SAN - MKE

$106 Find Cheap Flights from San Diego 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 Diego to Milwaukee departing on 1/20. 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 Diego to Milwaukee.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Milwaukee.
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Everything you should know

Cheapest round-trip
$257
Overall average: $611
Delta
Thu 1/8Fri 1/9
SAN - MKE • 1 stop
Cheapest non-stop
$450
Southwest
Fri 12/26Sat 1/3
SAN - MKE • Non-stop
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 27% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
6 days a week
There are direct flights from San Diego to Milwaukee 6 days a week: Mon, Tue, Thu, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
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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

Thu, Jan 8 - Fri, Jan 9
Delta Logo
1:29 pm - 9:15 pmSAN-MKE
5h 46m1 stop
Delta Logo
1:18 pm - 6:58 pmMKE-SAN
7h 40m1 stop
$257Delta
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Tue, Dec 16 - Sat, Dec 20
Delta Logo
2:19 pm - 11:54 pmSAN-MKE
7h 35m1 stop
Delta Logo
5:49 pm - 11:55 pmMKE-SAN
8h 06m1 stop
$267Delta
Find Deal
Wed, Dec 17 - Sun, Dec 21
United Airlines Logo
11:11 am - 9:47 pmSAN-MKE
8h 36m2 stops
United Airlines Logo
4:11 pm - 8:47 pmMKE-SAN
6h 36m1 stop
$282United Airlines
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Fri, Dec 5 - Tue, Dec 9
American Airlines Logo
3:06 pm - 11:05 pmSAN-MKE
5h 59m1 stop
American Airlines Logo
12:10 pm - 6:01 pmMKE-SAN
7h 51m1 stop
$289American Airlines
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Sat, Dec 13 - Wed, Dec 17
American Airlines Logo
6:15 am - 5:01 pmSAN-MKE
8h 46m1 stop
American Airlines Logo
5:00 am - 12:30 pmMKE-SAN
9h 30m1 stop
$292American Airlines
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Fri, Dec 26 - Sat, Jan 3
Delta Logo
9:45 pm - 9:31 amSAN-MKE
9h 46m1 stop
Delta Logo
5:49 pm - 11:55 pmMKE-SAN
8h 06m1 stop
$298Delta
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Sat, Dec 13 - Wed, Dec 17
Southwest Logo
7:45 am - 5:55 pmSAN-MKE
8h 10m1 stop
Southwest Logo
1:00 pm - 9:10 pmMKE-SAN
10h 10m2 stops
$318Southwest
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Tue, Dec 16 - Sat, Dec 20
Southwest Logo
9:45 pm - 9:30 amSAN-MKE
9h 45m1 stop
Southwest Logo
4:35 pm - 10:50 pmMKE-SAN
8h 15m2 stops
$323Southwest
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Thu, Dec 4 - Sat, Dec 6
Alaska Airlines Logo
4:25 pm - 2:55 pmSAN-MKE
20h 30m1 stop
Alaska Airlines Logo
3:51 pm - 10:47 pmMKE-SAN
8h 56m1 stop
$326Alaska Airlines
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Mon, Dec 8 - Wed, Dec 10
Delta Logo
6:20 am - 2:27 pmSAN-MKE
6h 07m1 stop
Delta Logo
11:41 am - 6:18 pmMKE-SAN
8h 37m1 stop
$327Delta
Find Deal
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.

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 Saturdays if you are looking for the best rates. For your return to San Diego, you’ll find the best rates on Wednesdays 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 September, where tickets cost $309 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is $611 and $472 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 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$106
Best time to beat the crowds but there is an average 44% increase in price.
Most popular time to fly with an average 3% 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.

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

    In the last 3 days, the lowest price for a flight from San Diego to Milwaukee was $106 for a one-way ticket and $257 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?

    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 737-700 Passenger/BBJ1 (winglets) 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?

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

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

    There are nonstop flights from San Diego to Milwaukee on a daily basis.

  • 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 $457 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 $384 and an overall rating of 7.9.

  • 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 $272 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

Tuesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Milwaukee-Mitchell to San Diego

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 5 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 4252 reviews
8.0Comfort
7.5Entertainment
8.6Crew
7.0Food
8.1Boarding
Airline reviews

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

10.0 ExcellentGordon, Nov 2025SAN - OAK
Read more Southwest reviews

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.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

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.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

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.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

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

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

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

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

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.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

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

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

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.

We loved the steward on the plane. He made the night enjoyable

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

No leg room. My knee was sore for a day.

Vegas is such a quick flight that amenities aren’t the important part, in my opinion. Just get me there efficiently and safely, and that’s exactly what they did!

The flight was severely delayed due to the missing flight attendants.

Flight was canceled without warning, gave credit that is hard to access. Awful airline.

Flight was cancelled without warning close to flight date. Stuck witha credit has to buy a new ticket from another airline in either to get to location. Email cancelling was lost in mail.

Spirit Airlines was ok but TRAVELHELPDESK, the 3rd party travel agent IS A JOKE! VERY RUDE CUSTOMER AGENTS ont he phone. NO HELP AT ALL. But the airlines was ok.

No frills - because you get what you pay for. The crew was amazing!! I had plenty of room to spread out because the flight was half full. Which made it easy to sleep.

The staff was very very rude in Las Vegas when boarding the flight. When presenting the boarding ticket. Las Vegas flight, it was hot and stuffy, it smelled really bad.

Dear All, I have harassment and accident with the flight attendant . This is my phone to talk 8168073567, please, leave phone message . Regards Emily,

Flight was on time but the amount of noise from several children and the kicking of my seat the entire flight was overwhelming.

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

Information on your arrival and departure airports