MKE - SFO

$101 Find Cheap Flights from Milwaukee to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Milwaukee to San Francisco departing on 4/27. 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 San Francisco

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

Cheapest round-trip
$225
Overall average: $442
Frontier
Mon 3/16Wed 3/25
MKE - SFO • 1 stop
Cheapest one-way
$101
Typical prices: $138-$211
Frontier
Mon 4/27
MKE - SFO • 1 stop
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Top airlines
Frontier
Cheapest • from $225 (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 53% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 17% price drop
April
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 Milwaukee to San Francisco (MKE-SFO)

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

Mon, Mar 16 - Wed, Mar 25
Frontier Logo
10:38 am - 7:14 pm
MKE
-
SFO
10h 36m
1 stop
Frontier Logo
7:32 pm - 1:02 pm
SFO
-
MKE
15h 30m
1 stop
$225Frontier
Mon, Mar 9 - Thu, Mar 12
Frontier Logo
7:46 pm - 12:28 am
MKE
-
SFO
6h 42m
1 stop
Frontier Logo
10:40 pm - 10:21 am
SFO
-
MKE
9h 41m
1 stop
$228Frontier
Mon, Apr 27 - Sat, May 2
Multiple Airlines Logo
7:37 pm - 12:22 am
MKE
-
SFO
6h 45m
1 stop
Multiple Airlines Logo
2:00 pm - 2:13 pm
SFO
-
MKE
22h 13m
1 stop
$229Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Frontier Logo
7:15 pm - 12:28 am
MKE
-
SFO
7h 13m
1 stop
Frontier Logo
10:48 pm - 1:02 pm
SFO
-
MKE
12h 14m
1 stop
$236Frontier
Wed, Apr 22 - Wed, Apr 29
Delta Logo
12:32 pm - 8:24 pm
MKE
-
SFO
9h 52m
1 stop
Delta Logo
6:20 am - 4:34 pm
SFO
-
MKE
8h 14m
1 stop
$237Delta
Wed, Mar 4 - Wed, Mar 4
United Airlines Logo
6:00 am - 2:07 pm
MKE
-
SFO
10h 07m
1 stop
United Airlines Logo
11:59 pm - 10:30 am
SFO
-
MKE
8h 31m
1 stop
$251United Airlines
Tue, Mar 3 - Tue, Mar 10
United Airlines Logo
9:44 am - 3:51 pm
MKE
-
SFO
8h 07m
1 stop
United Airlines Logo
6:30 am - 2:43 pm
SFO
-
MKE
6h 13m
1 stop
$254United Airlines
Wed, Apr 22 - Wed, Apr 29
American Airlines Logo
11:49 am - 7:15 pm
MKE
-
SFO
9h 26m
1 stop
American Airlines Logo
10:42 am - 8:06 pm
SFO
-
MKE
7h 24m
1 stop
$257American Airlines
Fri, Mar 6 - Mon, Mar 9
Frontier Logo
10:48 am - 7:14 pm
MKE
-
SFO
10h 26m
1 stop
Frontier Logo
6:00 am - 6:51 pm
SFO
-
MKE
10h 51m
1 stop
$268Frontier
Mon, Apr 20 - Wed, Apr 22
Multiple Airlines Logo
7:37 pm - 12:22 am
MKE
-
SFO
6h 45m
1 stop
Multiple Airlines Logo
7:15 am - 10:00 pm
SFO
-
MKE
12h 45m
2 stops
$269Multiple Airlines
Booking Insights

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

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

Find cheap flights to San Francisco
Find cheap flights to San Francisco

Planning a trip from Milwaukee to San Francisco? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Milwaukee to San Francisco, 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 Milwaukee to San Francisco is April, where tickets cost $300 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $463 and $442 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Milwaukee to San Francisco, 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 Milwaukee to San Francisco, you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$101
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Milwaukee to San Francisco

When to book flights from Milwaukee to San Francisco

Are your dates flexible? Find out the best times to travel from Milwaukee to San Francisco 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 Milwaukee to San Francisco

  • Is there an art program at San Francisco International Airport (SFO)?

