HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$124+ Cheap flights from Green Bay (GRB) to Chicago (CHI)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — CHI
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Green Bay to Chicago 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 Green Bay to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 14, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$124
(American Airlines)

Popular in

August

Cheapest in

April

Average price

$553

Good round-trip deal

$358 or less

Good one-way deal

$227 or less
From Green Bay Austin-Straubel to Chicago (CHI)
Search Deals
One-way flight from Green Bay Austin-Straubel to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 32% potential increase in price ($153 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Green Bay Austin-Straubel to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Green Bay Austin-Straubel to Chicago (CHI).
Search Deals

Find flight deals from Green Bay to Chicago

Cheapest flights from Green Bay to Chicago
Explore the most affordable flight options available from Green Bay to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 9/244:35 pmGRB - ORD
Nonstop1h 21mAmerican Airlines
mié. 10/19:25 amORD - GRB
Nonstop1h 16mAmerican Airlines
Deal found 8/13$179
This United Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 8/273:45 pmGRB - ORD
Nonstop1h 20mUnited Airlines
dom. 8/313:35 pmORD - GRB
Nonstop1h 15mUnited Airlines
Deal found 8/13$189
This United Airlines deal was found by Cheapflights users on 8/14. 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.
dom. 12/71:20 pmGRB - ORD
Nonstop1h 20mUnited Airlines
dom. 12/148:50 amORD - GRB
Nonstop1h 17mUnited Airlines
Deal found 8/14$194
This American Airlines deal was found by Cheapflights users on 8/14. 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.
jue. 9/116:26 pmGRB - ORD
Nonstop1h 23mAmerican Airlines
jue. 9/188:11 amORD - GRB
Nonstop1h 07mAmerican Airlines
Deal found 8/14$224
This American Airlines deal was found by Cheapflights users on 8/14. 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.
mié. 9/104:35 pmGRB - ORD
Nonstop1h 21mAmerican Airlines
mar. 9/238:05 amORD - GRB
Nonstop1h 11mAmerican Airlines
Deal found 8/14$244
This United Airlines deal was found by Cheapflights users on 8/13. 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.
jue. 8/286:15 amGRB - ORD
Nonstop1h 20mUnited Airlines
lun. 9/18:20 pmORD - GRB
Nonstop1h 23mUnited Airlines
Deal found 8/13$249
This United Airlines deal was found by Cheapflights users on 8/14. 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.
mié. 12/175:21 pmGRB - ORD
Nonstop1h 19mUnited Airlines
sáb. 12/208:20 pmORD - GRB
Nonstop1h 16mUnited Airlines
Deal found 8/14$304
This American Airlines deal was found by Cheapflights users on 8/14. 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.
vie. 8/156:26 pmGRB - ORD
Nonstop1h 13mAmerican Airlines
dom. 8/178:05 amORD - GRB
Nonstop1h 07mAmerican Airlines
Deal found 8/14$309
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/285:25 pmGRB - ORD
1 stop3h 41mDelta
lun. 12/810:35 amORD - GRB
1 stop5h 57mDelta
Deal found 8/13$344
This Delta deal was found by Cheapflights users on 8/14. 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.
dom. 12/76:45 amGRB - ORD
1 stop4h 46mDelta
dom. 12/146:00 amORD - GRB
1 stop5h 14mDelta
Deal found 8/14$349
This Delta deal was found by Cheapflights users on 8/14. 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.
sáb. 9/2012:04 pmGRB - MDW
1 stop5h 31mDelta
mar. 9/239:20 amMDW - GRB
1 stop6h 13mDelta
Deal found 8/14$359
This Delta deal was found by Cheapflights users on 8/14. 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.
mié. 9/1012:06 pmGRB - MDW
1 stop5h 31mDelta
mar. 9/239:20 amMDW - GRB
1 stop6h 13mDelta
Deal found 8/14$399

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to Chicago 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 agosto 14, 2025.
Use the filters below to find and compare flights from Green Bay to Chicago that are best for you.

