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O'Hare Intl

$124+ Cheap flights from Green Bay (GRB) to O'Hare Intl (ORD)

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Green Bay to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to O'Hare Intl (ORD). 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 September 11, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$124
(American Airlines)

Popular in

August

Cheapest in

June

Average price

$284

Good round-trip deal

$373 or less

Good one-way deal

$213 or less
From Green Bay Austin-Straubel to Chicago O'Hare Intl
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One-way flight from Green Bay Austin-Straubel to Chicago O'Hare Intl
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Highest demand for flights based on searches. 6% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Green Bay Austin-Straubel to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Green Bay Austin-Straubel to Chicago O'Hare Intl.
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Find flight deals from Green Bay to O'Hare Intl

Cheapest flights from Green Bay to O'Hare Intl
Explore the most affordable flight options available from Green Bay to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/168:08 pmGRB - ORD
Nonstop1h 20mAmerican Airlines
Sun 10/198:10 amORD - GRB
Nonstop1h 04mAmerican Airlines
Deal found 9/10$179
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/252:40 pmGRB - ORD
Nonstop1h 20mUnited Airlines
Mon 9/2911:30 amORD - GRB
Nonstop1h 14mUnited Airlines
Deal found 9/10$189
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 9/234:35 pmGRB - ORD
Nonstop1h 21mAmerican Airlines
Tue 9/308:05 amORD - GRB
Nonstop1h 11mAmerican Airlines
Deal found 9/10$199
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 10/114:16 pmGRB - ORD
1 stop5h 03mDelta
Mon 10/136:08 amORD - GRB
1 stop3h 58mDelta
Deal found 9/10$214
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 12/311:06 amGRB - ORD
Nonstop1h 23mAmerican Airlines
Sun 12/77:19 pmORD - GRB
Nonstop1h 10mAmerican Airlines
Deal found 9/11$224
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/42:40 pmGRB - ORD
Nonstop1h 20mUnited Airlines
Sun 10/59:25 pmORD - GRB
Nonstop1h 15mUnited Airlines
Deal found 9/10$239
This Delta deal was found by Cheapflights users on 9/10. 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.
Wed 10/2211:06 amGRB - ORD
1 stop5h 05mDelta
Sat 10/256:08 amORD - GRB
1 stop5h 14mDelta
Deal found 9/10$247
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 9/266:35 pmGRB - ORD
Nonstop1h 20mUnited Airlines
Tue 9/309:25 pmORD - GRB
Nonstop1h 15mUnited Airlines
Deal found 9/11$249
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 12/266:15 amGRB - ORD
Nonstop1h 33mUnited Airlines
Sat 1/36:35 pmORD - GRB
Nonstop1h 25mUnited Airlines
Deal found 9/9$254
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 12/72:55 pmGRB - ORD
Nonstop1h 24mAmerican Airlines
Sun 12/148:05 amORD - GRB
Nonstop1h 08mAmerican Airlines
Deal found 9/10$269
This Delta deal was found by Cheapflights users on 9/11. 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.
Wed 12/34:53 pmGRB - ORD
1 stop3h 38mDelta
Sun 12/76:00 amORD - GRB
1 stop5h 33mDelta
Deal found 9/11$374
This Delta deal was found by Cheapflights users on 9/9. 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.
Wed 10/812:02 pmGRB - ORD
1 stop4h 48mDelta
Wed 10/157:10 amORD - GRB
1 stop3h 16mDelta
Deal found 9/9$389

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to O'Hare Intl 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 September 11, 2025.
Use the filters below to find and compare flights from Green Bay to Chicago O'Hare Intl Airport that are best for you.

