SFO - MKE

$107 Find Cheap Flights from San Francisco to Milwaukee

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Milwaukee departing on 4/19. 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 Milwaukee

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Milwaukee, 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 San Francisco to Milwaukee, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$218
Overall average: $430
Frontier
Thu 3/5Mon 3/9
SFO - MKE • 1 stop
Cheapest one-way
$107
Typical prices: $185-$343
Frontier
Sun 4/19
SFO - MKE • 1 stop
Top airlines
Frontier
Cheapest • from $218 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 56% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 8% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Milwaukee (SFO-MKE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Milwaukee 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 San Francisco to Milwaukee

Thu, Mar 5 - Mon, Mar 9
Frontier Logo
10:40 pm - 10:03 am
SFO
-
MKE
9h 23m
1 stop
Frontier Logo
7:46 pm - 12:28 am
MKE
-
SFO
6h 42m
1 stop
$218Frontier
Mon, Mar 9 - Mon, Mar 16
Frontier Logo
6:00 am - 6:51 pm
SFO
-
MKE
10h 51m
1 stop
Frontier Logo
10:38 am - 7:14 pm
MKE
-
SFO
10h 36m
1 stop
$229Frontier
Mon, Mar 9 - Mon, Mar 16
Frontier Logo
6:00 am - 6:51 pm
SFO
-
MKE
10h 51m
1 stop
Frontier Logo
10:38 am - 7:14 pm
MKE
-
SFO
10h 36m
1 stop
$230Frontier
Thu, Mar 12 - Mon, Mar 16
Frontier Logo
10:40 pm - 10:21 am
SFO
-
MKE
9h 41m
1 stop
Frontier Logo
10:38 am - 7:14 pm
MKE
-
SFO
10h 36m
1 stop
$238Frontier
Thu, Mar 19 - Mon, Mar 23
Frontier Logo
9:04 pm - 6:51 pm
SFO
-
MKE
19h 47m
1 stop
Frontier Logo
7:15 pm - 8:09 pm
MKE
-
SFO
26h 54m
1 stop
$249Frontier
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
6:30 am - 2:43 pm
SFO
-
MKE
6h 13m
1 stop
United Airlines Logo
3:45 pm - 10:47 pm
MKE
-
SFO
9h 02m
1 stop
$257United Airlines
Tue, Mar 24 - Mon, Mar 30
Frontier Logo
7:32 pm - 7:30 am
SFO
-
MKE
33h 58m
2 stops
Frontier Logo
7:15 pm - 12:28 am
MKE
-
SFO
7h 13m
1 stop
$265Frontier
Wed, Mar 25 - Mon, Mar 30
Frontier Logo
7:32 pm - 1:02 pm
SFO
-
MKE
15h 30m
1 stop
Frontier Logo
7:15 pm - 12:28 am
MKE
-
SFO
7h 13m
1 stop
$281Frontier
Thu, Apr 30 - Mon, May 4
Multiple Airlines Logo
2:00 pm - 11:58 pm
SFO
-
MKE
7h 58m
1 stop
Multiple Airlines Logo
7:37 pm - 11:25 pm
MKE
-
SFO
29h 48m
1 stop
$282Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
Delta Logo
10:30 am - 9:15 pm
SFO
-
MKE
8h 45m
2 stops
Delta Logo
1:21 pm - 8:33 pm
MKE
-
SFO
9h 12m
1 stop
$285Delta
Booking Insights

KAYAK's insights & trends for San Francisco to Milwaukee flights

Get data-powered insights and trends into flights from San Francisco to Milwaukee to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Francisco to Milwaukee?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Milwaukee, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Milwaukee is April, where tickets cost $366 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $442 and $430 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Milwaukee, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Milwaukee, you should book around 4 weeks before departure, which saves you about 56% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$107
Best time to beat the crowds but there is an average 1% increase in price.
Flight from San Francisco to Milwaukee

When to book flights from San Francisco to Milwaukee

Are your dates flexible? Find out the best times to travel from San Francisco to Milwaukee based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Milwaukee

  • What is the preferred means of transport to the city center from MKE?

    To go from the airport to the central business district of the city, the most convenient modes of transportation are a taxi, a shuttle, or a bus. They are situated at the entrances of each and every terminal.

  • What services are available at the rental car center at Milwaukee-Mitchell Airport?

