$134 Find Cheap Flights from Green Bay to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Green Bay to Illinois departing on 3/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Green Bay to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Green Bay to Illinois, as well as popular online travel agencies
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Cheap Flights from Green Bay to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$177
St. Louis
St. Louis1 stop$249
Chicago
Chicago1 stop$177
St. Louis
St. Louis1 stop$249

Book Cheap Green Bay to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Green Bay to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Green Bay to Illinois

Tue, Mar 17 - Tue, Mar 24
Delta Logo
7:00 am - 12:29 pm
GRB
-
MDW
5h 29m
1 stop
Delta Logo
1:10 pm - 4:31 pm
MDW
-
GRB
3h 21m
1 stop
$177Delta
Wed, Apr 8 - Fri, Apr 17
Delta Logo
12:00 pm - 6:02 pm
GRB
-
ORD
6h 02m
1 stop
Delta Logo
6:25 am - 11:18 am
ORD
-
GRB
4h 53m
1 stop
$177Delta
Wed, Apr 8 - Fri, Apr 17
American Airlines Logo
5:24 pm - 6:58 pm
GRB
-
ORD
1h 34mnonstop
American Airlines Logo
10:22 pm - 11:31 pm
ORD
-
GRB
1h 09mnonstop
$179American Airlines
Tue, Mar 24 - Tue, Apr 7
Delta Logo
12:00 pm - 6:00 pm
GRB
-
ORD
6h 00m
1 stop
Delta Logo
6:15 am - 11:18 am
ORD
-
GRB
5h 03m
1 stop
$188Delta
Sun, Mar 8 - Fri, Apr 24
American Airlines Logo
6:01 am - 7:25 am
GRB
-
ORD
1h 24mnonstop
American Airlines Logo
10:22 pm - 11:31 pm
ORD
-
GRB
1h 09mnonstop
$194American Airlines
Wed, Mar 4 - Sun, Mar 8
American Airlines Logo
5:00 am - 6:24 am
GRB
-
ORD
1h 24mnonstop
American Airlines Logo
8:50 am - 9:56 am
ORD
-
GRB
1h 06mnonstop
$209American Airlines
Thu, Mar 12 - Sun, Mar 15
United Airlines Logo
2:54 pm - 9:07 pm
GRB
-
STL
6h 13m
1 stop
United Airlines Logo
7:41 am - 2:06 pm
STL
-
GRB
6h 25m
1 stop
$264United Airlines
Wed, Mar 25 - Sat, Mar 28
United Airlines Logo
5:28 pm - 9:07 pm
GRB
-
STL
3h 39m
1 stop
United Airlines Logo
7:41 am - 2:06 pm
STL
-
GRB
6h 25m
1 stop
$274United Airlines
Mon, Mar 9 - Mon, Mar 16
United Airlines Logo
2:54 pm - 9:07 pm
GRB
-
STL
6h 13m
1 stop
United Airlines Logo
7:40 am - 2:06 pm
STL
-
GRB
6h 26m
1 stop
$314United Airlines
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
10:33 am - 4:02 pm
GRB
-
STL
5h 29m
1 stop
United Airlines Logo
6:25 am - 9:59 am
STL
-
GRB
3h 34m
1 stop
$319United Airlines
Booking Insights

KAYAK's insights & trends for Green Bay to Illinois flights

Get data-powered insights and trends into flights from Green Bay to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Green Bay to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Green Bay to Illinois departing in April.

What is the cheapest Green Bay to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Green Bay found in the last 72 hours was to Chicago, at $273 round-trip. The most popular route is from Green Bay (GRB) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $273.

Can I save money by flying with a layover from Green Bay to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $265, prices are generally cheapest when you fly direct.

What’s the cheapest day of the week to fly from Green Bay to Illinois?

The average price of all round-trip flights from Green Bay to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Green Bay to Illinois. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

Good to know

Low seasonNovember
Cheapest flight$134
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Green Bay to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Green Bay to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Green Bay to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Green Bay to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Green Bay to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Green Bay to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Green Bay to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Green Bay to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Green Bay to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $462 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally at night, which is peak travel time and where the average cost of a ticket is $679.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Green Bay to the following destinations at these prices or less: Chicago $280 one-way - $343 round-trip

Reviews of the top airlines flying from Green Bay to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Green Bay to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Green Bay to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9325 reviews
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

8.0 ExcellentDarly, Feb 2026
LAX - ORD
Read more United Airlines reviews

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

Waiting for gate in RDU for more than 20mins is crazy.

American Airlines was great and worked very hard to change my ticket so I could get an earlier, direct flight back to Dallas. However, I was informed that Kayak made mistakes with my itinerary and classified my ticket as desiring to be on the earlier flight instead of taking the necessary step of calling AA to get me on the standby list. This ended up keeping me from being added to the standby list and delayed me getting home by 6 hours. I am happy to discuss this further with Kayak so they can correct their procedures so this won't happen again.

Waited for oxygen tanks for 30 minutes after boarding was complete.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

Everything you need to know for your flight from Green Bay to Illinois

Information on your arrival and departure airports