Fly from

Green Bay

Fly to

O'Hare Intl

Route

Depart

Return

Price

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Thu 10/16

8:08 pm-9:28 pm

Nonstop1h 20m

Chicago O'Hare Intl

Sun 10/19

8:10 am-9:14 am

Nonstop1h 04m

$179

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Wed 10/22

8:08 pm-9:28 pm

Nonstop1h 20m

Chicago O'Hare Intl

Sat 10/25

8:10 am-9:14 am

Nonstop1h 04m

$179

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Wed 10/8

6:00 am-7:18 am

Nonstop1h 18m

Chicago O'Hare Intl

Wed 10/15

8:10 am-9:14 am

Nonstop1h 04m

$179

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Thu 10/9

3:02 pm-4:23 pm

Nonstop1h 21m

Chicago O'Hare Intl

Thu 10/16

8:10 am-9:14 am

Nonstop1h 04m

$179

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Sat 10/11

3:02 pm-4:23 pm

Nonstop1h 21m

Chicago O'Hare Intl

Mon 10/13

8:10 am-9:14 am

Nonstop1h 04m

$179

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Thu 9/25

2:40 pm-4:00 pm

Nonstop1h 20m

Chicago O'Hare Intl

Mon 9/29

11:30 am-12:44 pm

Nonstop1h 14m

$189

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Fri 9/26

2:40 pm-4:00 pm

Nonstop1h 20m

Chicago O'Hare Intl

Sun 9/28

8:50 am-10:05 am

Nonstop1h 15m

$189

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Fri 12/26

6:40 am-11:48 am

1 stop5h 08m

Chicago O'Hare Intl

Sat 1/3

9:41 am-3:39 pm

1 stop5h 58m

$199

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Tue 9/23

4:35 pm-5:56 pm

Nonstop1h 21m

Chicago O'Hare Intl

Tue 9/30

8:05 am-9:16 am

Nonstop1h 11m

$199

Green BayChicago

GRB - ORD

GRBORD

Green Bay Austin-Straubel

Sat 10/11

4:16 pm-9:19 pm

1 stop5h 03m

Chicago O'Hare Intl

Mon 10/13

6:08 am-10:06 am

1 stop3h 58m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 23 results
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Best time to book a flight from Green Bay to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl Airport

What is the cheapest month to book a flight from Green Bay to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Green Bay to Chicago O'Hare Intl Airport (average of $245). Flying from Green Bay to Chicago O'Hare Intl Airport 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 ORD?

Find hourly flight availability from Green Bay to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Green Bay to Chicago O'Hare Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Green Bay to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Green Bay to O'Hare Intl. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Green Bay to Chicago O'Hare Intl Airport 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.

How much does it cost to fly round-trip from Green Bay to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Green Bay to Chicago O'Hare Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

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
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

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
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

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 O'Hare Intl. 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 O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from Green Bay, you will be flying from Austin-Straubel, which is the city’s only airport. Green Bay Austin-Straubel (GRB) is located 5.9 mi from the center of Green Bay. There are 18 flights from Austin-Straubel to Chicago O'Hare Intl per day from 2 different airlines.

  • How long is the flight from Green Bay to Chicago O'Hare Intl Airport?

    American Airlines can get you from Green Bay to Chicago O'Hare Intl Airport in just under 1h 20m. Your travel time will be generally consistent. Green Bay and Chicago O'Hare Intl Airport are separated by a distance of 173 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Green Bay to Chicago O'Hare Intl Airport round-trip?

    American Airlines, at $189, was found to be the cheapest airline from Green Bay to Chicago O'Hare Intl Airport. An alternate airline flying to your destination would be United Airlines. American Airlines is currently priced 33% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Green Bay to Chicago O'Hare Intl Airport?

    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 O'Hare Intl Airport on time: Republic Airways (100%), Copa Airlines (82%), Air New Zealand (79%).

  • What are the cheapest flights from Green Bay to Chicago O'Hare Intl Airport?

    Looking at all options, your cheapest flight can be booked for $158. While the most popular route (Green Bay Austin-Straubel - Chicago O'Hare Intl) can be booked for $179 on average, our data indicates $906 when flying from Green Bay to Chicago O'Hare Intl Airport.

  • Can I find deals for flights from Green Bay to O'Hare Intl that include hotel bookings?

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

  • How can I find direct flights from Green Bay to O'Hare Intl?

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

  • Can I find deals for business class flights from Green Bay to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Green Bay to O'Hare Intl 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 O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Green Bay to Chicago O'Hare Intl Airport (average of $245). Flying from Green Bay to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Beloit
Racine
Rockford
Orland Park
Oak Brook
Downers Grove
Naperville
Elk Grove Village
Evanston
Merrillville
Bridgeview
Warrenville

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Green Bay to O'Hare Intl

Discover the top 2 airlines that operate flights from Green Bay to O'Hare Intl. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$267FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$217Average$318FlexibilityNo cancel feeOn-time69%

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