View $125 flight on Thu, May 28, 2026Opens in a new window

Popular airlines from Chattanooga Metropolitan Airport (CHA) to Chicago O'Hare Intl. Airport (ORD)

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Cheap Flights from Chattanooga to Chicago (CHA-ORD)

Prices were available within the past 7 days and start at $125 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, May 15 - Sun, May 17
CHA
Chattanooga
ORD
Chicago
$249 Roundtrip, found 2 hours ago
$249
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, May 15 from Chattanooga to Chicago, returning Sun, May 17, priced at $249 found 2 hours ago
United
Fri, May 1 - Sun, May 3
CHA
Chattanooga
ORD
Chicago
$257 Roundtrip, found 4 hours ago
$257
Roundtrip
found 4 hours ago
Select United flight, departing Fri, May 1 from Chattanooga to Chicago, returning Sun, May 3, priced at $257 found 4 hours ago
United
Sat, Jun 27 - Sat, Jul 4
CHA
Chattanooga
ORD
Chicago
$259 Roundtrip, found 3 hours ago
$259
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Jun 27 from Chattanooga to Chicago, returning Sat, Jul 4, priced at $259 found 3 hours ago
American Airlines
Fri, May 15 - Sun, May 17
CHA
Chattanooga
ORD
Chicago
$259 Roundtrip, found 2 hours ago
$259
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, May 15 from Chattanooga to Chicago, returning Sun, May 17, priced at $259 found 2 hours ago
American Airlines
Wed, May 20 - Wed, May 27
CHA
Chattanooga
ORD
Chicago
$260 Roundtrip, found 18 hours ago
$260
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Wed, May 20 from Chattanooga to Chicago, returning Wed, May 27, priced at $260 found 18 hours ago
United
Wed, May 27 - Wed, Jun 3
CHA
Chattanooga
ORD
Chicago
$263 Roundtrip, found 7 hours ago
$263
Roundtrip
found 7 hours ago
Select United flight, departing Wed, May 27 from Chattanooga to Chicago, returning Wed, Jun 3, priced at $263 found 7 hours ago
United
Fri, Apr 24 - Fri, May 1
CHA
Chattanooga
ORD
Chicago
$264 Roundtrip, found 14 hours ago
$264
Roundtrip
found 14 hours ago
Select United flight, departing Fri, Apr 24 from Chattanooga to Chicago, returning Fri, May 1, priced at $264 found 14 hours ago
United
Sat, Jun 27 - Sat, Jul 4
CHA
Chattanooga
ORD
Chicago
$266 Roundtrip, found 3 hours ago
$266
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Jun 27 from Chattanooga to Chicago, returning Sat, Jul 4, priced at $266 found 3 hours ago
United
Sat, Jun 27 - Sat, Jul 4
CHA
Chattanooga
ORD
Chicago
$269 Roundtrip, found 3 hours ago
$269
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Jun 27 from Chattanooga to Chicago, returning Sat, Jul 4, priced at $269 found 3 hours ago
Delta
Fri, Jun 19 - Mon, Jun 22
CHA
Chattanooga
ORD
Chicago
$269 Roundtrip, found 3 hours ago
$269
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Jun 19 from Chattanooga to Chicago, returning Mon, Jun 22, priced at $269 found 3 hours ago

Alternative airports near Chicago

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city center is 23 minutes. Flights from $647
ORD
O'Hare Intl.
Cheapest
Average driving time to city center23 min
Flights from $647

Frequently asked questions

How much does a flight from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) cost?
You can find cheap one-way flights from $125 and cheap return flights from $249 Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) with Expedia. One-way flights usually range from $213 to $630, and return flights typically cost between $306 and $1150. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
The cheapest month to fly from CHA to ORD is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
Choose from 2 airlines operating direct flights from CHA to ORD:

  • United operates around 33 direct flights from CHA to ORD every week
  • American Airlines operates around 20 direct flights from CHA to ORD every week

What is the cheapest airline that flies from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
United is one of the cheapest airlines offering nonstop flights from Chattanooga Metropolitan (CHA) to O'Hare Intl. (ORD), with round-trip tickets starting from around $400. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
To find a cheap flight from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
The best airline to fly with from Chattanooga, TN (CHA) to Chicago, IL (ORD) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. American Airlines also offers the most daily flights from CHA to ORD, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
You can find approximately 7 nonstop flights per day from Chattanooga Metropolitan (CHA) to O'Hare Intl. (ORD). For more options, look at flights that include layovers.
What is the earliest flight from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
The earliest flight from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) typically departs at around 5:00 AM, operated by American Airlines. This service operates seasonally in March. An early flight can help you maximize your time in Chicago. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
The most popular departure times for flights from Chattanooga, TN (CHA) to Chicago, IL (ORD) are in the early morning, from 6am to 9am. About 32% of passengers prefer this time window. Many major carriers, including American Airlines and Delta, offer flights during this window. This timing works well because it allows you to arrive in Chicago with a full day ahead of you.
How long does it take to fly from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
Flying nonstop from CHA to ORD takes around 2 hours 20 minutes, with the route covering approximately 501 miles. Flights with a layover typically take 4 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
First class is available on flights from CHA to ORD. First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines

How much is a business class flight from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
A direct, return business class ticket from Chattanooga, TN (CHA) to Chicago, IL (ORD) typically costs between $610 - $820. A non-stop, one-way business class flight is usually around $529 - $779. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) flight with Expedia?
It's easy to earn miles on a Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Chicago from Chattanooga Metropolitan (CHA)?
When traveling from Chattanooga Metropolitan (CHA) to Chicago, you can fly into O'Hare Intl. (ORD) and Midway Intl. (MDW). Some flights may connect through major hubs like Charlotte-Douglas Intl. (CLT), Dallas-Fort Worth Intl. (DFW), Ronald Reagan Washington National (DCA) before reaching Chicago. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) at the last minute?
Typically, booking a last minute flight from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) flight and hotel package?
Securing a Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) Chicago Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.)?
If you booked your Chattanooga, TN (CHA-Chattanooga Metropolitan) to Chicago, IL (ORD-O'Hare Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Chattanooga Metropolitan
Destination airport
O'Hare Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$249
Distance
501 mi
Average flight time
1 hour 13 mins

Book with confidence

Chattanooga to Chicago Flights

The cheapest times to fly from Chattanooga to Chicago

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chattanooga to Chicago are during the month of May. You can find some of the cheapest flights from Chattanooga to Chicago with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chattanooga to Chicago

Sunday is one of the best days to book for cheap flights from Chattanooga to Chicago: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chattanooga to Chicago

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chattanooga to Chicago in 2026. You can also book with separate airlines for your outbound and return journeys, from $125 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chattanooga to Chicago flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chattanooga to Chicago airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chattanooga to Chicago Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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