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$111+ Cheap flights from San Francisco to Milwaukee (SFO - 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — MKE
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from San Francisco to Milwaukee

Cheapest flights from San Francisco to Milwaukee
Explore the most affordable flight options available from San Francisco to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Frontier deal was found by Cheapflights users on 1/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/510:58 pm
SFO
-
MKE
1 stop9h 05m
Frontier
Mon 3/1610:37 am
MKE
-
SFO
1 stop10h 37m
Frontier
Deal found 1/20$228
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/269:04 pm
SFO
-
MKE
1 stop19h 47m
Frontier
Tue 3/311:57 pm
MKE
-
SFO
1 stop9h 22m
Frontier
Deal found 1/20$245
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:45 am
SFO
-
MKE
1 stop8h 28m
Delta
Sat 2/283:53 pm
MKE
-
SFO
1 stop7h 45m
Delta
Deal found 1/19$251
This American Airlines deal was found by Cheapflights users on 1/21. 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 2/1812:46 pm
SFO
-
MKE
2 stops8h 11m
American Airlines
Wed 2/2511:33 am
MKE
-
SFO
1 stop10h 41m
American Airlines
Deal found 1/21$256
This Delta deal was found by Cheapflights users on 1/21. 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.
Tue 4/711:35 pm
SFO
-
MKE
1 stop7h 29m
Delta
Sat 4/184:00 pm
MKE
-
SFO
1 stop6h 51m
Delta
Deal found 1/21$257
This Delta deal was found by Cheapflights users on 1/21. 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.
Tue 4/710:40 pm
SFO
-
MKE
1 stop8h 10m
Delta
Wed 4/157:20 am
MKE
-
SFO
2 stops13h 41m
Delta
Deal found 1/21$260
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2012:40 am
SFO
-
MKE
1 stop7h 35m
Delta
Tue 2/247:30 am
MKE
-
SFO
2 stops17h 11m
Delta
Deal found 1/19$267
This Priceline deal was found by Cheapflights users on 1/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:00 am
SFO
-
MKE
1 stop10h 51m
Frontier
Mon 3/910:48 am
MKE
-
SFO
1 stop10h 26m
Frontier
Deal found 1/18$268
This Delta deal was found by Cheapflights users on 1/21. 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.
Mon 5/1812:40 am
SFO
-
MKE
1 stop8h 31m
Delta
Wed 5/271:00 pm
MKE
-
SFO
2 stops12h 46m
Delta
Deal found 1/21$272
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/216:05 am
SFO
-
MKE
1 stop6h 25m
Delta
Thu 2/262:57 pm
MKE
-
SFO
1 stop8h 00m
Delta
Deal found 1/19$276
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:55 am
SFO
-
MKE
2 stops13h 37m
Delta
Sat 2/2811:15 am
MKE
-
SFO
1 stop9h 21m
Delta
Deal found 1/19$277
This Frontier deal was found by Cheapflights users on 1/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:00 am
SFO
-
MKE
1 stop10h 51m
Frontier
Mon 3/1610:37 am
MKE
-
SFO
1 stop10h 37m
Frontier
Deal found 1/20$278

Find flight deals from San Francisco to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$228
(Frontier)

One-way from

$111
(Frontier)

Popular in

November

Cheapest in

April

Average price

$437
Provider with most accurate pricing for San Francisco-Milwaukee-Mitchell flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Milwaukee-Mitchell flights.
Search Deals
From San Francisco to Milwaukee-Mitchell
Search Deals
One-way flight from San Francisco to Milwaukee-Mitchell
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 January 21, 2026.
Use the filters below to find and compare flights from San Francisco to Milwaukee that are best for you.