Fly from

Green Bay

Fly to

Chicago

Route

Depart

Return

Price

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

mié. 9/24

4:35 pm-5:56 pm

Nonstop1h 21m

Chicago O'Hare Intl

mié. 10/1

9:25 am-10:41 am

Nonstop1h 16m

$179

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

sáb. 9/20

4:35 pm-5:56 pm

Nonstop1h 21m

Chicago O'Hare Intl

mar. 9/23

8:05 am-9:16 am

Nonstop1h 11m

$179

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

mié. 8/27

3:45 pm-5:05 pm

Nonstop1h 20m

Chicago O'Hare Intl

dom. 8/31

3:35 pm-4:50 pm

Nonstop1h 15m

$189

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

jue. 8/28

6:02 am-7:15 am

Nonstop1h 13m

Chicago O'Hare Intl

lun. 9/1

10:21 pm-11:30 pm

Nonstop1h 09m

$189

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

vie. 8/29

3:01 pm-4:15 pm

Nonstop1h 14m

Chicago O'Hare Intl

mar. 9/2

8:05 am-9:12 am

Nonstop1h 07m

$189

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

dom. 12/7

1:20 pm-2:40 pm

Nonstop1h 20m

Chicago O'Hare Intl

dom. 12/14

8:50 am-10:07 am

Nonstop1h 17m

$194

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

sáb. 9/20

5:01 pm-9:34 pm

1 stop4h 33m

Chicago O'Hare Intl

mar. 9/23

8:52 am-3:33 pm

1 stop6h 41m

$199

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

jue. 9/11

6:26 pm-7:49 pm

Nonstop1h 23m

Chicago O'Hare Intl

jue. 9/18

8:11 am-9:18 am

Nonstop1h 07m

$224

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

mar. 12/16

10:45 am-12:04 pm

Nonstop1h 19m

Chicago O'Hare Intl

sáb. 12/20

8:20 pm-9:36 pm

Nonstop1h 16m

$244

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

mié. 9/10

4:35 pm-5:56 pm

Nonstop1h 21m

Chicago O'Hare Intl

mar. 9/23

8:05 am-9:16 am

Nonstop1h 11m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 36 results
1
2
3
4

Best time to book a flight from Green Bay to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Green Bay 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 Green Bay to Chicago

What is the cheapest month to book a flight from Green Bay to Chicago?

Currently, August is the cheapest month in which you can book a flight from Green Bay to Chicago (average of $245). Flying from Green Bay to Chicago in March is currently the most expensive (average of $321). 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 GRB to CHI?

Find hourly flight availability from Green Bay to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

It’s optimal to fly from Green Bay to Chicago in the afternoon. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Green Bay to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Green Bay to Chicago. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Green Bay to Chicago flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Green Bay to Chicago

Explore weekly flight availability from Green Bay to Chicago. 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 agosto 14, 2025.

The most flights from GRB to CHI are scheduled on a Friday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated agosto 14, 2025.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Green Bay to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Chicago. 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 from for flights from Green Bay to Chicago?

    For a flight from Green Bay to Chicago, you will be flying from Austin-Straubel. Green Bay Austin-Straubel (GRB) is just 5.9 mi from the center of the city. Austin-Straubel is the only Green Bay airport and it handles 16 outbound flights to Chicago per day. 2 airlines have flights to Chicago from Green Bay Austin-Straubel on a regular basis.

  • What are the cheapest airlines flying from Green Bay to Chicago round-trip?

    According to our current data, American Airlines ($189), and United Airlines ($217) offers the cheapest pricing from Green Bay to Chicago. American Airlines is currently priced 41% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Green Bay to Chicago?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Green Bay to Chicago on time: Republic Airways (87%), Air New Zealand (80%), Copa Airlines (79%).

  • What are the cheapest flights from Green Bay to Chicago?

    Looking for the cheapest flight from Green Bay to Chicago? While on average our users pay $806, our data indicates the cheapest price to be $134. The most popular route (Green Bay Austin-Straubel - Chicago O'Hare Intl), is priced around $189.

  • Can I find deals for flights from Green Bay to Chicago that include hotel bookings?

    Yes. In addition to deals on Green Bay to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to Chicago?

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

  • Can I find deals for business class flights from Green Bay to Chicago?

    Yes. Cheapflights offers flight deals from Green Bay to Chicago 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 Green Bay to Chicago?

    Currently, August is the cheapest month in which you can book a flight from Green Bay to Chicago (average of $245). Flying from Green Bay to Chicago in March is currently the most expensive (average of $321). 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Chesterton

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 Green Bay to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Minneapolis to O'Hare Intl flights
Minneapolis to Midway flights
O'Hare Intl to St. Louis flights
Minneapolis to St. Louis flights
Appleton to O'Hare Intl flights
Milwaukee to St. Louis flights
Madison to St. Louis flights
Appleton to St. Louis flights
Green Bay to St. Louis flights
Madison to O'Hare Intl flights
Milwaukee to O'Hare Intl flights
Minneapolis to Rockford flights
Appleton to Midway flights
O'Hare Intl to Decatur flights
Duluth to O'Hare Intl flights
Eau Claire to O'Hare Intl flights
Madison to Midway flights
O'Hare Intl to Moline flights
Green Bay to O'Hare Intl flights
Dubuque to O'Hare Intl flights
Duluth to Midway flights
Green Bay to Midway flights
O'Hare Intl to Champaign flights
Minneapolis to Moline flights
Minneapolis to Bloomington flights
O'Hare Intl to Springfield flights
O'Hare Intl to Peoria flights
Wausau to O'Hare Intl flights
O'Hare Intl to Burlington flights
Milwaukee to Midway flights
La Crosse to O'Hare Intl flights
O'Hare Intl to Evansville flights
Minneapolis to Evansville flights
O'Hare Intl to Bloomington flights
Minneapolis to Springfield flights
Milwaukee to Evansville flights
Wausau to St. Louis flights
Minneapolis to Peoria flights
Appleton to Peoria flights
Rhinelander to St. Louis flights
Escanaba to O'Hare Intl flights
Minneapolis to Dubuque flights
Ironwood to O'Hare Intl flights
Wausau to Midway flights
O'Hare Intl to Paducah flights
La Crosse to Midway flights
La Crosse to St. Louis flights
Minneapolis to Champaign flights

Top 2 airlines flying from Green Bay to Chicago

Discover the top 2 airlines that operate flights from Green Bay to Chicago. 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$272FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$217Average$311FlexibilityNo cancel feeOn-time69%

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.