    As you walk through the terminals on your arrival, spare time and experience the airport’s diverse exhibitions on scientific, art, and cultural topics from various sources. Also, you can take a self-guided tour using the iPad kiosks in Terminals 2 and 3 and appreciate the hidden gems at this property.

  • Does SFO have a spa?

    If you arrive at SFO fatigued after a long haul from MKE, you can get some therapy in one of the spas at this facility to relax your emotions and calm your nerves. Walk into the XpresSpa in Terminal 3 (Near Gates 80 - 90) and enjoy a massage, a facial, or a pedicure.

  • Are there car rentals at San Francisco International Airport?

    Nothing beats the convenience of exploring the city of San Francisco in a car. You can locate counters for numerous car rental agencies after the baggage claim. A free AirTrain Blue shuttle leaves every 5-15min from the terminals to the pick-up garage along McDonnell Road. It might be best if you booked in advance to get cheaper rates.

  • Are there any services for passengers with limited mobility at SFO upon arrival?

    Passengers with disabilities or limited mobility will have their needs catered to when they land at SFO. The facility has wheelchair-accessible amenities such as toilets. In addition, various airlines, in collaboration with the airport, provide trained agents to aid their movements through the customs and security desks after deplaning.

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

    In the last 3 days, the lowest price for a flight from Milwaukee to San Francisco was $101 for a one-way ticket and $225 for a round-trip.

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

    No

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

    On your way to San Francisco, you’ll fly out from Milwaukee-Mitchell. You’ll be landing at San Francisco.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Milwaukee to San Francisco are Southwest and Delta. With an average price for the route of $416 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 $326 and an overall rating of 7.9.

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

    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 Milwaukee to San Francisco.

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

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

    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 San Francisco with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and SFO 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 Milwaukee to San Francisco?

    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 San Francisco from Milwaukee 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 Milwaukee to San Francisco

  • Suppose you intend to fly with Delta Airlines from Milwaukee Mitchell International Airport (MKE) to San Francisco; you’ll be glad to learn that the carrier runs its hub at San Francisco International Airport (SFO). If you’re traveling aboard this carrier, you’ll arrive at SFO via Terminal 2. You’ll find the Centurion Lounge in Concourse D and enjoy priority clearance under the fast lane program.
  • Milwaukee Mitchell International Airport features a two-level Main Terminal consisting of Concourses C and D and a small International Arrivals Terminal. Inter-terminal movement is facilitated by free shuttle buses, which also connect the parking lots. American Airlines utilizes Concourse D, gates D52, D54 - D56.
  • Religious souls keen to have a private session with their maker before flying to SFO will be glad to note that the facility offers a meditation room. Escape to this sacred oasis if you’re looking for a quiet and tranquil location for thought, reflection, and prayer before departure. You can locate this suite on the daily parking moving walkway on level 3 of the parking lot.
  • With hourly and daily parking options, those looking to drop off their cars at Milwaukee Mitchell International Airport before their voyage to SFO won’t have a problem finding a space. As SFO is more than 5h flight away from MKE, consider a daily parking lot. You’ll find room on every floor of the parking garage.
  • MKE provides essential family amenities, including lactating suites for mothers and the littlest family members to enjoy. The establishment teamed up with Mamava to install lactation rooms in the Main Terminal and Concourse C. The spaces are clean and quiet and offer privacy when pumping or breastfeeding. Still, they feature mirrors, comfortable chairs, and power outlets.

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

 
See real verified KAYAK customer reviews for airlines flying from Milwaukee to San Francisco. 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 Milwaukee to San Francisco? 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 4279 reviews
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
8.6Crew
Airline reviews

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

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

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

The flight crew was extremely rude and especially not helpful when our flight was delayed.

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.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

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

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.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Connecting flight is on time and boarding was a breeze!

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

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.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Flight was late - I was downgraded from first class to coach

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

7 hours delayed due to operational issues on United’s end. Basically laziness.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

did not have enough meal for first class passengers so offer us snack

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

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 costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

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.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

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

Information on your arrival and departure airports