SAN - MKE

$105 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 4/20. 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
$210
Overall average: $447
Frontier
Fri 4/17Mon 4/20
SAN - MKE • 1 stop
Cheapest non-stop
$317
Southwest
Thu 4/16Mon 4/20
SAN - MKE • Non-stop
Nonstop flights
Mon, Thu, Fri, Sat, Sun
You can fly direct with Southwest. Average duration is 3h 56m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $210 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $386 (round-trip)
Shortest trip • 5h 57m (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 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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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

Fri, Apr 17 - Mon, Apr 20
Frontier Logo
6:25 am - 5:44 pm
SAN
-
MKE
9h 19m
1 stop
Frontier Logo
5:05 pm - 11:59 pm
MKE
-
SAN
8h 54m
1 stop
$210Frontier
Thu, Apr 16 - Mon, Apr 20
Frontier Logo
12:25 pm - 5:44 pm
SAN
-
MKE
27h 19m
1 stop
Frontier Logo
5:05 pm - 11:59 pm
MKE
-
SAN
8h 54m
1 stop
$221Frontier
Thu, Apr 16 - Mon, Apr 20
Southwest Logo
4:25 pm - 10:20 pm
SAN
-
MKE
3h 55mnonstop
Southwest Logo
2:25 pm - 4:45 pm
MKE
-
SAN
4h 20mnonstop
$317Southwest
Tue, Apr 14 - Fri, Apr 24
United Airlines Logo
11:00 am - 9:21 pm
SAN
-
MKE
8h 21m
1 stop
United Airlines Logo
5:44 pm - 10:30 pm
MKE
-
SAN
6h 46m
1 stop
$322United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
11:00 am - 9:49 pm
SAN
-
MKE
8h 49m
2 stops
United Airlines Logo
6:50 am - 11:25 am
MKE
-
SAN
6h 35m
1 stop
$327United Airlines
Mon, Apr 27 - Sat, May 2
Southwest Logo
4:25 pm - 10:20 pm
SAN
-
MKE
3h 55mnonstop
Southwest Logo
11:50 am - 6:45 pm
MKE
-
SAN
8h 55m
2 stops
$332Southwest
Sat, May 30 - Wed, Jun 3
Delta Logo
6:30 am - 3:09 pm
SAN
-
MKE
6h 39m
1 stop
Delta Logo
9:35 am - 2:20 pm
MKE
-
SAN
6h 45m
1 stop
$336Delta
Mon, Apr 20 - Thu, Apr 23
Southwest Logo
5:20 pm - 12:55 am
SAN
-
MKE
5h 35m
1 stop
Southwest Logo
3:30 pm - 10:00 pm
MKE
-
SAN
8h 30m
1 stop
$337Southwest
Thu, Apr 9 - Sun, Apr 12
United Airlines Logo
2:10 pm - 11:43 pm
SAN
-
MKE
7h 33m
1 stop
United Airlines Logo
5:10 am - 9:40 am
MKE
-
SAN
6h 30m
1 stop
$341United Airlines
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
6:32 am - 2:28 pm
SAN
-
MKE
5h 56m
1 stop
United Airlines Logo
10:45 am - 5:16 pm
MKE
-
SAN
8h 31m
2 stops
$342United 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.

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 Sundays 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 Tuesdays.

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 June and July, where the average cost of round-trip tickets is $476 and $467 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 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$105
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 5% 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 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 $105 for a one-way ticket and $210 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 737-800 Passenger/BBJ2 (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?

    You can catch a nonstop flight from San Diego to Milwaukee on on Monday, Thursday, Friday, Saturday, 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 $438 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 $336 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 $352 or less one-way and $579 or less round-trip.

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

Saturday

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

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 4319 reviews
8.0Comfort
8.1Boarding
7.5Entertainment
8.6Crew
7.0Food
Airline reviews

Boarding was easy. The seats are small and fairly uncomfortable

8.0 ExcellentNicole, Mar 2026
LGB - OAK
Read more Southwest reviews

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

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

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

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

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

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

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

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

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

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

OK, we were delayed and had to de plane and reboard.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

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

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

it was a very short flight so my expectations were low.

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

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

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

Not good. One of my luggage is missing. And until now they can’t find it

My 9:50AM flight was delayed to 3:40PM "due to incoming aircraft delay". No aircraft is "delayed" that long. Found out once we did board (after several changes in times) that the aircraft had a maintenance issue and we had to wait for another aircraft. Just tell us that. The aircraft we did get was old and the seats need to be updated. I have been traveling for several weeks with AA and you should refresh your entertainment content as frequent flyers have gone through most of your new content. I have Celiac and a shellfish allergy and continue to have struggles with meals on business and first class flights. Please keep this in mind. Sorry - was a long travel day yesterday and a bit cranky this morning with my experience comments. Still an AA fan.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

My seat was assigned last row behind restrooms No legroom’s I’m very Pettit Still was not comfortable Food choice was excellent

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

My flight was delayed by over an hour and the turbulance was horrible.

I was double booked for my ticket- they have record of it and admitted to their error but wouldn’t let me board until I paid once again for the fare- have documentation of their mistake -

I cannot effectively rate the food and drink as I had not. Otherwise, the trip was fine. The seats were nice, the crew was fine. They could smile once in a while. They all look like they were mad.

They cancelled the flight due to crew unavailability. The next day they cancelled the flight again.

For the price of the fare, there really isn’t much to complain about.

A Spirit agent caused me to miss my flight. The company has not responded for request of refund. Stay away from Spirit.

I arrived two hours early, and at 9:20 I was still queuing for security.

Got to LAX at 3:20 am, the counter personnel did not start to check in bags till 3:40 am. I patiently waited at the priority check in line as they started to take people from the general line. After about 15 minutes of waiting, I approached the lady exactly in front of the priority line and asked her if they would be taking people from the priority line or if I would need to switch to waiting in the general line. She responded “yes”, I then asked her yes to what? And she yelled back at me loudly “I SAID YES!” Needless to say, I waited at the end of the line of the general line. I could have been told the priority line would not be called upon and could have queued in the general line ahead of many people that arrived to cue after I did

Terrible they canceled the flight very sheepishly and ended up costing me 1200 dollars and kayak and xcover are doing nothing

No free snacks or drinks. Freezing. Uncomfortable. No plugs or entertainment. If you fly to LA the make you change terminals with a slow bus. Awful trip that took forever. Terrible airline- maybe the worst I’ve ever flown.

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

Information on your arrival and departure airports