SAN - MKE

$149 Find Cheap Flights from San Diego to Milwaukee - Compare and Save

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 Diego to Milwaukee departing on 9/11. 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

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$245
Typical prices: $276-$501
Southwest
Tue 9/8Fri 9/11
SAN - MKE • 1 stop
Cheapest non-stop
$352
Typical prices: $309-$607
Southwest
Fri 9/4Fri 9/11
SAN - MKE • Non-stop
Nonstop flights
Mon, Thu, Fri, Sun
You can fly direct with Southwest. Average duration is 4h 00m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $245 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $432 (round-trip)
Shortest trip • 6h 04m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Milwaukee!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Milwaukee (SAN-MKE)

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

Tue, Sep 8 - Fri, Sep 11
Southwest Logo
10:40 pm - 9:50 amSAN  San Diego-MKE Milwaukee-Mitchell
9h 10m1 stop Nashville Intl
Southwest Logo
3:05 pm - 5:10 pmMKE  Milwaukee-Mitchell-SAN San Diego
4h 05mnonstop
$245Southwest
Tue, Sep 8 - Fri, Sep 11
Southwest Logo
10:40 pm - 9:50 amSAN  San Diego-MKE Milwaukee-Mitchell
9h 10m1 stop Nashville Intl
Southwest Logo
6:20 pm - 10:15 pmMKE  Milwaukee-Mitchell-SAN San Diego
5h 55m1 stop Phoenix Sky Harbor Intl
$254Southwest
Thu, Nov 12 - Mon, Nov 16
Alaska Airlines Logo
2:46 pm - 3:48 pmSAN  San Diego-MKE Milwaukee-Mitchell
23h 02m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:44 pm - 11:31 pmMKE  Milwaukee-Mitchell-SAN San Diego
8h 47m1 stop Seattle/Tacoma Intl
$317Alaska Airlines
Sat, Sep 5 - Sat, Sep 12
American Airlines Logo
9:48 am - 9:00 pmSAN  San Diego-MKE Milwaukee-Mitchell
9h 12m1 stop Chicago O'Hare Intl
American Airlines Logo
12:22 pm - 5:47 pmMKE  Milwaukee-Mitchell-SAN San Diego
7h 25m1 stop Dallas/Fort Worth
$332American Airlines
Fri, Sep 11 - Tue, Sep 15
Delta Logo
10:56 am - 8:31 pmSAN  San Diego-MKE Milwaukee-Mitchell
7h 35m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:59 pm - 8:37 pmMKE  Milwaukee-Mitchell-SAN San Diego
6h 38m1 stop Minneapolis St Paul
$332Delta
Sat, Sep 5 - Tue, Sep 15
Delta Logo
10:25 pm - 9:16 amSAN  San Diego-MKE Milwaukee-Mitchell
8h 51m1 stop Atlanta Hartsfield-Jackson
Delta Logo
9:37 am - 2:09 pmMKE  Milwaukee-Mitchell-SAN San Diego
6h 32m1 stop Detroit Metropolitan Wayne County
$332Delta
Sat, Sep 5 - Tue, Sep 8
United Airlines Logo
11:00 am - 9:03 pmSAN  San Diego-MKE Milwaukee-Mitchell
8h 03m1 stop Denver Intl
United Airlines Logo
5:00 am - 9:32 amMKE  Milwaukee-Mitchell-SAN San Diego
6h 32m1 stop Chicago O'Hare Intl
$332United Airlines
Sat, Sep 5 - Mon, Sep 7
United Airlines Logo
10:40 pm - 7:07 amSAN  San Diego-MKE Milwaukee-Mitchell
6h 27m1 stop Chicago O'Hare Intl
United Airlines Logo
5:00 am - 9:32 amMKE  Milwaukee-Mitchell-SAN San Diego
6h 32m1 stop Chicago O'Hare Intl
$332United Airlines
Fri, Sep 4 - Sat, Sep 5
American Airlines Logo
1:38 pm - 10:57 pmSAN  San Diego-MKE Milwaukee-Mitchell
7h 19m1 stop Dallas/Fort Worth
American Airlines Logo
2:42 pm - 9:22 pmMKE  Milwaukee-Mitchell-SAN San Diego
8h 40m1 stop Chicago O'Hare Intl
$346American Airlines
Sat, Nov 14 - Mon, Nov 16
Alaska Airlines Logo
5:30 pm - 3:48 pmSAN  San Diego-MKE Milwaukee-Mitchell
20h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:44 pm - 11:31 pmMKE  Milwaukee-Mitchell-SAN San Diego
8h 47m1 stop Seattle/Tacoma Intl
$346Alaska Airlines
Booking Insights

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

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

How much is a round-trip flight from San Diego to Milwaukee?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to Milwaukee departing in September.