    There are several rental companies that provide specialized services for customers, such as baby seats, child seats, booster seats, and hand controls to cater to the requirements of various kinds of passengers. Additionally, some workplaces include self-service kiosks, which both boost productivity and convenience, allowing for transactions to be completed without any complications.

  • Are there hotels near SFO airport?

    Your stay will find you in one of our luxurious rooms, complete with floor-to-ceiling windows that look out over the harbor or the airport. The opulent Grand Hyatt at SFO can be found just next to San Francisco International Airport. Because of its proximity to the airport's main entrance, the hotel may be reached quickly and easily by automobile or by using the SFO AirTrain from any terminal.

  • Are there parking services at SFO airport?

    The Domestic Garage, International Garage A, International Garage G, Long Term Garage, and Long Term Surface are the five primary lots at San Francisco International Airport that are used for on-site parking. There are an extra 150 parking spaces available for valet parking. Plenty of parking spaces are available, however they tend to fill up fast.

  • What is the cheapest flight from San Francisco to Milwaukee?

    In the last 3 days, the lowest price for a flight from San Francisco to Milwaukee was $107 for a one-way ticket and $218 for a round-trip.

  • Do I need a passport to fly between San Francisco and Milwaukee?

    No, a passport isn't needed to fly from San Francisco to Milwaukee. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from San Francisco to Milwaukee?

    San Francisco and Milwaukee are both served by 1 main airport. You will leave San Francisco from San Francisco and will be arriving at Milwaukee-Mitchell.

  • Which aircraft models fly most regularly from San Francisco to Milwaukee?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Milwaukee?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between San Francisco and Milwaukee, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Milwaukee from San Francisco?

    Minneapolis is the most popular layover city among KAYAK users traveling from San Francisco to Milwaukee.

  • Which is the best airline for flights from San Francisco to Milwaukee, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Francisco to Milwaukee are Southwest and Delta. With an average price for the route of $426 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $349 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Francisco to Milwaukee?

    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 San Francisco to Milwaukee.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Milwaukee?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Milwaukee from San Francisco 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 San Francisco to Milwaukee?

    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 to Milwaukee with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and MKE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Milwaukee?

    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 to Milwaukee from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Milwaukee

  • San Francisco International Airport (SFO) has lounges available for those who want to unwind. Passengers leaving from San Francisco International Airport have access to the American Express Centurion Lounge, a high-end airport lounge serving some of the finest cuisine and beverages in the world. Everything from the complimentary Wi-Fi to the tasty regional meals to the wine tasting guarantees a fantastic day.
  • There are 19 breastfeeding rooms accessible to mothers at SFO, 13 of which are private, big, and beautiful. Women who need a private space to breastfeed or express milk may find one here at the airport. Terminals 1, 2, and 3 all provide private nursing rooms for mothers to use before or after passing through security.
  • There are a few designated areas in each terminal at San Francisco International Airport where pets may relieve themselves. After clearing security, passengers at Terminal 1 or Terminal 3 may use such facilities. Follow the painted paw prints to the curbside pre-security checkpoint on the Arrivals Level of the terminal. These checkpoints are located along the airport's outside boundary.
  • The Milwaukee Airport (MKE) has a medium-sized terminal with three concourses (C, D, and E), a total of 38 gates, and around two dozen restaurants and retail establishments spaced out between the concourses and the main landside terminal. There is free Wi-Fi accessible to pass the time. Access to the airport's first class lounge may be had for a price, offering passengers the opportunity for even greater levels of luxury.
  • Airports in both Milwaukee and San Francisco are well-equipped to accommodate disabled travelers. Before arriving at the airport, passengers may seek assistance in renting a wheelchair or navigating the airport terminal. Before, during, or after using the airport's services, passengers are encouraged to approach any member of staff for assistance. Asking about the airport could be a good place to start if you ever find yourself in need of assistance in this area.

Reviews of the top 5 airlines serving from San Francisco to Milwaukee

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Milwaukee. 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 San Francisco to Milwaukee? 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.
8.0
SouthwestOverall score based on 4280 reviews
7.5Entertainment
7.0Food
8.0Comfort
8.1Boarding
8.6Crew
Airline reviews

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

8.0 ExcellentJoseph, Jan 2026
LGB - PHX
Read more Southwest reviews

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Premium Plus is a really good idea for longer flights

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

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.

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

It would be nice to have some low carb options in the snacks.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

We were upgraded to First Class and it was a great flight

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

Everything you need to know for your flight from San Francisco to Milwaukee

Information on your arrival and departure airports