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 | $68 (Kiwi.com) |
One-way from | $43 (Spirit) |
Popular in | June |
Cheapest in | February |
Average price | $177 |
Good round-trip deal | $103 or less |
Good one-way deal | $89 or less |
Fly from
Fly to
Route
Depart
Return
Price
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
Tue 1/27
10:57 am-12:05 pm
Nonstop2h 08m
Chicago Midway
Sat 1/31
9:38 am-12:45 pm
Nonstop2h 07m
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
Fri 1/16
6:15 am-7:17 am
Nonstop2h 02m
Chicago Midway
Mon 1/19
8:28 am-11:38 am
Nonstop2h 10m
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
Thu 1/29
9:15 pm-10:19 pm
Nonstop2h 04m
Chicago Midway
Mon 2/2
6:20 am-9:37 am
Nonstop2h 17m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 1/15
9:57 am-6:16 pm
1 stop9h 19m
Chicago O'Hare Intl
Tue 1/20
7:20 am-8:49 pm
1 stop12h 29m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 1/8
9:57 am-6:16 pm
1 stop9h 19m
Chicago O'Hare Intl
Sun 1/11
8:43 pm-10:24 am
1 stop12h 41m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Wed 1/14
5:43 pm-11:46 pm
1 stop7h 03m
Chicago O'Hare Intl
Sun 1/18
6:20 am-9:41 am
Nonstop2h 21m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 2/24
8:53 am-8:56 pm
1 stop13h 03m
Chicago O'Hare Intl
Fri 2/27
12:44 pm-11:28 pm
1 stop9h 44m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Fri 1/16
9:06 am-2:17 pm
1 stop6h 11m
Chicago O'Hare Intl
Wed 1/21
7:20 am-2:20 pm
1 stop6h 00m
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 1/8
10:20 am-11:35 am
Nonstop2h 15m
Chicago O'Hare Intl
Sun 1/11
4:49 pm-8:15 pm
Nonstop2h 26m
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
Thu 1/22
4:13 pm-7:52 pm
1 stop28h 39m
Chicago Midway
Sat 1/24
9:38 am-12:45 pm
Nonstop2h 07m
| 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 Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | 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 $44). 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 Wednesday (95 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
About 14% of weekly flights between Atlanta and Chicago have experienced delays in the past year, with the average delay time being 132 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 7% of flights being delayed.
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$120 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$59 | Average$147 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$107 | Average$249 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$265 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$144 | Average$227 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$157 | Average$271 | FlexibilityNo cancel fee | On-time63% |