$170+ Cheap flights from Greenville to Milwaukee (GSP - 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 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — MKE
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Greenville 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
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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 Greenville to Milwaukee
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Cheapest flights from Greenville to MilwaukeeExplore 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 September 15, 2026.
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 September 15, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:32 pm -
1 stop13h 44m
Thu 11/1910:15 am -
1 stop8h 44m
Deal found 9/13![Multiple Airlines logo]()
$269
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.
Wed 12/97:41 pm -
1 stop4h 25m
Sun 12/135:04 am -
1 stop5h 03m
Deal found 9/14![American Airlines logo]()
$327
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 12/36:42 pm -
1 stop4h 55m
Sun 12/66:31 pm -
1 stop4h 01m
Deal found 9/10![American Airlines logo]()
$328
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:20 am -
1 stop6h 08m
Sat 10/318:00 am -
1 stop4h 21m
Deal found 9/14![United Airlines logo]()
$337
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:05 am -
1 stop3h 35m
Sun 12/62:35 pm -
2 stops7h 20m
Deal found 9/14![Southwest logo]()
$350
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.
Fri 12/411:21 am -
1 stop6h 17m
Sun 12/65:10 am -
1 stop4h 43m
Deal found 9/14![American Airlines logo]()
$362
Best flights from Greenville to MilwaukeeDiscover carefully curated flight deals from Greenville to Milwaukee that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Greenville to Milwaukee that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:20 am -
1 stop6h 08m
Sat 10/318:00 am -
1 stop4h 21m
Deal found 9/14![United Airlines logo]()
$337
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:05 am -
1 stop3h 35m
Sun 12/62:35 pm -
2 stops7h 20m
Deal found 9/14![Southwest logo]()
$350
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.
Tue 11/35:16 pm -
2 stops7h 39m
Tue 11/107:17 am -
1 stop6h 39m
Deal found 9/12![American Airlines logo]()
$368
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:08 am -
1 stop6h 24m
Sun 10/185:30 am -
1 stop4h 30m
Deal found 9/10![Delta logo]()
$381
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:40 pm -
1 stop4h 40m
Sun 10/255:55 am -
2 stops5h 25m
Deal found 9/10![Southwest logo]()
$378
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:21 am -
1 stop6h 17m
Sun 12/66:31 pm -
1 stop4h 01m
Deal found 9/11![American Airlines logo]()
$390
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.
Thu 12/175:40 am -
1 stop7h 05m
Mon 12/219:45 am -
1 stop7h 09m
Deal found 9/11![Delta logo]()
$401
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:20 am -
1 stop4h 47m
Sun 10/185:00 am -
1 stop3h 58m
Deal found 9/13![United Airlines logo]()
$409
Last-minute flights from Greenville to MilwaukeeDiscover last-minute flight deals from Greenville to Milwaukee. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Greenville to Milwaukee. Data last updated September 15, 2026 and is based on user searches.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:08 am -
1 stop6h 24m
Sun 10/185:30 am -
1 stop4h 30m
Deal found 9/10![Delta logo]()
$381
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 10/226:01 am -
1 stop6h 11m
Sun 10/255:00 am -
1 stop5h 08m
Deal found 9/12![American Airlines logo]()
$380
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 10/234:10 pm -
1 stop6h 42m
Sun 10/255:00 am -
1 stop5h 08m
Deal found 9/10![American Airlines logo]()
$363
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:40 pm -
1 stop4h 40m
Sun 10/255:55 am -
2 stops5h 25m
Deal found 9/10![Southwest logo]()
$378
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:20 am -
1 stop6h 08m
Sat 10/318:00 am -
1 stop4h 21m
Deal found 9/14![United Airlines logo]()
$337
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:10 pm -
1 stop4h 05m
Mon 11/27:05 am -
1 stop4h 20m
Deal found 9/13![Southwest logo]()
$392
One-way flights from Greenville to MilwaukeeSearch for one-way flight options from Greenville to Milwaukee. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Greenville to Milwaukee. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:01 am -
1 stop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![American Airlines logo]()
$170
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:40 am -
1 stop4h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Delta logo]()
$207
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.
