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Green Bay

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

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.
ORD — GRB
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Illinois to Green Bay

Keep the following information in mind while searching for Illinois to Green Bay flight deals. Data was last updated September 11, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$124
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$308

Good round-trip deal

$199 or less

Good one-way deal

$309 or less
From Illinois to Green Bay Austin-Straubel
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One-way flight from Illinois to Green Bay Austin-Straubel
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Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($27 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 Illinois to Green Bay Austin-Straubel.
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Price to beat on a one-way flight from Illinois to Green Bay Austin-Straubel.
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Find flight deals from Illinois to Green Bay

Cheapest flights from Illinois to Green Bay
Explore the most affordable flight options available from Illinois to Green Bay. 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 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/178:10 amORD - GRB
Nonstop1h 04mAmerican Airlines
Mon 10/208:08 pmGRB - ORD
Nonstop1h 20mAmerican Airlines
Deal found 9/9$179
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 10/28:11 amORD - GRB
Nonstop1h 07mAmerican Airlines
Sun 10/56:26 pmGRB - ORD
Nonstop1h 23mAmerican Airlines
Deal found 9/10$180
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 9/258:11 amORD - GRB
Nonstop1h 07mAmerican Airlines
Mon 9/296:00 amGRB - ORD
Nonstop1h 16mAmerican Airlines
Deal found 9/10$189
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Mon 9/158:20 pmORD - GRB
Nonstop1h 23mUnited Airlines
Mon 9/226:15 amGRB - ORD
Nonstop1h 20mUnited Airlines
Deal found 9/8$199
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 10/308:00 amSTL - GRB
1 stop4h 33mUnited Airlines
Mon 11/35:22 pmGRB - STL
1 stop5h 23mUnited Airlines
Deal found 9/10$229
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 10/1012:50 pmORD - GRB
Nonstop1h 14mUnited Airlines
Sun 10/125:25 pmGRB - ORD
Nonstop1h 21mUnited Airlines
Deal found 9/9$239
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:05 amSTL - GRB
1 stop3h 13mAmerican Airlines
Mon 9/296:00 amGRB - STL
1 stop3h 26mAmerican Airlines
Deal found 9/9$239
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.
Wed 9/248:20 pmORD - GRB
Nonstop1h 23mUnited Airlines
Sun 9/282:40 pmGRB - ORD
Nonstop1h 20mUnited Airlines
Deal found 9/9$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.
Tue 9/168:50 amORD - GRB
Nonstop1h 15mUnited Airlines
Tue 9/235:30 pmGRB - ORD
Nonstop1h 21mUnited Airlines
Deal found 9/9$259
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 10/166:00 amSTL - GRB
1 stop3h 14mAmerican Airlines
Mon 10/208:08 pmGRB - STL
1 stop3h 46mAmerican Airlines
Deal found 9/10$259
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.
Fri 9/199:17 amSTL - GRB
1 stop3h 27mUnited Airlines
Mon 9/225:30 pmGRB - STL
1 stop4h 02mUnited 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.
Sat 9/1312:15 pmSTL - GRB
1 stop3h 18mDelta
Sat 9/206:05 amGRB - STL
1 stop5h 25mDelta
Deal found 9/11$279

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Green Bay 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 Illinois to Green Bay that are best for you.

