MKE - SAN

$94 Find Cheap Flights from Milwaukee to San Diego

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 Diego departing on 5/12. 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 Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to San Diego.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to San Diego.
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Everything you should know

Cheapest round-trip
$187
Overall average: $380
American Airlines
Wed 4/15Mon 4/20
MKE - SAN • 1 stop
Cheapest non-stop
$305
Typical prices: $514-$688
Southwest
Sat 3/7Sat 3/14
MKE - SAN • Non-stop
Video guide: How to find cheap flights to San Diego
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Top airlines
American Airlines
Cheapest • from $187 (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 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 27% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
5 days a week
There are direct flights from Milwaukee to San Diego 5 days a week: Mon, Thu, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
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Booking Insights
Flight Deals

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

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

Wed, Apr 15 - Mon, Apr 20
American Airlines Logo
6:30 pm - 11:33 pm
MKE
-
SAN
7h 03m
1 stop
American Airlines Logo
10:40 pm - 7:41 am
SAN
-
MKE
7h 01m
1 stop
$187American Airlines
Mon, Mar 9 - Mon, Mar 16
American Airlines Logo
4:47 pm - 10:40 pm
MKE
-
SAN
7h 53m
1 stop
American Airlines Logo
10:35 pm - 7:49 am
SAN
-
MKE
7h 14m
1 stop
$191American Airlines
Fri, Apr 17 - Mon, Apr 20
Frontier Logo
7:37 pm - 12:01 am
MKE
-
SAN
6h 24m
1 stop
Frontier Logo
6:25 am - 6:59 pm
SAN
-
MKE
10h 34m
1 stop
$211Frontier
Wed, Feb 25 - Mon, Mar 2
American Airlines Logo
3:11 pm - 10:30 pm
MKE
-
SAN
9h 19m
1 stop
American Airlines Logo
10:43 pm - 11:03 am
SAN
-
MKE
10h 20m
1 stop
$221American Airlines
Mon, Mar 23 - Wed, Mar 25
Frontier Logo
7:15 pm - 9:14 pm
MKE
-
SAN
27h 59m
1 stop
Frontier Logo
2:08 pm - 1:02 pm
SAN
-
MKE
20h 54m
1 stop
$225Frontier
Mon, Mar 9 - Mon, Mar 16
Frontier Logo
7:46 pm - 12:08 am
MKE
-
SAN
6h 22m
1 stop
Frontier Logo
6:25 am - 6:20 pm
SAN
-
MKE
9h 55m
1 stop
$228Frontier
Mon, Mar 9 - Sun, Mar 15
Frontier Logo
7:46 pm - 9:14 pm
MKE
-
SAN
27h 28m
1 stop
Frontier Logo
9:18 pm - 6:20 pm
SAN
-
MKE
19h 02m
1 stop
$234Frontier
Mon, Mar 16 - Mon, Mar 23
Frontier Logo
7:15 pm - 9:14 pm
MKE
-
SAN
27h 59m
1 stop
Frontier Logo
9:58 pm - 1:02 pm
SAN
-
MKE
13h 04m
1 stop
$238Frontier
Mon, Mar 16 - Mon, Mar 23
American Airlines Logo
3:05 pm - 10:23 pm
MKE
-
SAN
9h 18m
1 stop
American Airlines Logo
10:43 pm - 11:03 am
SAN
-
MKE
10h 20m
1 stop
$246American Airlines
Fri, May 15 - Sun, May 17
Frontier Logo
7:37 pm - 8:04 pm
MKE
-
SAN
26h 27m
1 stop
Frontier Logo
12:36 pm - 6:59 pm
SAN
-
MKE
28h 23m
1 stop
$251Frontier
Booking Insights

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

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

Find cheap flights to San Diego
Find cheap flights to San Diego

Planning a trip from Milwaukee to San Diego? 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’s the cheapest day of the week to fly from Milwaukee to San Diego?

