Frontier's UpFront Plus guarantees an empty middle seat for extra comfort.
Zone 1 boarding available with carry-on purchase or special fare bundle.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $75 (Priceline) |
One-way from | $47 (Cheapflightsfares) |
Popular in | June |
Cheapest in | February |
Average price | $167 |
Good round-trip deal | $113 or less |
Good one-way deal | $100 or less |
Fly from
Fly to
Route
Depart
Return
Price
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 12/4
10:44 pm-8:42 pm
1 stop22h 58m
Chicago O'Hare Intl
Mon 12/8
6:11 am-9:31 am
Nonstop2h 20m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Wed 12/3
8:46 pm-8:04 am
1 stop12h 18m
Chicago O'Hare Intl
Mon 12/8
6:11 am-9:31 am
Nonstop2h 20m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 12/16
5:18 pm-6:46 pm
Nonstop2h 28m
Chicago O'Hare Intl
Tue 12/23
6:00 am-9:20 am
Nonstop2h 20m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 11/18
10:00 am-11:14 am
Nonstop2h 14m
Chicago O'Hare Intl
Mon 11/24
6:35 pm-10:00 pm
Nonstop2h 25m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 1/29
1:15 pm-2:30 pm
Nonstop2h 15m
Chicago O'Hare Intl
Thu 1/29
6:10 pm-9:15 pm
Nonstop2h 05m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 1/27
3:40 pm-4:55 pm
Nonstop2h 15m
Chicago O'Hare Intl
Tue 1/27
6:10 pm-9:15 pm
Nonstop2h 05m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 11/18
7:30 am-7:38 pm
1 stop13h 08m
Chicago O'Hare Intl
Sat 11/22
6:35 pm-10:00 pm
Nonstop2h 25m
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
Sat 1/17
6:25 am-7:20 am
Nonstop1h 55m
Chicago Midway
Mon 1/19
7:50 am-10:45 am
Nonstop1h 55m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Fri 12/5
8:46 am-8:42 pm
1 stop12h 56m
Chicago O'Hare Intl
Sun 12/7
5:11 am-7:55 am
1 stop25h 44m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 12/23
9:10 pm-10:24 pm
Nonstop2h 14m
Chicago O'Hare Intl
Mon 12/29
6:00 am-9:20 am
Nonstop2h 20m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The price you pay for your flight from Atlanta to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 29 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, January is the cheapest month in which you can book a flight from Atlanta to Chicago (average of $36). Flying from Atlanta to Chicago in June is currently the most expensive (average of $80). 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.
One of the essential ways to save on airfare from Atlanta to Chicago is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 43% on airfare.
Travelers seeking maximum savings on their Atlanta to Chicago flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from ATL to CHI are scheduled on a Monday (103 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$147 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$59 | Average$124 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$107 | Average$250 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$266 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$230 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$157 | Average$275 | FlexibilityNo cancel fee | On-time63% |