Fly from

Illinois

Fly to

Green Bay

Route

Depart

Return

Price

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Tue 10/7

8:10 am-9:14 am

Nonstop1h 04m

Green Bay Austin-Straubel

Tue 10/14

8:08 pm-9:28 pm

Nonstop1h 20m

$179

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Fri 10/17

1:31 pm-2:32 pm

Nonstop1h 01m

Green Bay Austin-Straubel

Mon 10/20

8:08 pm-9:28 pm

Nonstop1h 20m

$179

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Thu 10/2

10:20 pm-11:28 pm

Nonstop1h 08m

Green Bay Austin-Straubel

Thu 10/9

3:02 pm-4:23 pm

Nonstop1h 21m

$179

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Thu 10/2

8:11 am-9:18 am

Nonstop1h 07m

Green Bay Austin-Straubel

Sun 10/5

6:26 pm-7:49 pm

Nonstop1h 23m

$180

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Mon 9/15

8:20 pm-9:43 pm

Nonstop1h 23m

Green Bay Austin-Straubel

Mon 9/22

6:15 am-7:35 am

Nonstop1h 20m

$199

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Wed 9/17

9:25 am-10:41 am

Nonstop1h 16m

Green Bay Austin-Straubel

Wed 9/24

6:00 am-7:16 am

Nonstop1h 16m

$199

St. LouisGreen Bay

STL - GRB

STLGRB

Lambert-St Louis

Thu 10/30

8:00 am-12:33 pm

1 stop4h 33m

Green Bay Austin-Straubel

Mon 11/3

5:22 pm-10:45 pm

1 stop5h 23m

$229

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Fri 10/10

12:50 pm-2:04 pm

Nonstop1h 14m

Green Bay Austin-Straubel

Sun 10/12

5:25 pm-6:46 pm

Nonstop1h 21m

$239

St. LouisGreen Bay

STL - GRB

STLGRB

Lambert-St Louis

Fri 9/26

6:30 am-10:05 am

1 stop3h 35m

Green Bay Austin-Straubel

Tue 9/30

8:00 am-2:27 pm

1 stop6h 27m

$239

St. LouisGreen Bay

STL - GRB

STLGRB

Lambert-St Louis

Thu 9/25

6:05 am-9:18 am

1 stop3h 13m

Green Bay Austin-Straubel

Mon 9/29

6:26 pm-11:48 pm

1 stop5h 22m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 54 results
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Best time to book a flight from Illinois to Green Bay

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Green Bay (average of $331). Flying from Illinois to Green Bay in July is currently the most expensive (average of $463). 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 IL to GRB?

Find hourly flight availability from Illinois to Green Bay. 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.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Green Bay as you normally would.

Weekly flight availability from Illinois to Green Bay

Explore weekly flight availability from Illinois to Green Bay. 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 September 11, 2025.

The most flights from USIL to GRB are scheduled on a Thursday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

Related info for your journey

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

    For a flight from Illinois to Green Bay, you will be flying into Austin-Straubel. Green Bay Austin-Straubel (GRB) is just 5.9 mi from the center of the city.

  • How long is the flight from Illinois to Green Bay?

    Departing from Illinois to Green Bay will take you 1h 04m. Illinois and Green Bay are separated by a distance of 173 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Illinois to Green Bay one-way?

    One-way options have recently been found by users for as low as $126 on Delta. Other airlines that offer cheap prices include American Airlines from $156 and United Airlines from $267 one-way.

  • What are the most popular routes from Illinois to Green Bay?

    The most popular flight routes from Illinois to Green Bay are Lambert-St Louis - Green Bay Austin-Straubel, Chicago O'Hare Intl - Green Bay Austin-Straubel and Chicago Midway - Green Bay Austin-Straubel.

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

    No one likes to see their flight delayed. When booking a flight from Illinois to Green Bay consider choosing Republic Airways (80%), Air New Zealand (69%) or GoJet (67%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Illinois to Green Bay is generally $347, our data shows the cheapest flight currently is $179. When looking at the most popular route, (Lambert-St Louis - Green Bay Austin-Straubel), you can expect to pay $229 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Green Bay (average of $331). Flying from Illinois to Green Bay in July is currently the most expensive (average of $463). 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 Green Bay?

Book flights to Green Bay if you plan to visit one of these locations
Manitowoc

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Alternative routes for Illinois to Green Bay

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Illinois to Green Bay

Discover the top 2 airlines that operate flights from Illinois to Green Bay. 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$179Average$253FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$184Average$337FlexibilityNo cancel feeOn-time69%

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