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Find cheap flights from Chattanooga to Illinois from $123

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chattanooga to Illinois departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 7/1
Mon 7/8

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicagononstop$182
Moline
Moline1 stop$495
Peoria
Peoria1 stop$468
St. Louis
St. Louis1 stop$227

Good to know

Low season

February

High season

June

Cheapest flight

$123
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from Chattanooga to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Chattanooga to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chattanooga to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chattanooga to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Chattanooga is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chattanooga to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Illinois with an airline and back to Chattanooga with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chattanooga to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Illinois from Chattanooga up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Chattanooga to the following destinations at these prices or less: Chicago $234 one-way - $299 round-trip
  • Morning departure is around 28% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airlines flying from Chattanooga to Illinois

 
Need help choosing which airline to fly with from Chattanooga to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10419 reviews
7.4Food
7.9Comfort
8.6Crew
8.0Entertainment
8.2Boarding
Airline reviews

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

10.0 ExcellentBarb, Jun 2024MSP - JFK
Read more about Delta reviews

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The CX617 from HK to BKK was delayed more than 1.5 hours.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Book cheap flights from Chattanooga to Illinois

Recent round-trip flight deals

7/5Fri
nonstopUnited Airlines
2h 00mCHA-ORD
7/9Tue
nonstopUnited Airlines
1h 47mORD-CHA
$182
7/23Tue
nonstopUnited Airlines
2h 00mCHA-ORD
7/30Tue
nonstopUnited Airlines
1h 47mORD-CHA
$194
10/25Fri
1 stopDelta
5h 54mCHA-ORD
11/2Sat
1 stopDelta
5h 56mORD-CHA
$213
6/29Sat
1 stopAmerican Airlines
5h 22mCHA-STL
7/6Sat
1 stopAmerican Airlines
5h 02mSTL-CHA
$227
6/29Sat
nonstopUnited Airlines
2h 04mCHA-ORD
7/2Tue
nonstopUnited Airlines
1h 47mORD-CHA
$229
6/29Sat
nonstopUnited Airlines
2h 04mCHA-ORD
7/1Mon
nonstopUnited Airlines
1h 47mORD-CHA
$230
6/15Sat
1 stopAmerican Airlines
4h 32mCHA-STL
7/6Sat
1 stopAmerican Airlines
5h 02mSTL-CHA
$232
6/15Sat
1 stopDelta
4h 36mCHA-STL
6/29Sat
1 stopDelta
3h 40mSTL-CHA
$233
6/17Mon
2 stops
14h 00mCHA-ORD
6/21Fri
1 stop
13h 45mORD-CHA
$345
6/17Mon
2 stops
14h 00mCHA-ORD
6/21Fri
2 stops
12h 06mORD-CHA
$401

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Recent one-way flight deals

8/3Sat
1 stopAmerican Airlines
6h 47mCHA-ORD
$123
6/8Sat
1 stopAmerican Airlines
6h 48mCHA-ORD
$144
7/1Mon
2 stops
14h 00mCHA-ORD
$152
7/6Sat
1 stopDelta
5h 48mCHA-STL
$155
6/7Fri
1 stopDelta
4h 33mCHA-ORD
$166
6/15Sat
1 stopDelta
6h 51mCHA-MDW
$173
6/29Sat
nonstopUnited Airlines
2h 00mCHA-ORD
$205
7/1Mon
nonstopUnited Airlines
2h 03mCHA-ORD
$235
8/9Fri
3 stops
25h 39mCHA-ORD
$266
6/29Sat
3 stopsWestJet
23h 37mCHA-ORD
$944

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Last minute flights from Chattanooga to Illinois

Last minute flight, train and bus deals

6/4Tue
multi-stopAmerican Airlines
5h 53mCHA-STL
6/11Tue
multi-stopAmerican Airlines
5h 00mSTL-CHA
$254
6/4Tue
multi-stopAmerican Airlines
7h 10mCHA-STL
6/11Tue
multi-stopAmerican Airlines
5h 00mSTL-CHA
$259
6/4Tue
multi-stopAmerican Airlines
4h 31mCHA-MLI
6/5Wed
multi-stopAmerican Airlines
6h 36mMLI-CHA
$268
6/3Mon
multi-stopAmerican Airlines
10h 29mCHA-MLI
6/4Tue
multi-stopAmerican Airlines
4h 50mMLI-CHA
$273
6/3Mon
nonstopUnited Airlines
2h 05mCHA-ORD
6/8Sat
nonstopUnited Airlines
1h 49mORD-CHA
$338
6/3Mon
multi-stopUnited Airlines
4h 52mCHA-MLI
6/5Wed
multi-stopUnited Airlines
3h 47mMLI-CHA
$338
6/2Sun
multi-stopDelta
4h 31mCHA-MLI
6/5Wed
multi-stopDelta
5h 27mMLI-CHA
$448
6/6Thu
multi-stop
21h 52mCHA-ORD
6/10Mon
multi-stop
12h 06mORD-CHA
$487
6/4Tue
multi-stopDelta
3h 25mCHA-MDW
6/5Wed
multi-stopDelta
5h 00mMDW-CHA
$492
6/3Mon
multi-stop
23h 01mCHA-ORD
6/8Sat
multi-stop
21h 53mORD-CHA
$986

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Chattanooga - Illinois Flights

Departure:

Chattanooga (CHA)United States

Return flight deals:

Illinois - Chattanooga

Cabin classes:

$1,324
$1,146
$442
$211