Fly from

San Francisco

Fly to

Milwaukee

Route

Depart

Return

Price

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Thu 3/5

10:58 pm-10:03 am

1 stop9h 05m

Milwaukee-Mitchell

Mon 3/16

10:37 am-7:14 pm

1 stop10h 37m

$228

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Sat 2/21

6:05 am-2:30 pm

1 stop6h 25m

Milwaukee-Mitchell

Wed 2/25

6:59 pm-11:47 pm

1 stop6h 48m

$251

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Wed 2/18

6:40 am-2:57 pm

1 stop6h 17m

Milwaukee-Mitchell

Wed 2/25

4:10 pm-11:18 pm

1 stop9h 08m

$251

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Tue 2/24

6:05 am-2:17 pm

1 stop6h 12m

Milwaukee-Mitchell

Sat 2/28

5:00 pm-11:25 pm

1 stop8h 25m

$251

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Sat 3/7

5:45 am-4:13 pm

1 stop8h 28m

Milwaukee-Mitchell

Sat 3/14

1:12 pm-7:07 pm

1 stop7h 55m

$257

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Wed 3/25

10:40 pm-8:50 am

1 stop8h 10m

Milwaukee-Mitchell

Tue 4/14

5:05 pm-10:25 pm

1 stop7h 20m

$257

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Wed 4/8

2:20 pm-11:58 pm

1 stop7h 38m

Milwaukee-Mitchell

Wed 4/15

5:45 pm-11:54 pm

1 stop8h 09m

$257

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Tue 4/7

10:35 pm-9:04 am

1 stop8h 29m

Milwaukee-Mitchell

Tue 4/14

2:59 pm-8:51 pm

1 stop7h 52m

$257

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Wed 2/25

2:05 pm-11:47 pm

1 stop7h 42m

Milwaukee-Mitchell

Sat 2/28

11:00 am-6:53 pm

2 stops9h 53m

$267

San FranciscoMilwaukee

SFO - MKE

SFOMKE

San Francisco

Fri 2/20

12:40 am-10:15 am

1 stop7h 35m

Milwaukee-Mitchell

Tue 2/24

7:30 am-10:41 pm

2 stops17h 11m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from San Francisco 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 San Francisco to Milwaukee in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

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

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

How far ahead should I book a flight from San Francisco to Milwaukee?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Milwaukee. Price data was last updated on January 16, 2026.

The best time to book flights from San Francisco to Milwaukee is 23 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from San Francisco to Milwaukee (average of $125). Flying from San Francisco to Milwaukee in December is currently the most expensive (average of $233). 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 January 21, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Francisco 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.
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,089 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,191 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,174 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,057 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from San Francisco 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 San Francisco to Milwaukee?

    For as low as $251, Frontier can have you in Milwaukee from San Francisco in 6h 17m. San Francisco and Milwaukee are separated by a distance of 1840 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Frontier ($122), Sun Country Air ($147), and American Airlines ($220) offers the cheapest pricing from San Francisco to Milwaukee. Frontier is 69% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Francisco to Milwaukee one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $82. American Airlines flights start at $115 while deals on United Airlines start at $125 one-way.

  • Where are the most common layover locations when flying from San Francisco to Milwaukee?

    Of the flights from San Francisco to Milwaukee that have layovers, most of them stop in Minneapolis.

  • What are some popular things to do or see while on a layover in Minneapolis?

    Minneapolis travelers tend to visit Minneapolis Armory, Orpheum Theatre, and State Theatre more than anywhere else. Minneapolis Armory, Orpheum Theatre, and State Theatre are located about 7.0 mi, 7.3 mi, and 7.3 mi, respectively from Minneapolis St Paul. Those on a layover in Minneapolis in need of a rental car can book one at Minneapolis St Paul for about $44.

  • Where are the least popular layover locations for San Francisco to Milwaukee flights?

    The least popular layover on flights from San Francisco to Milwaukee is Denver.

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

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

  • How can I find direct flights from San Francisco to Milwaukee?

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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 San Francisco to Milwaukee?

    Currently, October is the cheapest month in which you can book a flight from San Francisco to Milwaukee (average of $125). Flying from San Francisco to Milwaukee in December is currently the most expensive (average of $233). 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
New Berlin
Oak Creek
Wauwatosa

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Alternative routes for San Francisco to Milwaukee

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from San Francisco to Milwaukee

Discover the top 6 airlines that operate flights from San Francisco 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$122Average$250FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$147Average$445FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$220Average$404FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$226Average$401FlexibilityNo cancel feeOn-time69%
DeltaCheapest$237Average$342FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$280Average$424FlexibilityNo cancel feeOn-time63%

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