$234+ Cheap flights from Green Bay to Milwaukee (GRB - MKE)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — MKE
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Find cheap flights from Green Bay to Milwaukee 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 Milwaukee
Cheapest
Best
Last-minute
One-way
Cheapest flights from Green Bay to MilwaukeeExplore the most affordable flight options available from Green Bay to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
Explore the most affordable flight options available from Green Bay to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
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 11/126:15 am -
1 stop3h 58m
Sun 11/156:47 am -
1 stop3h 15m
Deal found 9/10![United Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 11/126:54 pm -
1 stop3h 43m
Sun 11/157:40 am -
1 stop6h 19m
Deal found 9/13![American Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/2910:05 am -
1 stop4h 11m
Sat 10/32:48 pm -
1 stop5h 08m
Deal found 9/14![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/12. 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 10/15:43 am -
1 stop5h 24m
Sun 10/117:19 pm -
1 stop4h 53m
Deal found 9/12![American Airlines logo]()
$379
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.
Fri 9/258:27 pm -
1 stop17h 49m
Tue 9/295:03 am -
1 stop4h 32m
Deal found 9/10![American Airlines logo]()
$447
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 10/249:05 am -
1 stop6h 06m
Wed 10/286:18 pm -
1 stop15h 44m
Deal found 9/10![United Airlines logo]()
$505
Best flights from Green Bay to MilwaukeeDiscover carefully curated flight deals from Green Bay to Milwaukee that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
Discover carefully curated flight deals from Green Bay to Milwaukee that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
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 11/126:15 am -
1 stop3h 58m
Sun 11/156:47 am -
1 stop3h 15m
Deal found 9/10![United Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/2910:05 am -
1 stop4h 11m
Sat 10/32:48 pm -
1 stop5h 08m
Deal found 9/14![American Airlines logo]()
$339
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 10/95:00 am -
1 stop6h 30m
Tue 10/136:32 pm -
1 stop4h 47m
Deal found 9/11![United Airlines logo]()
$339
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 2/198:25 am -
1 stop5h 18m
Sun 2/216:00 am -
1 stop2h 51m
Deal found 9/10![United Airlines logo]()
$378
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.
Sat 10/249:05 am -
1 stop6h 06m
Wed 10/286:18 pm -
1 stop15h 44m
Deal found 9/9![United Airlines logo]()
$505
Last-minute flights from Green Bay to MilwaukeeDiscover last-minute flight deals from Green Bay to Milwaukee. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Green Bay to Milwaukee. Data last updated September 14, 2026 and is based on user searches.
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.
Fri 9/258:27 pm -
1 stop17h 49m
Tue 9/295:03 am -
1 stop4h 32m
Deal found 9/10![American Airlines logo]()
$447
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/2910:05 am -
1 stop4h 11m
Sat 10/32:48 pm -
1 stop5h 08m
Deal found 9/14![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/12. 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 10/15:43 am -
1 stop5h 24m
Sun 10/117:19 pm -
1 stop4h 53m
Deal found 9/12![American Airlines logo]()
$379
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 10/249:05 am -
1 stop6h 06m
Wed 10/286:18 pm -
1 stop15h 44m
Deal found 9/10![United Airlines logo]()
$505
One-way flights from Green Bay to MilwaukeeSearch for one-way flight options from Green Bay to Milwaukee. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
Search for one-way flight options from Green Bay to Milwaukee. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
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 12/16:53 pm -
1 stop3h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![American Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/15:00 am -
1 stop6h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Mon 10/198:04 pm -
1 stop18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![American Airlines logo]()
$478
Find flight deals from Green Bay to Milwaukee
Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Milwaukee (MKE). 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 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $289 (United Airlines) |
One-way from | $234 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Green Bay to Milwaukee 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 7,457,451 searches. Data last updated September 14, 2026.
Use the filters below to find and compare flights from Green Bay to Milwaukee that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Green BayMilwaukee
GRB Green Bay Austin-Straubel - MKE Milwaukee-Mitchell
GRBMKE
Green Bay Austin-Straubel
Tue 12/1
6:53 pm-10:40 pm
1 stop3h 47m
Milwaukee-Mitchell
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$234
Green BayMilwaukee
GRB Green Bay Austin-Straubel - MKE Milwaukee-Mitchell
GRBMKE
Green Bay Austin-Straubel
Thu 11/12
6:15 am-10:13 am
1 stop3h 58m
Milwaukee-Mitchell
Sun 11/15
6:47 am-10:02 am
1 stop3h 15m
$289
Green BayMilwaukee
GRB Green Bay Austin-Straubel - MKE Milwaukee-Mitchell
GRBMKE
Green Bay Austin-Straubel
Thu 10/1
5:00 am-11:30 am
1 stop6h 30m
Milwaukee-Mitchell
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$319
Green BayMilwaukee
GRB Green Bay Austin-Straubel - MKE Milwaukee-Mitchell
GRBMKE
Green Bay Austin-Straubel
Tue 9/29
10:05 am-2:16 pm
1 stop4h 11m
Milwaukee-Mitchell
Sat 10/3
2:48 pm-7:56 pm
1 stop5h 08m
$339
Green BayMilwaukee
GRB Green Bay Austin-Straubel - MKE Milwaukee-Mitchell
GRBMKE
Green Bay Austin-Straubel
Fri 10/9
5:00 am-11:30 am
1 stop6h 30m
Milwaukee-Mitchell
Tue 10/13
6:32 pm-11:19 pm
1 stop4h 47m
$339
Green BayMilwaukee
GRB Green Bay Austin-Straubel - MKE Milwaukee-Mitchell
GRBMKE
Green Bay Austin-Straubel
Fri 2/19
8:25 am-1:43 pm
1 stop5h 18m
Milwaukee-Mitchell
Sun 2/21
6:00 am-8:51 am
1 stop2h 51m
$378
Green BayMilwaukee
GRB Green Bay Austin-Straubel - MKE Milwaukee-Mitchell
GRBMKE
Green Bay Austin-Straubel
Sat 10/24
9:05 am-3:11 pm
1 stop6h 06m
Milwaukee-Mitchell
Wed 10/28
6:18 pm-10:02 am
1 stop15h 44m
$505
Sorted by cheapest first
Compare providers for flights from Green Bay to Milwaukee
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Green Bay to Milwaukee in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Green Bay-Milwaukee flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Green Bay-Milwaukee flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Green Bay-Milwaukee flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Green Bay-Milwaukee flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Green Bay-Milwaukee flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Green Bay to Milwaukee
Have a flexible travel schedule? Discover the best time to fly to Milwaukee from Green Bay with our price prediction graph.
GRB-MKE
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.
Related info for your journey
Find useful and relevant information for your journey from Green Bay to Milwaukee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Milwaukee?
Book flights to Milwaukee if you plan to visit one of these locationsPort Washington
Sheboygan
New Berlin
Oak Creek
Wauwatosa
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