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$160+ Cheap flights from Greenville to Milwaukee (GSP - MKE)

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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — MKE
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap flight deals from Greenville to Milwaukee

Cheapest flights from Greenville to Milwaukee
Explore the most affordable flight options available from Greenville to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Southwest deal was found by Cheapflights users on 3/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:45 am
GSP
-
MKE
1 stop4h 45m
Southwest
Wed 4/2211:30 am
MKE
-
GSP
1 stop3h 50m
Southwest
Deal found 3/18$319
This Southwest deal was found by Cheapflights users on 3/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:25 am
GSP
-
MKE
1 stop3h 50m
Southwest
Wed 4/2211:30 am
MKE
-
GSP
1 stop3h 50m
Southwest
Deal found 3/19$328
This American Airlines deal was found by Cheapflights users on 3/20. 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 4/138:16 pm
GSP
-
MKE
1 stop4h 24m
American Airlines
Wed 4/151:53 pm
MKE
-
GSP
1 stop4h 53m
American Airlines
Deal found 3/20$333
This Southwest deal was found by Cheapflights users on 3/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:25 am
GSP
-
MKE
1 stop3h 50m
Southwest
Sat 4/252:10 pm
MKE
-
GSP
1 stop5h 30m
Southwest
Deal found 3/19$337
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Sat 4/188:16 pm
GSP
-
MKE
1 stop4h 24m
American Airlines
Mon 4/204:26 pm
MKE
-
GSP
2 stops6h 31m
American Airlines
Deal found 3/19$352

Find flight deals from Greenville to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) 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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(Southwest)

One-way from

$160
(United Airlines)

Popular in

October

Cheapest in

September

Average price

$371
Provider with most accurate pricing for Greenville-Milwaukee-Mitchell flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greenville-Milwaukee-Mitchell flights.
Search Deals
From Greenville to Milwaukee-Mitchell
Search Deals
One-way flight from Greenville to Milwaukee-Mitchell
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Greenville 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 2,558,603 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Greenville to Milwaukee that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Sat 4/18

6:25 am-9:15 am

1 stop3h 50m

Milwaukee-Mitchell

Sat 4/25

2:10 pm-8:40 pm

1 stop5h 30m

$337

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Thu 5/14

6:25 am-12:00 pm

1 stop6h 35m

Milwaukee-Mitchell

Fri 5/22

3:30 pm-8:55 pm

1 stop4h 25m

$367

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Sat 4/18

7:30 am-1:14 pm

1 stop6h 44m

Milwaukee-Mitchell

Tue 4/21

5:33 pm-11:56 pm

1 stop5h 23m

$369

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Fri 4/10

6:25 pm-11:00 pm

2 stops5h 35m

Milwaukee-Mitchell

Sat 4/11

5:00 am-11:50 am

1 stop5h 50m

$382

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Thu 6/18

6:41 pm-10:24 pm

1 stop4h 43m

Milwaukee-Mitchell

Sun 6/21

6:01 am-12:31 pm

1 stop5h 30m

$387

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Wed 8/5

5:29 pm-10:57 pm

1 stop6h 28m

Milwaukee-Mitchell

Wed 8/12

6:05 am-2:16 pm

1 stop7h 11m

$387
Quickest round-trip

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Sun 4/19

5:40 am-9:05 am

1 stop4h 25m

Milwaukee-Mitchell

Tue 4/21

7:00 am-12:21 pm

1 stop4h 21m

$388

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Sun 4/19

5:40 am-9:05 am

1 stop4h 25m

Milwaukee-Mitchell

Wed 4/22

5:30 am-12:21 pm

1 stop5h 51m

$388

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Tue 4/7

5:41 pm-9:49 pm

1 stop5h 08m

Milwaukee-Mitchell

Wed 4/8

2:32 pm-8:47 pm

1 stop5h 15m

$389
Cheapest one-way
Quickest one-way

GreenvilleMilwaukee

GSP - MKE

GSPMKE

Greenville

Wed 5/13

6:36 am-9:45 am

1 stop4h 09m

$160

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Greenville 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 Greenville to Milwaukee in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Greenville-Milwaukee flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Greenville-Milwaukee flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Greenville-Milwaukee flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Greenville-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 Greenville-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 Greenville to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee from Greenville 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 Greenville to Milwaukee

What is the cheapest month to book a flight from Greenville to Milwaukee?

Currently, January is the cheapest month in which you can book a flight from Greenville to Milwaukee (average of $58). Flying from Greenville to Milwaukee in July is currently the most expensive (average of $136). 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.

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. 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 Milwaukee. Reviews last updated March 22, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Greenville to Milwaukee to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,319 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,319 reviews
Delta
7.9
Good
8,319 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,460 reviews
Delta
7.9
Good
8,319 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,489 reviews
Delta
7.9
Good
8,319 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Greenville to Milwaukee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Greenville to Milwaukee?

    A quick flight from Greenville to Milwaukee can take about 3h 50m. Southwest provides one of the quickest options available for as low as $337. Greenville and Milwaukee are separated by a distance of 634 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Greenville to Milwaukee round-trip?

    Currently priced at $168, American Airlines will fly you from Greenville to Milwaukee and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $236 and $266, respectively. American Airlines is currently priced 58% below the average price you’ll pay for this route.

  • Can I find deals for flights from Greenville to Milwaukee that include hotel bookings?

    Yes. In addition to deals on Greenville to Milwaukee flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Greenville to Milwaukee?

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

  • Can I find deals for business class flights from Greenville to Milwaukee?

    Yes. Cheapflights offers flight deals from Greenville to Milwaukee 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 Greenville to Milwaukee?

    Currently, January is the cheapest month in which you can book a flight from Greenville to Milwaukee (average of $58). Flying from Greenville to Milwaukee in July is currently the most expensive (average of $136). 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 Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
Port Washington
New Berlin
Oak Creek
Wauwatosa

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Greenville to Milwaukee

Discover the top 3 airlines that operate flights from Greenville to Milwaukee. 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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$168Average$372FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$366FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$266Average$382FlexibilityNo cancel feeOn-time69%

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