Mon 9/286:23 pm -
1 stop4h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:20 am -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$250
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:47 pm -
3 stops45h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$295
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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $269 (Kiwi.com) |
One-way from | $170 (American Airlines) |
Popular in | February |
Cheapest in | August |
Average price | $432 |
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 7,457,451 searches. Data last updated September 15, 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
Cheapest round-trip
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Sat 11/21
7:01 am-12:16 pm
1 stop6h 15m
Milwaukee-Mitchell
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$182
Quickest round-trip
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Fri 10/16
5:40 am-9:11 am
1 stop4h 31m
Milwaukee-Mitchell
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$207
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Thu 10/8
7:20 am-12:44 pm
1 stop6h 24m
Milwaukee-Mitchell
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$250
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Mon 9/28
2:51 pm-10:59 pm
2 stops9h 08m
Milwaukee-Mitchell
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$307
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Tue 10/27
6:20 am-11:28 am
1 stop6h 08m
Milwaukee-Mitchell
Sat 10/31
8:00 am-1:21 pm
1 stop4h 21m
$337
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Thu 12/3
7:05 am-9:40 am
1 stop3h 35m
Milwaukee-Mitchell
Sun 12/6
2:35 pm-10:55 pm
2 stops7h 20m
$350
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Tue 11/3
5:16 pm-11:55 pm
2 stops7h 39m
Milwaukee-Mitchell
Tue 11/10
7:17 am-2:56 pm
1 stop6h 39m
$368
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Fri 10/23
8:40 pm-12:20 am
1 stop4h 40m
Milwaukee-Mitchell
Sun 10/25
5:55 am-12:20 pm
2 stops5h 25m
$378
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Fri 10/16
10:08 am-3:32 pm
1 stop6h 24m
Milwaukee-Mitchell
Sun 10/18
5:30 am-11:00 am
1 stop4h 30m
$381
GreenvilleMilwaukee
GSP Greenville - MKE Milwaukee-Mitchell
GSPMKE
Greenville
Thu 12/3
11:21 am-4:38 pm
1 stop6h 17m
Milwaukee-Mitchell
Sun 12/6
6:31 pm-11:32 pm
1 stop4h 01m
$390
Showing 1-10 of 12 resultsSorted by cheapest first
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 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 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.
GSP-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.
Cheapflights Insights
Everything you need to know about your flight from Greenville to Milwaukee
What’s the top layover airport for flights from Greenville to Milwaukee?
Share of 1-stop round-trip flights from Greenville to Milwaukee chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 75% of 1-stop itineraries from Greenville to Milwaukee on Cheapflights.
What’s the cheapest layover airport for flights from Greenville to Milwaukee?
Average round-trip fare for 1-stop flights from Greenville to Milwaukee, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Baltimore (BWI) is the most affordable 1-stop option, with an average round-trip price of $284.
What’s the fastest layover option from Greenville to Milwaukee?
Shortest average travel time for 1-stop one-way flights from Greenville to Milwaukee, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Baltimore (BWI) have the shortest average one-way travel time for 1-stop routes: 6h 00m.
Which airport typically offers the quickest layover for flights from Greenville to Milwaukee?
Average layover duration for 1-stop one-way flights from Greenville to Milwaukee, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Baltimore (BWI) offer the fastest connection on this route, with an average layover time of 1h 35m.
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 September 15, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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.
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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.
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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Other flights to Milwaukee
Explore flights to Milwaukee departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
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Browse other Greenville and Milwaukee flight options. Last updated on September 15, 2026.
Other flights from Greenville
Browse through other flights departing from Greenville. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Greenville to Milwaukee
Discover the top 4 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$258 | Average$382 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$397 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$407 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$320 | Average$437 | FlexibilityNo cancel fee | On-time71% |