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

Your flight ticket price will generally be cheaper if you fly to San Diego on a Thursday and more expensive on a Tuesday. On your return trip to Milwaukee, you should consider flying back on a Friday, and avoid Saturdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Milwaukee to San Diego, 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 Diego is January, where tickets cost $281 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $475 and $437 respectively.

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

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 Diego, 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 Diego, you should book around 4 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$94
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Milwaukee to San Diego

When to book flights from Milwaukee to San Diego

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

  • What are some of the transportation choices from San Diego International Airport (SAN) to downtown San Diego?

    One choice for travelers is to take the Line 992 bus operated by San Diego Metro Transit, which can take you from the airport to the downtown area in around 15min. If you would prefer to travel in a taxi on this route, you should expect a trip time of around 5 minutes.

  • If I plan on renting a car when I arrive at the San Diego International Airport, where will I find the rental car companies?

    Every one of the rental car companies that operate at this airport do so at an offsite consolidated rental car facility. To access this facility after a flight, make your way to the ground transportation centers at each terminal building and then board one of the complimentary shuttle buses that run 24 hours a day from the airport terminals to the center.

  • Where is the best place to meet my rideshare after a flight to San Diego International Airport?

    Passengers arriving at Terminal One should exit the baggage claim area and then utilize the pedestrian crosswalk to access the ground transportation center. Passengers arriving at Terminal Two should exit the baggage claim and then make their way across the crosswalk to the transportation plaza. All rideshare vehicles pick up on the second lane from the right.

  • What hotels are close to the San Diego International Airport?

    One of the best choices that sits right across N. Harbor Dr. from the terminal buildings is the Sheraton San Diego Hotel & Marina offers a complimentary shuttle from the airport to the hotel.

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

    In the last 3 days, the lowest price for a flight from Milwaukee to San Diego was $94 for a one-way ticket and $187 for a round-trip.

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

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

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

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

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Milwaukee to San Diego are Southwest and Delta. With an average price for the route of $436 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 $368 and an overall rating of 7.9.

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

    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 Diego.

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

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

    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 Diego with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and SAN 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 Diego?

    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 Diego 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 Diego

  • Looking for a cheap flight? 25% of our users found flights on this route for $341 or less round-trip.
  • Passengers that would like to find a way to get to the General Mitchell International Airport (MKE) using a means other than driving their own car should consider taking the GRE Line operated by Milwaukee County Transit which makes the trip to the airport from the downtown area in around 30 minutes.
  • If you are going to drive your own car to the General Mitchell International Airport, you can go to the airport website to book a reservation for valet parking which passengers will find right across from the ticketing area of the terminal building. If instead, you want to find one of the most cost-effective ways to park at this airport, the Saver Lot is a great choice located on Air Cargo Way that features a shuttle bus back to the terminal building.
  • If you are a parent that is traveling with children through the General Mitchell International Airport, one of the great features of this airport is that it offers two different children's play areas with one in Concourse C next to Chilis restaurant and the other play area sitting between Gates D30 and D34.
  • Mom's bringing a little one that they are nursing through the General Mitchell International Airport should know that this airport features locking lactation suites in the Main Terminal as well as in Concourses C and D. In addition to a locking door, the suite features a fold-down shelf, a mirror, comfortable seating, as well as electrical outlet.
  • Passengers looking for an interesting way to spend their time at the General Mitchell International Airport before a flight should consider visiting the Mitchell Gallery of Flight, which features a large collection of well-restored vintage aircraft.

Prefer to fly direct from Milwaukee to San Diego?

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

Direct departures

Milwaukee-Mitchell to San Diego

Monday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

San Diego to Milwaukee-Mitchell

Monday

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 Milwaukee to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Milwaukee to San Diego. 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 Diego? 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 4284 reviews
8.0Comfort
8.6Crew
7.5Entertainment
7.0Food
8.1Boarding
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.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

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.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

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.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

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.

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 Diego

Information on your arrival and departure airports