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Green Bay

$126+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GRB
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
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 June 18, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$126
(Delta)

Popular in

December

Cheapest in

April

Average price

$229

Good round-trip deal

$335 or less

Good one-way deal

$203 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. 7% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 18, 2025.

This American Airlines deal was found by Cheapflights users on 6/16. 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 11/59:40 amORD - GRB
Nonstop1h 07mAmerican Airlines
Wed 11/126:16 amGRB - ORD
Nonstop1h 14mAmerican Airlines
Deal found 6/16$179
This United Airlines deal was found by Cheapflights users on 6/16. 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 7/148:20 pmORD - GRB
Nonstop1h 17mUnited Airlines
Mon 7/215:23 pmGRB - ORD
Nonstop1h 19mUnited Airlines
Deal found 6/16$190
This Delta deal was found by Cheapflights users on 6/18. 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 7/53:57 pmSTL - GRB
1 stop6h 07mDelta
Sat 7/126:20 amGRB - STL
1 stop4h 13mDelta
Deal found 6/18$223
This American Airlines deal was found by Cheapflights users on 6/17. 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 10/35:55 amSTL - GRB
1 stop3h 23mAmerican Airlines
Mon 10/69:56 amGRB - STL
2 stops9h 11mAmerican Airlines
Deal found 6/17$234
This Delta deal was found by Cheapflights users on 6/18. 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 8/22:00 pmORD - GRB
1 stop6h 35mDelta
Sat 8/97:00 amGRB - ORD
1 stop5h 50mDelta
Deal found 6/18$239
This United Airlines deal was found by Cheapflights users on 6/15. 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 7/15:00 amSTL - GRB
1 stop5h 11mUnited Airlines
Sat 7/56:15 amGRB - STL
1 stop4h 25mUnited Airlines
Deal found 6/15$325
This Delta deal was found by Cheapflights users on 6/18. 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 8/21:09 pmMDW - GRB
1 stop3h 14mDelta
Sat 8/97:00 amGRB - MDW
1 stop5h 29mDelta
Deal found 6/18$359

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 June 18, 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

Wed 11/5

9:40 am-10:47 am

Nonstop1h 07m

Green Bay Austin-Straubel

Wed 11/12

6:16 am-7:30 am

Nonstop1h 14m

$179

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Mon 7/14

8:20 pm-9:37 pm

Nonstop1h 17m

Green Bay Austin-Straubel

Mon 7/21

5:23 pm-6:42 pm

Nonstop1h 19m

$190

St. LouisGreen Bay

STL - GRB

STLGRB

Lambert-St Louis

Sat 7/5

3:57 pm-10:04 pm

1 stop6h 07m

Green Bay Austin-Straubel

Sat 7/12

6:20 am-10:33 am

1 stop4h 13m

$223

St. LouisGreen Bay

STL - GRB

STLGRB

Lambert-St Louis

Fri 10/3

5:55 am-9:18 am

1 stop3h 23m

Green Bay Austin-Straubel

Mon 10/6

9:56 am-7:07 pm

2 stops9h 11m

$234

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Sat 8/2

2:00 pm-8:35 pm

1 stop6h 35m

Green Bay Austin-Straubel

Sat 8/9

7:00 am-12:50 pm

1 stop5h 50m

$239

St. LouisGreen Bay

STL - GRB

STLGRB

Lambert-St Louis

Tue 7/1

5:00 am-10:11 am

1 stop5h 11m

Green Bay Austin-Straubel

Sat 7/5

6:15 am-10:40 am

1 stop4h 25m

$325

ChicagoGreen Bay

MDW - GRB

MDWGRB

Chicago Midway

Sat 8/2

1:09 pm-4:23 pm

1 stop3h 14m

Green Bay Austin-Straubel

Sat 8/9

7:00 am-12:29 pm

1 stop5h 29m

$359

St. LouisGreen Bay

STL - GRB

STLGRB

Lambert-St Louis

Sat 8/23

6:40 am-10:27 am

1 stop3h 47m

$126

St. LouisGreen Bay

STL - GRB

STLGRB

Lambert-St Louis

Sat 8/23

7:32 am-6:11 pm

2 stops10h 39m

$161

ChicagoGreen Bay

ORD - GRB

ORDGRB

Chicago O'Hare Intl

Fri 7/18

8:19 am-9:21 am

Nonstop1h 02m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 14 results
1
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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 $473). 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 June 18, 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 June 18, 2025.

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

Rainfall in Green Bay by month

Plan your trip to Green Bay by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Green Bay ranges from 1.1 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit Green Bay when rainfall is around 1.1 in.

Temperature in Green Bay by month

Plan your trip to Green Bay by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Green Bay, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing Green Bay

Get insights into the airlines that provide service to Green Bay. 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 Green Bay. Reviews last updated June 18, 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Illinois to Green Bay. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,810 reviews
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 $161 and United Airlines from $219 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 (100%), American Airlines (84%) or United Airlines (84%) 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 $335, our data shows the cheapest flight currently is $148. When looking at the most popular route, (Lambert-St Louis - Green Bay Austin-Straubel), you can expect to pay $329 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 $473). 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 Illinois?

Book flights to Illinois if you plan to visit one of these locations
Marinette
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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$184Average$297FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$207Average$339FlexibilityNo cancel feeOn-time69%

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