Flight prices are below average for this route right now.

Flights to Milwaukee from San Diego usually cost between $426 and $556 in September.
The lowest price found in the past 5 days was $245 on Southwest (Sep 8-Sep 11).

What’s the cheapest day of the week to fly from San Diego to Milwaukee?

The average price of all round-trip flights from San Diego to Milwaukee clicked on KAYAK for each day over the last 12 months.

When flying from San Diego to Milwaukee, you should consider leaving on a Friday and avoid Wednesdays if you are looking for the best rates. For your return to San Diego, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego 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 Diego to Milwaukee is November, where tickets cost $327 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $498 and $490 respectively.

How far in advance should I book a flight from San Diego 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 Diego 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 Diego to Milwaukee, you should book around 4 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low season

January

Cheapest flight

$149
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from San Diego to Milwaukee

When to book flights from San Diego to Milwaukee

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

  • What services does United Airlines offer business class passengers on flights from San Diego to Milwaukee?

    Business class passengers have priority access to check-in, boarding, and baggage handling services for United Airlines flights from San Diego to Milwaukee. They can skip longer lines and enjoy quicker services. They can also access United's lounges at the airport, where they get to work, relax, and enjoy complimentary snacks, food, and drinks.

  • Can I change my booking for flights from San Diego to Milwaukee?

    Yes, it is possible to change your booking for flights from San Diego to Milwaukee. Alaska Airlines, for instance, charges a change fee for most flight changes. The fee amount depends on the ticket type you have purchased. You may also need to pay any difference in fare if the new flight you select is more expensive than your original flight.

  • How do I get from Milwaukee Airport to the city center?

    Taking a taxi from MKE is a straightforward option. There is a taxi stand outside the airport. Several shuttle services operate from the airport to downtown Milwaukee. Some of these services include GO Riteway, Milwaukee Airport Shuttle Service, and Airport Service Inc. Milwaukee County Transit System (MCTS) also operates several bus routes that connect the airport to downtown Milwaukee. The most convenient route is the GreenLine, which runs every 15 minutes and stops at several downtown locations.

  • What seat selection options are available on Southwest Airlines flights from San Diego to Milwaukee?

    Southwest Airlines has an open seating policy, which allows passengers to select their seats on a first-come, first-served basis. Instead of assigned seats, Southwest offers a boarding group and position system to determine when passengers can board the aircraft and choose their seats. However, passengers can purchase EarlyBird Check-In for an additional fee, which allows them to be automatically checked in before general check-in begins, providing an earlier boarding position.

  • How many flights are there between San Diego and Milwaukee per day?

    There is a maximum of 1 nonstop flight a day that takes off from San Diego and lands in Milwaukee, with an average flight time of 4h 00m. The most common departure time is 11:00 am and most flights take off in the morning. Each week, there are 4 flights.

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

    In the last 5 days, the lowest price for a flight from San Diego to Milwaukee was $123 for a one-way ticket and $245 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from San Diego to Milwaukee?

    American Airlines, Hawaiian Airlines, and Alaska Airlines offer inflight Wi-Fi service on the San Diego to Milwaukee flight route.

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the San Diego to Milwaukee flight route.

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

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

  • On which days can I fly direct from San Diego to Milwaukee?

    You can catch a nonstop flight from San Diego to Milwaukee on on Monday, Thursday, Friday, and Sunday.

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

    The two airlines most popular with KAYAK users for flights from San Diego to Milwaukee are Southwest and Delta. With an average price for the route of $437 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 $338 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from San Diego 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 Diego to Milwaukee.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Milwaukee from San Diego 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 Diego 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 Diego with another airline. Booking your flights between San Diego 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 Diego 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 Diego 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 Diego to Milwaukee

  • Looking for a cheap flight? 25% of our users found flights on this route for $248 or less one-way and $547 or less round-trip.
  • There are two terminals at San Diego Airport (SAN). Terminal 1 serves domestic flights operated by Southwest Airlines, Frontier Airlines, Allegiant Air, and Spirit Airlines which all offer flights from San Diego to Milwaukee. It is divided into two sections: Terminal 1 East and Terminal 1 West.
  • Delta Airlines offers several services designed to make air travel more comfortable and accessible for passengers with reduced mobility on flights from San Diego (SAN) to Milwaukee (MKE). The airline provides wheelchair assistance from check-in to boarding and deplaning.
  • Frontier Airlines allows cats and dogs to travel on their flights from San Diego to Milwaukee. You must reserve your pet's spot either online or by calling their customer service line. It is important to book your pet's flight early because only a limited number of pets are allowed on each flight.
  • Alaska Airlines offers flights from San Diego to Milwaukee and has invested in modernizing its fleet by replacing older aircraft with more fuel-efficient ones. This has helped the airline reduce its carbon footprint and improve fuel efficiency.
  • Passengers looking for a budget-friendly option for flights from San Diego to Milwaukee should consider Spirit Airlines. It is a low-cost airline and is known for offering affordable airfare and charging extra fees for additional services such as checked baggage, seat selection, and refreshments onboard.

Prefer to fly direct from San Diego to Milwaukee?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Diego to Milwaukee-Mitchell.
Find which airlines fly direct from San Diego Airport to Milwaukee-Mitchell Airport, which days they fly and book direct flights.

Direct departures

San Diego to Milwaukee-Mitchell

Monday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Milwaukee-Mitchell to San Diego

Monday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 4 airlines serving from San Diego to Milwaukee

 
See real verified KAYAK customer reviews for airlines flying from San Diego 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 Diego 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 4218 reviews
8.1Boarding
7.0Food
8.6Crew
7.5Entertainment
8.0Comfort
Airline reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

6.0 GoodGordon, Jul 2026
Read more Southwest reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

Slow boarding, limited food and drink portions. Bad delays and turbulence

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

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.

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

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Very good flight. Crew was great. No issues and we even arrived early.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

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.

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

Crew was excellent. Comfort seats not as nice as other kinds of planes.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Wifi did not work and they only served water, coffee, or tea.

Had assistance at airport getting from arrivals gate to departure gate; I couldn't have managed without that extra help. Thank you Delta.

The back to back mechanical delays from Denver to San Diego and then on my return flight from Denver to Great Falls it added extra time both ways

Service was professional and quick. Premium economy seat was comfortable given the class

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

Complimentary light meal would be appreciated. But great flight crew service on all legs

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

Deplaning was delayed because of Jetbridge equipment issues in MKE, causing an issue on an otherwise great flight.

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

Flight was ok. Unfortunately it was a Boeing 737, which is a cramped / tight airplane. I prefer the Airbus as they are a more comfortable flight experience.

We were traveling as a family of 5 and they refused to seat us together. There were entire rows open, and my 13 year old daughter had to sit alone. Ridiculous!

Well, true to American Airlines, both of my flights were delayed. But it’s a good thing that American is so consistently incompetent because if the first flight was delayed in the second flight was on time then I might’ve had a problem..

The flight from Milwaukee to Dallas was great the staff absolutely amazing. After that EVERYTHING WENT DOWN HILL!!! ABSOLUTELY HORRIBLE!!! WILL NOT FLY THIS AIRLINE AGAIN

not sure why you ask about food, I n3ver get food on flights except maybe cookies or pretzels. wifi was slow and in and out most of the flight not good.

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

there are no options s for snack besides cookies would ve nice to have a salty option n

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

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

Very poor delay in dfw was really bad n long

I didn't like that my paid for seat was changed 2 hours before my flight.

The gate changed over 6 times in the 4 hours before this flight having us walking all over and back again. The agent told me that the American app and the airport monitors are not reliable and I should Google the flight number for accurate flight information! Shocking tip but the gate still kept changing anyway and then the flight was delayed an hour because of another maintenance issue. Not a great experience.

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

Information on your arrival and departure airports